feat(infer): messages starting with "other:" are not monthly fees

When the bank message starts with "other:" (case-insensitive), inference does not look for a month, neither in the text nor from the payment date. The trimmed message is written to Purpose, so reconcile books the payment as an "other" transaction for the person instead of a monthly fee. Messages containing "other:" elsewhere are unchanged. - matching.IsOtherPurpose / is_other_purpose shared by inference and reconcile - reconcile applies the rule to rows not yet processed by inference - no person found: Purpose is still written, row shows as unmatched - implemented in Go and legacy Python; four new parity fixtures Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
fix(go): show "Expected: ?" in junior tooltip for unknown fees
2026-10-08 12:37:03 +02:00 · 2026-10-08 12:37:03 +02:00 · 2026-10-08 12:27:14 +02:00 · 2026-10-08 12:17:15 +02:00 · 2026-10-08 12:05:16 +02:00 · 2026-10-08 12:04:59 +02:00
121 changed files with 2509 additions and 425 deletions
@@ -31,11 +31,11 @@ jobs:
            TAG=${{ inputs.tag }}
          fi
          IMAGE=gitea.home.hrajfrisbee.cz/${{ github.repository }}:$TAG
-          docker build -f build/Dockerfile \
+          docker build -f legacy/build/Dockerfile \
            --build-arg GIT_TAG=$TAG \
            --build-arg GIT_COMMIT=${{ github.sha }} \
            --build-arg BUILD_DATE=$(date -u +%Y-%m-%dT%H:%M:%SZ) \
-            -t $IMAGE .
+            -t $IMAGE legacy/
          docker push $IMAGE

  build-go:
@@ -0,0 +1,105 @@
+name: GitOps image update
+
+on:
+  # Auto-fires when "Build and Push" completes successfully (tag push).
+  workflow_run:
+    workflows: ["Build and Push"]
+    types: [completed]
+
+  # Manual trigger for dry-runs and one-off bumps.
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Git tag to deploy (without the -go suffix, e.g. 0.37)"
+        required: true
+      dry_run:
+        description: "Dry run — print diff, do not open a PR"
+        type: boolean
+        default: false
+      uh_cli_version:
+        description: "uh-cli version override (e.g. v0.2.0). Defaults to v0.1.0."
+        required: false
+
+env:
+  TEA_VERSION: "0.9.2"
+  # Resolved priority: manual input → repo/org variable → hardcoded default.
+  UH_CLI_VERSION: ${{ inputs.uh_cli_version || vars.UH_CLI_VERSION || 'v0.1.0' }}
+
+jobs:
+  gitops-pr:
+    runs-on: ubuntu-latest
+    # Skip if triggered by workflow_run that did not succeed.
+    if: >
+      github.event_name == 'workflow_dispatch' ||
+      github.event.workflow_run.conclusion == 'success'
+    container:
+      image: ubuntu:latest
+
+    env:
+      GITEA_TOKEN: ${{ secrets.GITOPS_TOKEN }}
+
+    steps:
+      - name: Install git, curl, ca-certificates, jq
+        run: |
+          apt-get update -qq
+          apt-get install -y --no-install-recommends git curl ca-certificates jq
+
+      - name: Install tea
+        run: |
+          curl -fsSL \
+            "https://gitea.com/gitea/tea/releases/download/v${TEA_VERSION}/tea-${TEA_VERSION}-linux-amd64" \
+            -o /usr/local/bin/tea
+          chmod +x /usr/local/bin/tea
+
+      - name: Install uh-cli
+        run: |
+          curl -fsSL \
+            "https://gitea.home.hrajfrisbee.cz/kacerr/uh-cli/releases/download/${UH_CLI_VERSION}/uh-cli-${UH_CLI_VERSION}-linux-amd64" \
+            -o /usr/local/bin/uh-cli
+          chmod +x /usr/local/bin/uh-cli
+
+      - name: Resolve image tag
+        id: resolve
+        run: |
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            IMAGE="gitea.home.hrajfrisbee.cz/${{ github.repository }}:${{ inputs.tag }}-go"
+          else
+            # workflow_run: head_branch is not populated for tag pushes in Gitea Actions.
+            # Look up the tag name that points to the triggering commit SHA via the API.
+            SHA="${{ github.event.workflow_run.head_sha }}"
+            GIT_TAG=$(curl -fsSL \
+              -H "Authorization: token ${GITEA_TOKEN}" \
+              "https://gitea.home.hrajfrisbee.cz/api/v1/repos/${{ github.repository }}/tags?limit=50" \
+              | jq -r --arg sha "$SHA" '.[] | select(.commit.sha == $sha) | .name')
+            IMAGE="gitea.home.hrajfrisbee.cz/${{ github.repository }}:${GIT_TAG}-go"
+          fi
+          echo "image=${IMAGE}" >> "$GITHUB_OUTPUT"
+          echo "Resolved image: ${IMAGE}"
+
+      - name: Configure git identity and credentials
+        run: |
+          git config --global user.name  "uh-cli bot"
+          git config --global user.email "bot@hrajfrisbee.cz"
+          # Store credentials separately so the --git-repo URL stays clean.
+          # Tea matches the login URL against the remote URL; embedded credentials
+          # break that matching and cause "path segment [0] is empty" on pr create.
+          git config --global credential.helper store
+          echo "https://kacerr:${GITEA_TOKEN}@gitea.home.hrajfrisbee.cz" >> ~/.git-credentials
+
+      - name: Authenticate tea
+        run: |
+          tea login add \
+            --name     ci \
+            --url      https://gitea.home.hrajfrisbee.cz \
+            --token    "$GITEA_TOKEN"
+
+      - name: Open image-update PR (or dry run)
+        run: |
+          set -x
+          uh-cli -v gitops deployment update \
+            --deployment-name fuj-management \
+            --deployment-namespace fuj \
+            --set-image "${{ steps.resolve.outputs.image }}" \
+            --git-repo "https://gitea.home.hrajfrisbee.cz/kacerr/home-kubernetes" \
+            --git-path gitops/home-kubernetes \
+            ${{ (github.event_name == 'workflow_dispatch' && inputs.dry_run == 'true') && '--dry-run' || '' }}
@@ -1,111 +0,0 @@
-name: Deploy to K8s
-on:
-  workflow_dispatch:
-  push:
-    branches:
-      - '**'
-jobs:
-  deploy:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Debug - print Gitea Actions environment
-        run: |
-          echo "=== All environment variables ==="
-          env | sort
-          echo ""
-          echo "=== GITHUB_* / GITEA_* / ACTIONS_* vars ==="
-          env | grep -E '^(GITHUB|GITEA|ACTIONS)_' | sort
-
-      - name: Install kubectl
-        run: |
-          curl -sfLO "https://dl.k8s.io/release/$(curl -sfL https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
-          install kubectl /usr/local/bin/
-
-      - name: Get Kanidm token from Vault
-        id: vault
-        run: |
-          set -euxo pipefail
-
-          VAULT_AUTH_RESPONSE=$(curl -f --request POST \
-            --data '{"role_id":"${{ secrets.VAULT_ROLE_ID }}","secret_id":"${{ secrets.VAULT_SECRET_ID }}"}' \
-            https://vault.hrajfrisbee.cz/v1/auth/approle/login)
-
-          echo "Vault auth response: $VAULT_AUTH_RESPONSE" >&2
-          VAULT_TOKEN=$(echo "$VAULT_AUTH_RESPONSE" | jq -r '.auth.client_token')
-
-          # Read the kanidm API token
-          SECRET_RESPONSE=$(curl -f \
-            -H "X-Vault-Token: ${VAULT_TOKEN}" \
-            https://vault.hrajfrisbee.cz/v1/secret/data/gitea/gitea-ci)
-
-          echo "Secret response: $SECRET_RESPONSE" >&2
-          API_TOKEN=$(echo "$SECRET_RESPONSE" | jq -r '.data.data.token')
-
-          echo "::add-mask::${API_TOKEN}"
-          echo "api_token=${API_TOKEN}" >> "$GITHUB_OUTPUT"
-
-      - name: Exchange for K8s OIDC token via Kanidm
-        id: k8s
-        run: |
-          API_TOKEN="${{ steps.vault.outputs.api_token }}"
-          echo "api_token length: ${#API_TOKEN}" >&2
-          echo "api_token prefix (first 8 chars): ${API_TOKEN:0:8}..." >&2
-
-          HTTP_BODY=$(mktemp)
-          HTTP_STATUS=$(curl -sS -X POST "https://idm.home.hrajfrisbee.cz/oauth2/token" \
-            -d "grant_type=urn:ietf:params:oauth:grant-type:token-exchange" \
-            -d "client_id=k8s" \
-            -d "subject_token=${API_TOKEN}" \
-            -d "subject_token_type=urn:ietf:params:oauth:token-type:access_token" \
-            -d "audience=k8s" \
-            -d "scope=openid groups" \
-            -o "$HTTP_BODY" -w "%{http_code}")
-
-          echo "HTTP status: $HTTP_STATUS" >&2
-          echo "Response body:" >&2
-          cat "$HTTP_BODY" >&2
-
-          RESPONSE=$(cat "$HTTP_BODY")
-          ID_TOKEN=$(echo "$RESPONSE" | jq -r '.id_token // empty')
-
-          if [ -z "$ID_TOKEN" ]; then
-            echo "::error::Kanidm token exchange failed (HTTP $HTTP_STATUS)"
-            exit 1
-          fi
-
-          echo "::add-mask::${ID_TOKEN}"
-          echo "id_token=${ID_TOKEN}" >> "$GITHUB_OUTPUT"
-
-          # Sanity check
-          # Warning - this is the part that is failing
-          # echo "$ID_TOKEN" | cut -d. -f2 | base64 -d 2>/dev/null | jq '{sub, groups, exp}'
-
-
-      - name: Debug - print environment before kubectl
-        run: env | sort
-
-      - name: Configure kubectl & deploy
-        run: |
-          echo "${{ secrets.K8S_CA_CERT }}" > /tmp/ca.crt
-          
-          kubectl config set-cluster mycluster \
-            --server=https://192.168.0.31:6443 \
-            --insecure-skip-tls-verify=true          
-          # --certificate-authority=/tmp/ca.crt \
-
-          kubectl config set-credentials gitea-ci \
-            --token="${{ steps.k8s.outputs.id_token }}"
-
-          kubectl config set-context gitea-ci \
-            --cluster=mycluster --user=gitea-ci
-
-          kubectl config use-context gitea-ci
-
-          kubectl auth whoami
-          kubectl get ns
-
-          # your deploy here
-          # kubectl apply -f k8s/
@@ -2,14 +2,16 @@
    "version": "0.2.0",
    "configurations": [
        {
-            "name": "Python Debugger: Flask",
+            "name": "Python Debugger: Flask (legacy)",
            "type": "debugpy",
            "request": "launch",
            "module": "flask",
-            "python": "${workspaceFolder}/.venv/bin/python",
+            "python": "${workspaceFolder}/legacy/.venv/bin/python",
+            "cwd": "${workspaceFolder}/legacy",
            "env": {
                "FLASK_APP": "app.py",
-                "FLASK_DEBUG": "1"
+                "FLASK_DEBUG": "1",
+                "CREDENTIALS_PATH": "${workspaceFolder}/.secret/fuj-management-bot-credentials.json"
            },
            "args": [
                "run",
@@ -1,5 +1,68 @@
 # Changelog

+## 2026-10-08 12:37 CEST — feat(infer): messages starting with "other:" are not monthly fees
+
+- When the bank message starts with `other:` (case-insensitive), inference no longer looks for a month. It copies the trimmed message into Purpose, so the payment is linked to the person as an "other" transaction and not counted as a monthly fee. Messages that contain `other:` elsewhere are inferred as before.
+- If no person is found, Purpose is still written and the row shows under unmatched for a manual fix.
+- Reconcile applies the same rule to rows not yet processed by inference.
+- Existing rows are not re-inferred; clear Person and Purpose on a row to reprocess it.
+- Go and Python: `matching.IsOtherPurpose` / `is_other_purpose`, `InferTransactionDetails` / `infer_transaction_details`, reconcile fallback; four new parity fixtures.
+- Also fixed (Go): junior cell tooltip showed `Expected: 0` instead of `Expected: ?` when a month with unknown expected fee had a payment.
+
+## 2026-10-08 12:16 CEST — feat(go): scheduled bank sync (Go only)
+
+- The Go server now runs the bank sync (sync → infer → flush cache) by itself at the times in `SYNC_SCHEDULE` (comma-separated `HH:MM`, default `04:00`, `off` disables), read in `SYNC_TZ` (default `Europe/Prague`). Nothing runs at startup; an invalid value stops the server at startup with an error.
+- Manual `/sync-bank` and scheduled runs share one lock, so two syncs can no longer overlap; a second request gets "a sync is already running".
+- The page footer shows the last sync since start (time, trigger, ok/FAILED) and the next scheduled run.
+- The binary embeds the time zone database (`time/tzdata`), since the Alpine image has none.
+- Deliberately not implemented in the legacy Python app, which is being phased out; recorded in `CLAUDE.md` under "Deliberately Go-only features".
+- Key files: `go/internal/scheduler/`, `go/internal/services/banksync/runner.go`, `go/cmd/fuj/main.go`, `go/internal/config/config.go`, `go/internal/web/`.
+
+## 2026-10-08 12:04 CEST — fix(sync): dashboard sync covers the current year plus Nov–Dec of the previous one
+
+- `/sync-bank` now uses one shared default window in both implementations: 1 November of the previous year to 31 December of the current year. Payments dated around New Year are picked up in January; duplicates are still filtered by Sync ID.
+- Python previously used a hardcoded `2026-01-01`..`2026-12-31` and would have stopped syncing on 2027-01-01; Go used the current calendar year only.
+- Added `make sync-year [YEAR=N]` with the same window; `make sync-2026` is kept. The CLI default without flags (last 30 days) is unchanged.
+- Key files: `go/internal/services/banksync/sync.go` (`DefaultWindow`), `go/cmd/fuj/main.go`, `legacy/scripts/sync_fio_to_sheets.py` (`default_sync_window`), `legacy/app.py`.
+
+## 2026-10-08 11:53 CEST — feat(fees): adult rates for 2026-07 through 2026-12, default 600
+
+- Adult default monthly rate (months not in the table): 700 → 600 CZK.
+- 2026-07 and 2026-08: 600 → 0 CZK; 2026-09 through 2026-12 added at 600 CZK (September and October were previously billed at the old 700 default).
+- The single-session fee (200 CZK) is now capped at the month's rate, so a 0-rate month is free for one session too.
+- Mirrored in `go/internal/domain/fees/fees.go` and `legacy/scripts/attendance.py`; three new parity fixtures for `calculate_fee`.
+
+## 2026-10-08 11:48 CEST — fix(ci): remove kubernetes-deploy workflow that leaked secrets to logs
+
+- Deleted `.gitea/workflows/kubernetes-deploy.yaml`. It ran on every push to every branch, deployed nothing, and echoed the Vault login response, the Kanidm API token response and the OIDC token response to the job log.
+- Deployment is handled by `gitops-update.yaml`. Repo secrets `VAULT_ROLE_ID`, `VAULT_SECRET_ID` and `K8S_CA_CERT` are now unused.
+- Follow-up outside the repo: rotate the Vault AppRole secret and the Kanidm API token, and clear old job logs.
+
+## 2026-10-08 11:34 CEST — fix(python): return months_to_show from /api/adults and /api/juniors
+
+- Go already returned `months_to_show` in the JSON API; Python only passed it to its HTML templates. Backported the key so the API contract matches and `make parity` reports 3/3 routes.
+- Key files: `legacy/app.py`, `legacy/tests/test_app.py`.
+
+## 2026-10-08 11:34 CEST — fix: VS is always a string, on read and on write
+
+- Go rendered numeric sheet cells with `fmt.Sprint`, so a numeric VS came out as `2.609767878e+09`. Text columns of the payments sheet now go through `sheets.CellString` (plain digits); bank inference uses it too.
+- Both sync implementations now append VS as a text cell (leading apostrophe under `USER_ENTERED`), so Sheets no longer stores it as a number or drops leading zeros. Existing rows are unchanged.
+- Key files: `go/internal/io/sheets/cell.go`, `go/internal/services/membership/sources.go`, `go/internal/services/banksync/{sync,infer}.go`, `legacy/scripts/sync_fio_to_sheets.py`.
+
+## 2026-10-08 11:33 CEST — refactor: move Python implementation to legacy/, Go is primary
+
+- Go (`go/`) is now the primary implementation. The original Python version moved to `legacy/` (`app.py`, `scripts/`, `templates/`, `tests/`, `pyproject.toml`, `uv.lock`, `build/`) and is considered legacy; new features are still built in both.
+- `CLAUDE.md` rewritten for the Go-first layout, with a "Dual implementation rule" section.
+- Makefile Python targets keep their names and point at `legacy/`; virtualenv is `legacy/.venv`, Python cache is `legacy/tmp/`; `CREDENTIALS_PATH` is exported pointing at the root `.secret/` file.
+- CI builds the Python image with `legacy/` as context; the image no longer contains the Makefile. `legacy/.dockerignore` now takes effect and excludes nested `__pycache__`.
+- Go comments, fixture README, capture script and VS Code launch config updated to the new paths.
+
+## 2026-06-12 19:32 CEST — feat(ci): gitops image-update PR workflow
+
+- Added `.gitea/workflows/gitops-update.yaml`: after each successful Go image build, `uh-cli gitops deployment update` opens a PR in `kacerr/home-kubernetes` bumping the `fuj-management` Deployment (namespace `fuj`) to the new image tag.
+- Supports `workflow_run` auto-trigger and `workflow_dispatch` with `dry_run` / `uh_cli_version` inputs.
+- Requires `GITOPS_TOKEN` repo secret (Gitea PAT with write+PR access to `home-kubernetes`).
+
 ## 2026-05-24 21:58 CEST — feat(fees): update adult monthly rates for 2026-05 through 2026-08

 - 2026-05: 700 → 450 CZK; 2026-06/07/08: 600 CZK (new months added).
@@ -4,41 +4,89 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co

 ## Project Status

-Flask-based financial management system for FUJ (Frisbee Ultimate Jablonec). Handles attendance-based fee calculation, Fio bank transaction sync, payment reconciliation, and a web dashboard.
+Financial management system for FUJ (Frisbee Ultimate Jablonec). Handles attendance-based fee calculation, Fio bank transaction sync, payment reconciliation, and a web dashboard.
+
+- **Go is the primary implementation** (`go/`). It is the version that is built, deployed and developed first.
+- **Python is legacy** (`legacy/`). The project was originally developed in Python (Flask); that version is kept runnable and in sync, but is considered legacy from now on.
+
+## Dual implementation rule
+
+Until the Python version is retired, **every new feature and every behaviour change must be implemented in both Go and Python**:
+
+1. Implement and test in Go first (`go/`).
+2. Mirror the change in the legacy Python code (`legacy/`), including its tests.
+3. Keep the two in parity: shared constants (fee rates, merged months, bank accounts, sheet IDs) must match on both sides, and the JSON API contract (`/api/adults`, `/api/juniors`, `/api/payments`) must stay identical. The HTML frontends are allowed to diverge.
+4. If a pure function's behaviour changes, add or update seeds in `legacy/scripts/_fixture_seeds.py`, run `make capture-fixtures`, and make sure `make go-test-all` passes. With both servers running, `make parity` diffs the live JSON APIs.
+
+Go-only or Python-only changes are fine for things that exist on one side only (build, tooling, HTML/CSS/JS, refactors with no behaviour change).
+
+### Deliberately Go-only features
+
+These exist only in the Go app on purpose. Do not port them to the legacy Python app, which is being phased out:
+
+- **Scheduled bank sync** — the Go server runs sync → infer → flush-cache by itself at the times in `SYNC_SCHEDULE`. Python's multi-worker gunicorn setup would need a cross-process lock for this, which is not worth building in code that is going away. In Python the sync still runs only from `/sync-bank` or the CLI.

 ## Key Constraints

 - **PII separation**: Member data (names, emails, payment info) must never be committed to git. Enforce config/data separation from day one.
- **Configuration**: External service IDs, credentials, and tunable parameters are centralized in `scripts/config.py`. Domain-specific constants (fees, merged months) stay in their respective modules.
+- **Configuration**: External service IDs, credentials, and tunable parameters are centralized in `go/internal/config/config.go` (mirrored in `legacy/scripts/config.py`). Domain-specific constants (fees, merged months) stay in their respective modules.

 ## Development Setup

-This project uses `uv` for dependency management.
+Go (primary): a recent Go toolchain (see `go/go.mod`) and `golangci-lint`.

 ```bash
-uv venv && uv sync
-source .venv/bin/activate
+make go-build     # builds bin/fuj
 ```

-Set `PYTHONPATH=scripts:.` when running scripts directly (the Makefile does this automatically).
+Python (legacy) uses `uv`; the project file and virtualenv live in `legacy/`.
+
+```bash
+make venv         # uv sync --project legacy  →  legacy/.venv
+```
+
+The Makefile sets `PYTHONPATH` (`legacy/scripts:legacy`) and `CREDENTIALS_PATH` (`.secret/fuj-management-bot-credentials.json` at the repo root) for the Python targets. Set both yourself when running Python scripts directly.

 ## Commands

+Go (primary):
+
 ```bash
-make web          # Start dashboard at http://localhost:5001
+make web-go         # Build and start dashboard at http://localhost:8080
+make go-build       # Build bin/fuj
+make go-test        # Unit tests (go test -race ./...)
+make go-parity      # Parity tests against the captured Python fixtures
+make go-test-all    # Both of the above
+make go-lint        # golangci-lint
+make go-run ARGS="fees"        # Run a subcommand: server, fees, reconcile, sync, infer, version
+make go-sync-debug [DAYS=N]    # Dry-run bank sync with debug logs
+```
+
+Python (legacy):
+
+```bash
+make web-py       # Start dashboard at http://localhost:5001 (make web is an alias)
 make web-debug    # Same with FLASK_DEBUG=1
 make test         # Run all tests (unittest discover)
 make test-v       # Tests with verbose output
 make fees         # Print fee report from attendance sheet
-make sync-2026    # Sync Fio bank transactions for 2026 to Google Sheets
+make sync-year    # Sync Fio transactions for the current year plus Nov-Dec of the previous one (YEAR=N to override)
 make infer        # Auto-fill Person/Purpose/Amount columns in payments sheet
 make reconcile    # Print balance report from Google Sheets data
-make image        # Build Docker image
+make image        # Build the legacy Python Docker image
+```
+
+Cross-implementation:
+
+```bash
+make capture-fixtures   # Regenerate go/tests/fixtures from the Python implementation
+make parity             # Diff /api/* between web-py (:5001) and web-go (:8080); both must be running
 ```

 Run a single test:
 ```bash
-PYTHONPATH=scripts:. python -m unittest tests.test_app.TestWebApp.test_adults_route
+cd go && go test ./internal/domain/reconcile -run TestName
+cd legacy && PYTHONPATH=scripts:. .venv/bin/python -m unittest tests.test_app.TestWebApp.test_adults_route
 ```

 ## Architecture
@@ -46,47 +94,77 @@ PYTHONPATH=scripts:. python -m unittest tests.test_app.TestWebApp.test_adults_ro
 ### Data flow

 ```
-Google Sheets (attendance) ──► attendance.py ──► reconcile() ──► Flask routes ──► templates/
-Google Sheets (payments)   ──► match_payments.py ──┘
-Fio Bank API               ──► sync_fio_to_sheets.py ──► Google Sheets (payments)
+Google Sheets (attendance) ──► attendance loader ──► reconcile ──► HTTP handlers ──► templates
+Google Sheets (payments)   ──► payments loader   ──┘
+Fio Bank API               ──► bank sync ──► Google Sheets (payments)
 ```

-### Key modules
+### Repository layout

- `app.py` — Flask app; routes for `/adults`, `/juniors`, `/payments`, `/sync-bank`, `/qr`, `/flush-cache`
- `scripts/attendance.py` — Fetches attendance CSV from Google Sheets, computes per-member per-month fees. Contains fee rate constants (`ADULT_FEE_DEFAULT`, `JUNIOR_FEE_DEFAULT`) and `ADULT_MERGED_MONTHS` / `JUNIOR_MERGED_MONTHS` dicts.
- `scripts/match_payments.py` — `reconcile()` matches transactions to members/months. `fetch_sheet_data()` reads the payments sheet. `fetch_exceptions()` reads the `exceptions` tab.
- `scripts/cache_utils.py` — Invalidation via Google Drive API `modifiedTime`; falls back to 5-minute TTL buckets when Drive API is unavailable. Cache files live in `tmp/`.
- `scripts/sync_fio_to_sheets.py` — Pulls Fio bank transactions and appends them to the payments Google Sheet.
- `scripts/infer_payments.py` — Fills in Person/Purpose/Inferred Amount columns using name-matching heuristics.
- `scripts/config.py` — All external IDs, paths, and tunable TTLs. Override via env vars (`CREDENTIALS_PATH`, `BANK_ACCOUNT`, `CACHE_TTL_SECONDS`).
+- `go/` — primary implementation (single binary `fuj`, templates and static assets embedded).
+- `legacy/` — legacy Python implementation (`app.py`, `scripts/`, `templates/`, `tests/`, `pyproject.toml`, `build/Dockerfile`).
+- `docs/` — documentation; `docs/plans/` holds plans and task lists.
+- `.gitea/workflows/` — CI: image builds on tag push, gitops image-update PR.
+
+### Key modules — Go (primary)
+
+- `go/cmd/fuj` — CLI entry point; subcommands `server`, `fees`, `reconcile`, `sync`, `infer`, `version`.
+- `go/cmd/parity` — diffs the JSON API of the Go and Python servers.
+- `go/internal/config` — sheet IDs, bank accounts, env-driven settings (`CREDENTIALS_PATH`, `CACHE_DIR`, `CACHE_TTL_SECONDS`, `CACHE_API_CHECK_TTL_SECONDS`, `MONTHS_TO_SHOW`, `SERVER_ADDR`, `LOG_LEVEL`, `FIO_API_TOKEN_NEW` / `FIO_API_TOKEN_OLD`, `SYNC_SCHEDULE`, `SYNC_TZ`).
+- `go/internal/domain` — pure logic: `fees` (rates, `CalculateFee`, `CalculateJuniorFee`), `reconcile`, `matching` (name matching, inference), `czech` (normalize, month parsing), `money`, `synch` (sync IDs).
+- `go/internal/io` — external systems: `attendance` (CSV export), `sheets`, `drive`, `fio` (API + transparent-page scraper), `cache` (file cache). Each has a fake for tests.
+- `go/internal/services` — `membership` (loading, merged months, fee and reconcile reports) and `banksync` (Fio sync + inference; `Runner` serialises manual and scheduled runs).
+- `go/internal/scheduler` — runs a job at fixed times of day; used by `fuj server` for the scheduled bank sync.
+- `go/internal/web` — routes for `/adults`, `/juniors`, `/payments`, `/sync-bank`, `/flush-cache`, `/qr`, `/version`, `/api/*`; `templates/` and `static/` are embedded.
+- `go/tests` — parity tests and the scrubbed fixture corpus captured from Python.
+
+### Key modules — Python (legacy)
+
+- `legacy/app.py` — Flask app; routes for `/adults`, `/juniors`, `/payments`, `/sync-bank`, `/qr`, `/flush-cache`, `/api/*`
+- `legacy/scripts/attendance.py` — Fetches attendance CSV from Google Sheets, computes per-member per-month fees. Contains fee rate constants (`ADULT_FEE_DEFAULT`, `JUNIOR_FEE_DEFAULT`) and `ADULT_MERGED_MONTHS` / `JUNIOR_MERGED_MONTHS` dicts.
+- `legacy/scripts/match_payments.py` — `reconcile()` matches transactions to members/months. `fetch_sheet_data()` reads the payments sheet. `fetch_exceptions()` reads the `exceptions` tab.
+- `legacy/scripts/cache_utils.py` — Invalidation via Google Drive API `modifiedTime`; falls back to 5-minute TTL buckets when Drive API is unavailable. Cache files live in `legacy/tmp/`.
+- `legacy/scripts/sync_fio_to_sheets.py` — Pulls Fio bank transactions and appends them to the payments Google Sheet.
+- `legacy/scripts/infer_payments.py` — Fills in Person/Purpose/Inferred Amount columns using name-matching heuristics.
+- `legacy/scripts/views.py` — View models shared by the HTML routes and the JSON API.
+- `legacy/scripts/config.py` — All external IDs, paths, and tunable TTLs. Override via env vars (`CREDENTIALS_PATH`, `CACHE_TTL_SECONDS`, `MONTHS_TO_SHOW`).
+- `legacy/scripts/capture_fixtures.py`, `scrub_fixtures.py`, `_fixture_seeds.py` — produce the scrubbed parity fixtures for Go.

 ### Member tiers

 Tiers are set in column B of the attendance sheet:
- `A` — Adult, pays fees (per-month rate from `ADULT_FEE_MONTHLY_RATE`, fallback 700 CZK for 2+ sessions; 200 CZK for exactly 1)
+- `A` — Adult, pays fees (per-month rate from `AdultFeeMonthlyRate` / `ADULT_FEE_MONTHLY_RATE`, fallback 600 CZK for 2+ sessions; 200 CZK for exactly 1, capped at the month's rate)
 - `J` — Junior attending adult practices; their attendance is merged with the junior sheet
 - `X` — Excluded from junior fee calculation (coaches, etc.)

 ### Fee calculation

- Adults: 0 sessions → 0, 1 session → 200 CZK, 2+ sessions → monthly rate (default 700 CZK)
+- Adults: 0 sessions → 0, 1 session → 200 CZK (never more than the month's rate, so a 0-rate month is free), 2+ sessions → monthly rate (default 600 CZK)
 - Juniors: 0 → 0, 1 → `"?"` (manual review required), 2+ → monthly rate (default 500 CZK)
 - Per-member per-month overrides live in the `exceptions` tab of the payments sheet (columns: Name, Period YYYY-MM, Amount, Note). Exceptions are keyed by `(normalize(name), normalize(period))`.

 ### Merged months

-`ADULT_MERGED_MONTHS` / `JUNIOR_MERGED_MONTHS` in `attendance.py` map a source month to a target month (e.g., `"2025-12": "2026-01"` merges December into January billing). The target month accumulates attendance from both months.
+`AdultMergedMonths` / `JuniorMergedMonths` in `go/internal/services/membership/sources.go` (`ADULT_MERGED_MONTHS` / `JUNIOR_MERGED_MONTHS` in `legacy/scripts/attendance.py`) map a source month to a target month (e.g., `"2025-12": "2026-01"` merges December into January billing). The target month accumulates attendance from both months.

 ### Caching

-`get_cached_data()` in `app.py` checks the Drive API `modifiedTime` before each request and serves a JSON file from `tmp/` when the sheet hasn't changed. Cache is warmed up at startup (`warmup_cache()`). Flush via `/flush-cache` (POST) or `flush_cache()`.
+Both implementations check the Drive API `modifiedTime` and serve a cached JSON file when the sheet hasn't changed, falling back to 5-minute TTL buckets when the Drive API is unavailable. Go: `go/internal/io/cache`, files in `tmp/go/` (`CACHE_DIR`). Python: `get_cached_data()` in `legacy/app.py`, files in `legacy/tmp/`, warmed up at startup (`warmup_cache()`). Flush via `/flush-cache` (POST).
+
+### Bank sync
+
+- Manual: open `/sync-bank` (both apps) or run `fuj sync` + `fuj infer` / `make sync-year` + `make infer`.
+- Scheduled (Go server only): at each time in `SYNC_SCHEDULE` (comma-separated `HH:MM`, default `04:00`; `off` disables) read in `SYNC_TZ` (default `Europe/Prague`). Nothing runs at startup. Manual and scheduled runs share one lock and never overlap. The page footer shows the last run since start and the next one.
+- Both use the same window: 1 November of the previous year to 31 December of the current year; rows are de-duplicated by Sync ID.
+- The schedule runs per process: keep the deployment at one replica, and note that a local `make web-go` with real credentials also syncs at the scheduled time unless `SYNC_SCHEDULE=off`.

 ### Payments sheet columns

 `Date | Amount | manual fix | Person | Purpose | Inferred Amount | Sender | VS | Message | Bank ID | Sync ID`

-`Person` and `Purpose` are written by `infer_payments.py` and can be manually corrected. `manual fix` column presence disables re-inference for that row. Multiple people or months are comma-separated in Person/Purpose.
+`Person` and `Purpose` are written by the inference step (`fuj infer` / `infer_payments.py`) and can be manually corrected. `manual fix` column presence disables re-inference for that row. Multiple people or months are comma-separated in Person/Purpose.
+
+**Non-fee payments ("other")**: a Purpose that starts with `other:` (case-insensitive) is attached to the person's "other transactions" and is not counted against any month. Inference produces this by itself when the bank message starts with `other:`: it copies the trimmed message into Purpose and does not look for a month (neither in the text nor from the date). A message that only contains `other:` later in the text is inferred the normal way. The shared check is `matching.IsOtherPurpose` / `is_other_purpose`.

 ### QR codes

@@ -1,26 +1,30 @@
-.PHONY: help fees match web web-py web-debug web-go go-build go-test go-test-all go-parity go-run go-sync-debug go-lint capture-fixtures parity image run sync sync-2026 test test-v docs
+.PHONY: help fees match web web-py web-debug web-go go-build go-test go-test-all go-parity go-run go-sync-debug go-lint capture-fixtures parity image run sync sync-2026 sync-year test test-v docs

-export PYTHONPATH := scripts:$(PYTHONPATH)
-VENV := .venv
-PYTHON := $(VENV)/bin/python3
-CREDENTIALS := .secret/fuj-management-bot-credentials.json
+# Legacy Python implementation lives in legacy/ (Go in go/ is primary).
+LEGACY := legacy
+export PYTHONPATH := $(CURDIR)/$(LEGACY)/scripts:$(CURDIR)/$(LEGACY):$(PYTHONPATH)
+VENV := $(LEGACY)/.venv
+PYTHON := $(CURDIR)/$(VENV)/bin/python3
+CREDENTIALS := $(CURDIR)/.secret/fuj-management-bot-credentials.json
+# Both implementations read CREDENTIALS_PATH; the Python default would resolve under legacy/.
+export CREDENTIALS_PATH ?= $(CREDENTIALS)

 GO_SRC := go
 GO_BIN := bin/fuj

-$(PYTHON): .venv/.last_sync
+$(PYTHON): $(VENV)/.last_sync

-.venv/.last_sync: pyproject.toml
-	uv sync
-	touch .venv/.last_sync
+$(VENV)/.last_sync: $(LEGACY)/pyproject.toml
+	uv sync --project $(LEGACY)
+	touch $(VENV)/.last_sync

 help:
 	@echo "Available targets:"
 	@echo "  make fees        - Calculate monthly fees from the attendance sheet"
 	@echo "  make match       - Match Fio bank payments against expected attendance fees"
-	@echo "  make web         - Start Python dashboard (alias for web-py, until M8)"
-	@echo "  make web-py      - Start Python dashboard on :5001"
-	@echo "  make web-go      - Build and start Go dashboard on :8080"
+	@echo "  make web         - Start legacy Python dashboard (alias for web-py)"
+	@echo "  make web-py      - Start legacy Python dashboard on :5001"
+	@echo "  make web-go      - Build and start Go dashboard on :8080 (primary)"
 	@echo "  make web-debug   - Start Python dashboard in debug mode"
 	@echo "  make go-build    - Build Go binary to bin/fuj"
 	@echo "  make go-test     - Run Go unit tests"
@@ -35,6 +39,7 @@ help:
 	@echo "  make sync        - Sync Fio transactions to Google Sheets"
 	@echo "  make sync-2025   - Sync Fio transactions for Q4 2025 (Oct-Dec)"
 	@echo "  make sync-2026   - Sync Fio transactions for the whole year of 2026"
+	@echo "  make sync-year [YEAR=N] - Sync Fio transactions for YEAR plus Nov-Dec of the year before (default: current year)"
 	@echo "  make sync-debug [DAYS=N] - Dry-run Python sync with Fio diagnostics and txn table (default DAYS=30)"
 	@echo "  make infer       - Infer payment details (Person, Purpose, Amount) in the sheet"
 	@echo "  make reconcile   - Show balance report using Google Sheets data"
@@ -44,21 +49,21 @@ help:
 	@echo "  make docs        - Serve documentation in a browser"

 venv:
-	uv sync
+	uv sync --project $(LEGACY)

 fees: $(PYTHON)
-	$(PYTHON) scripts/calculate_fees.py
+	$(PYTHON) $(LEGACY)/scripts/calculate_fees.py

 match: $(PYTHON)
-	$(PYTHON) scripts/match_payments.py
+	$(PYTHON) $(LEGACY)/scripts/match_payments.py

 web: web-py

 web-py: $(PYTHON)
-	$(PYTHON) app.py
+	$(PYTHON) $(LEGACY)/app.py

 web-debug: $(PYTHON)
-	FLASK_DEBUG=1 $(PYTHON) app.py
+	FLASK_DEBUG=1 $(PYTHON) $(LEGACY)/app.py

 go-build:
 	cd $(GO_SRC) && go build -trimpath \
@@ -82,10 +87,10 @@ capture-fixtures: $(PYTHON)
 	              infer_transaction_details format_date reconcile; do \
 	    dir="go/tests/fixtures/$$([[ $$func == reconcile ]] && echo reconcile || echo pure/$$func)"; \
 	    mkdir -p "$$dir"; \
-	    PYTHONPATH=scripts:. $(PYTHON) scripts/capture_fixtures.py --func $$func --all \
+	    $(PYTHON) $(LEGACY)/scripts/capture_fixtures.py --func $$func --all \
 	    | while IFS= read -r line; do \
 	        case_id=$$(echo "$$line" | $(PYTHON) -c "import sys,json; print(json.load(sys.stdin)['case'])"); \
-	        echo "$$line" | $(PYTHON) scripts/scrub_fixtures.py > "$$dir/$${case_id}.json"; \
+	        echo "$$line" | $(PYTHON) $(LEGACY)/scripts/scrub_fixtures.py > "$$dir/$${case_id}.json"; \
 	    done; \
 	    echo "  $$func done"; \
 	done
@@ -112,34 +117,38 @@ image:
 		--build-arg GIT_TAG=$$(git describe --tags --always 2>/dev/null || echo "untagged") \
 		--build-arg GIT_COMMIT=$$(git rev-parse --short HEAD) \
 		--build-arg BUILD_DATE=$$(date -u +%Y-%m-%dT%H:%M:%SZ) \
-		-f build/Dockerfile .
+		-f $(LEGACY)/build/Dockerfile $(LEGACY)

 run:
 	docker run -it --rm -p 5001:5001 -v $(CURDIR)/.secret:/app/.secret:ro fuj-management:latest

 sync: $(PYTHON)
-	$(PYTHON) scripts/sync_fio_to_sheets.py --credentials .secret/fuj-management-bot-credentials.json
+	$(PYTHON) $(LEGACY)/scripts/sync_fio_to_sheets.py --credentials $(CREDENTIALS)

 sync-2025: $(PYTHON)
-	$(PYTHON) scripts/sync_fio_to_sheets.py --credentials .secret/fuj-management-bot-credentials.json --from 2025-10-01 --to 2025-12-31 --sort-by-date
+	$(PYTHON) $(LEGACY)/scripts/sync_fio_to_sheets.py --credentials $(CREDENTIALS) --from 2025-10-01 --to 2025-12-31 --sort-by-date

 sync-2026: $(PYTHON)
-	$(PYTHON) scripts/sync_fio_to_sheets.py --credentials .secret/fuj-management-bot-credentials.json --from 2026-01-01 --to 2026-12-31 --sort-by-date
+	$(PYTHON) $(LEGACY)/scripts/sync_fio_to_sheets.py --credentials $(CREDENTIALS) --from 2026-01-01 --to 2026-12-31 --sort-by-date
+
+YEAR ?= $(shell date +%Y)
+sync-year: $(PYTHON)
+	$(PYTHON) $(LEGACY)/scripts/sync_fio_to_sheets.py --credentials $(CREDENTIALS) --from $(shell expr $(YEAR) - 1)-11-01 --to $(YEAR)-12-31 --sort-by-date

 sync-debug: $(PYTHON)  ## Dry-run Python sync with Fio diagnostics and txn table (default DAYS=30)
-	$(PYTHON) scripts/sync_fio_to_sheets.py --credentials .secret/fuj-management-bot-credentials.json --days $(DAYS) --dry-run --print-fio-table
+	$(PYTHON) $(LEGACY)/scripts/sync_fio_to_sheets.py --credentials $(CREDENTIALS) --days $(DAYS) --dry-run --print-fio-table

 infer: $(PYTHON)
-	$(PYTHON) scripts/infer_payments.py --credentials $(CREDENTIALS)
+	$(PYTHON) $(LEGACY)/scripts/infer_payments.py --credentials $(CREDENTIALS)

-reconcile:  ## Match payments against attendance
-	export PYTHONPATH=$(PYTHONPATH):$(CURDIR)/scripts && $(PYTHON) scripts/match_payments.py --credentials $(CREDENTIALS)
+reconcile: $(PYTHON) ## Match payments against attendance
+	$(PYTHON) $(LEGACY)/scripts/match_payments.py --credentials $(CREDENTIALS)

 test: $(PYTHON) ## Run web application tests
-	export PYTHONPATH=$(PYTHONPATH):$(CURDIR)/scripts:$(CURDIR) && $(PYTHON) -m unittest discover tests
+	cd $(LEGACY) && $(PYTHON) -m unittest discover tests

 test-v: $(PYTHON) ## Run tests with verbose output
-	export PYTHONPATH=$(PYTHONPATH):$(CURDIR)/scripts:$(CURDIR) && $(PYTHON) -m unittest discover -v tests
+	cd $(LEGACY) && $(PYTHON) -m unittest discover -v tests

 docs: ## Serve documentation locally
 	@echo "Starting documentation server at http://localhost:8000"
@@ -4,6 +4,8 @@ Welcome to the documentation for the FUJ Management application.

 This project automates financial and operational management for the FUJ (Frisbee Ultimate Jablonec) club.

+> **Go is the primary implementation** (`go/`). The project was originally developed in Python; that version now lives in `legacy/` and is considered legacy. New features are still built in both. Most guides below predate this change and describe the Python version with its old paths (`app.py`, `scripts/` are now `legacy/app.py`, `legacy/scripts/`).
+
 ## Navigation

 Use the sidebar to explore the documentation:
@@ -182,7 +182,7 @@ fuj-management/
 │
 ├── .gitea/workflows/
 │   ├── build.yaml                  # CI: build + push Docker image
-│   └── kubernetes-deploy.yaml      # CD: deploy to K8s cluster
+│   └── gitops-update.yaml          # CD: open image-update PR in home-kubernetes
 │
 ├── .secret/                        # (gitignored) API credentials
 ├── docs/                           # Project documentation
@@ -129,32 +129,27 @@ The project uses two Gitea Actions workflows:

 **Tag resolution**: Uses the git tag name. For manual dispatch, uses the provided input.

-#### 2. Deploy to Kubernetes (`kubernetes-deploy.yaml`)
+#### 2. GitOps image update (`gitops-update.yaml`)

 **Triggers**:
- Push to any branch
- Manual dispatch
+- Completion of a successful "Build and Push" run
+- Manual dispatch (with `tag`, `dry_run` and `uh_cli_version` inputs)

 **Steps**:
-1. Checkout code
-2. Install kubectl
-3. Retrieve Kanidm token from HashiCorp Vault:
-   - Authenticate to Vault via AppRole (`VAULT_ROLE_ID` / `VAULT_SECRET_ID`)
-   - Fetch API token from `secret/data/gitea/gitea-ci`
-4. Exchange API token for K8s OIDC token via Kanidm:
-   - POST to `https://idm.home.hrajfrisbee.cz/oauth2/token`
-   - Token exchange using `urn:ietf:params:oauth:grant-type:token-exchange`
-5. Configure kubectl with the OIDC token
-6. Run `kubectl auth whoami` and `kubectl get ns` (deploy commands are commented out — WIP)
+1. Install `tea` and `uh-cli`
+2. Resolve the image tag of the Go image that was just built
+3. Open a PR in `kacerr/home-kubernetes` bumping the `fuj-management` Deployment (namespace `fuj`) to that image
+
+The cluster picks the change up once that PR is merged. CI does not talk to the cluster directly.
+
+> The earlier `kubernetes-deploy.yaml` workflow (Vault → Kanidm → `kubectl`) was removed on 2026-10-08. It never deployed anything and printed credentials to the job log.

 **Required secrets**:

 | Secret | Purpose |
 |--------|---------|
 | `REGISTRY_TOKEN` | Docker registry authentication |
-| `VAULT_ROLE_ID` | HashiCorp Vault AppRole role ID |
-| `VAULT_SECRET_ID` | HashiCorp Vault AppRole secret ID |
-| `K8S_CA_CERT` | Kubernetes cluster CA certificate |
+| `GITOPS_TOKEN` | Gitea token with write and PR access to `home-kubernetes` |

 ### Infrastructure Topology

@@ -164,8 +159,7 @@ Gitea (git push / tag)
   ├── build.yaml → Docker Build → Gitea Container Registry
   │                                  (gitea.home.hrajfrisbee.cz)
   │
-   └── kubernetes-deploy.yaml → Vault → Kanidm → K8s Cluster
-                                                   (192.168.0.31:6443)
+   └── gitops-update.yaml → PR in home-kubernetes → K8s Cluster
 ```

 This is a self-hosted infrastructure stack:
@@ -0,0 +1,112 @@
+# Plan: Gitea Action to open a gitops image-update PR for fuj-management
+
+## Context
+
+The Go image of this app is built and pushed by the `build-go` job in
+[.gitea/workflows/build.yaml](.gitea/workflows/build.yaml), tagged
+`gitea.home.hrajfrisbee.cz/kacerr/fuj-management:<git-tag>-go` (e.g. `0.37-go`).
+
+Kubernetes manifests live in a **separate** repo,
+`gitea.home.hrajfrisbee.cz/kacerr/home-kubernetes`. Today, bumping the image in
+the `fuj-management` Deployment (namespace `fuj`) is a manual edit there.
+
+We want CI to automate that bump: when a new Go image is built, open a PR against
+`home-kubernetes` that swaps the image to the freshly built tag — using the
+`uh-cli gitops deployment update` command. The user reviews/merges that PR in
+Gitea (matching the existing branch-per-change, merge-in-browser workflow).
+
+Decisions confirmed with the user:
+- **Separate workflow file** (not a job inside build.yaml).
+- **New `GITOPS_TOKEN` secret** for home-kubernetes write + PR access.
+- **uh-cli version pinned with a default, overridable via env/var/input.**
+
+## How uh-cli works (from `/Users/jan.novak/srv/go/uh-cli/docs/`)
+
+- `uh-cli gitops deployment update` clones `--git-repo`, walks `--git-path`
+  recursively for a `kind: Deployment` whose `metadata.name`/`namespace` match,
+  edits the first container image surgically, commits on a new branch
+  `gitops/update-<name>-<timestamp>`, pushes, and **opens the PR itself** via
+  `tea pr create`. PR base is always `main`; title/body are hardcoded (no flags).
+- Requires on PATH: `git` and `tea` (tea only for the PR flow; `--force` skips it).
+- Auth: token embedded in the `--git-repo` URL (`https://user:TOKEN@host/...`);
+  `tea login add` for PR creation; git identity via `git config`/env vars.
+- `--dry-run` prints the unified diff and makes no git changes. Global `-v`
+  (placed **before** the subcommand) enables debug logging on stderr.
+- Release binaries are named `uh-cli-<version>-linux-amd64` (version includes the
+  `v`), attached to the Gitea release. Latest tag today is **`v0.1.0`**.
+
+## Change: new workflow `.gitea/workflows/gitops-update.yaml`
+
+Triggers:
+- `workflow_run` on `workflows: ["Build and Push"]`, `types: [completed]`, gated
+  to `conclusion == 'success'` — auto-fires after the image build succeeds.
+- `workflow_dispatch` with inputs: `tag` (git tag without the `-go` suffix, e.g.
+  `0.37`), `dry_run` (boolean, default false), `uh_cli_version` (optional override).
+
+Single job `gitops-pr`, `runs-on: ubuntu-latest`, in a `container: ubuntu:latest`
+for a hermetic install (matches the uh-cli CI doc pattern). Steps:
+
+1. **Install git, curl, ca-certificates, tea** — apt-get + download tea
+   `0.9.2` from `gitea.com/gitea/tea/releases/...` to `/usr/local/bin/tea`.
+2. **Install uh-cli** — download
+   `https://gitea.home.hrajfrisbee.cz/kacerr/uh-cli/releases/download/${UH_CLI_VERSION}/uh-cli-${UH_CLI_VERSION}-linux-amd64`
+   to `/usr/local/bin/uh-cli`.
+   `UH_CLI_VERSION: ${{ inputs.uh_cli_version || vars.UH_CLI_VERSION || 'v0.1.0' }}`.
+3. **Resolve image tag** — if `workflow_dispatch`, use `inputs.tag`; else use
+   `github.event.workflow_run.head_branch` (the pushed tag name). Output
+   `gitea.home.hrajfrisbee.cz/${{ github.repository }}:<tag>-go`.
+4. **Configure git identity** — `git config --global user.name/email` for the bot.
+5. **Authenticate tea** — `tea login add --name ci --url https://gitea.home.hrajfrisbee.cz --token "$GITEA_TOKEN"`.
+6. **Open image-update PR** — run, with `--dry-run` appended only when the
+   dispatch `dry_run` input is true:
+   ```
+   uh-cli -v gitops deployment update \
+     --deployment-name fuj-management \
+     --deployment-namespace fuj \
+     --set-image "<resolved image>" \
+     --git-repo "https://fuj-gitops-bot:${GITEA_TOKEN}@gitea.home.hrajfrisbee.cz/kacerr/home-kubernetes" \
+     --git-path gitops/home-kubernetes
+   ```
+
+`GITEA_TOKEN` is sourced from `secrets.GITOPS_TOKEN` at job level.
+
+Job-level guard: `if: ${{ github.event_name == 'workflow_dispatch' || github.event.workflow_run.conclusion == 'success' }}`.
+
+## Prerequisites (user must set up in Gitea — call out in handoff)
+
+1. **Create `GITOPS_TOKEN` secret** in the `fuj-management` repo: a Gitea token
+   for a user (`fuj-gitops-bot` or `kacerr`) that has **write + pull-request**
+   access to `kacerr/home-kubernetes`. The username in the `--git-repo` URL must
+   match that token's owner (adjust `fuj-gitops-bot` if using `kacerr`).
+2. **uh-cli `v0.1.0` release assets must exist** (the `uh-cli-v0.1.0-linux-amd64`
+   binary attached to the release). If not yet published, cut that release in the
+   uh-cli repo first, or set `UH_CLI_VERSION` to a published tag.
+3. **Confirm the manifest path**: `--git-path gitops/home-kubernetes` must contain
+   the `fuj-management` Deployment; `--deployment-namespace fuj` disambiguates.
+   Cannot verify from this repo — verify against home-kubernetes (narrow the path
+   if uh-cli reports an ambiguity error).
+
+## Files
+
+- **New**: `.gitea/workflows/gitops-update.yaml` (the workflow above).
+- After it works: prepend a `CHANGELOG.md` entry; save this plan to
+  `docs/plans/<ts>-gitops-pr-action.md` per CLAUDE.md convention.
+
+## Branching
+
+Feature work → branch `feat/gitops-pr-action` off `main`, commit with the
+`Co-Authored-By` trailer, push with `-u`, open the MR with
+`tea pr create --base main --head feat/gitops-pr-action`. Do not merge from CLI.
+
+## Verification
+
+1. **Dry run (manual)**: trigger `gitops-update.yaml` via workflow_dispatch with
+   `tag=0.37`, `dry_run=true`. Confirm logs show the unified diff (image line
+   `…:0.37-go`) and `-v` debug milestones; **no PR** is created.
+2. **Real run (manual)**: re-trigger with `dry_run=false`. Confirm a PR appears in
+   `home-kubernetes` against `main` with the image bump, and the PR URL is printed.
+3. **Auto-trigger**: push a new git tag to fuj-management → `Build and Push`
+   completes → `gitops-update` fires via `workflow_run` and opens the PR.
+   (Note: `workflow_run`/`head_branch` behavior depends on this Gitea/act_runner
+   version; if it doesn't fire, manual `workflow_dispatch` is the fallback and the
+   plan still delivers the core capability.)
@@ -0,0 +1,174 @@
+# Pre-feature cleanup — task list
+
+Findings from a full repo audit on 2026-10-08, written up as tasks to clear
+before new feature work starts. Companion to the Go rewrite tracker,
+[2026-05-03-2349-go-backend-rewrite-progress.md](2026-05-03-2349-go-backend-rewrite-progress.md).
+
+## State at audit time
+
+- Two full implementations live side by side: Flask (`app.py`, `scripts/`,
+  `templates/`) and Go (`go/`). Recent changes were made in both.
+- Update 2026-10-08: the Python code was moved to `legacy/` after this audit.
+  Python paths below are relative to `legacy/` (`build/Dockerfile` is now
+  `legacy/build/Dockerfile`).
+- Python tests pass (32 tests). Go unit tests and the parity suite pass.
+  Go lint could not run (see T7).
+- The gitops workflow bumps the cluster deployment to the `-go` image, so Go
+  appears to be what is deployed. This was not verified against the cluster.
+- `CLAUDE.md` and all docs outside `docs/plans/` describe a Python-only
+  project. The rewrite tracker stops at M6; M7 and M8 are untouched.
+
+## How to use
+
+- Tick a checkbox when the task's PR or commit lands and append the SHA.
+- Tasks in "Fix first" are small and independent of each other and of the
+  cutover decision. Do them in any order.
+- T5 is a decision. Several cleanup tasks become unnecessary once it is made;
+  they are marked "moot if Python is retired".
+
+---
+
+## Fix first
+
+- [x] **T1** Remove the secret leak in `.gitea/workflows/kubernetes-deploy.yaml`.
+  Workflow deleted on 2026-10-08. Still open for the owner: rotate the
+  credentials and remove the now-unused repo secrets (see below).
+  - It runs on every push to every branch and deploys nothing.
+  - It echoes the raw Vault login response, the Kanidm token response and the
+    OIDC token response body to the log, and dumps the environment twice.
+  - It uses `--insecure-skip-tls-verify=true`.
+  - Delete or disable the workflow. Rotate the Vault AppRole secret and the
+    Kanidm API token if anyone else can read the CI logs.
+  - After deletion the repo secrets `VAULT_ROLE_ID`, `VAULT_SECRET_ID` and
+    `K8S_CA_CERT` are unused and can be removed. Old job logs still contain
+    the leaked tokens until they are deleted or expire.
+- [x] **T2** Confirm the fee rates for 2026-09 onward. Done 2026-10-08:
+  adult default 600, 2026-07/08 at 0, 2026-09 to 2026-12 at 600. Junior
+  rates were not changed.
+  - `ADULT_FEE_MONTHLY_RATE` ends at 2026-08 in `scripts/attendance.py` and
+    `go/internal/domain/fees/fees.go`.
+  - September and October 2026 are billed at the defaults: 700 CZK adults,
+    500 CZK juniors.
+  - If those are not the intended rates, add the months in both files.
+- [x] **T3** Done 2026-10-08, extended: both dashboards now sync the
+  current year plus November–December of the previous one. Original task:
+  remove the hardcoded 2026 window from Python `/sync-bank`
+  (`app.py`, the `sync_to_sheets` call with `2026-01-01` / `2026-12-31`).
+  - It stops picking up transactions on 2027-01-01. Go already uses the
+    current year.
+  - Same applies to the `sync-2026` Makefile target.
+  - Moot if Python is retired before then.
+- [ ] **T4** Remove member names from tracked files (PII rule in `CLAUDE.md`).
+  - `CHANGELOG.md` line 29 names a member in a fix description.
+  - `tests/test_match_payments.py`, `tests/test_reconcile_exceptions.py` and
+    `go/internal/domain/reconcile/reconcile_test.go` use names that may be
+    real. Check them and replace with obviously fictional ones.
+  - Three files in `docs/plans/` contain the same names:
+    `2026-05-05-1717-payment-person-name-canonicalization.md`,
+    `2026-05-06-1626-infer-payments-junior-roster.md`,
+    `2026-05-11-2353-fill-first-multi-month-allocation.md`.
+  - The parity fixtures under `go/tests/fixtures/` are scrubbed and need no
+    change.
+  - Decide whether the names also need removing from git history.
+
+## Decide before new features
+
+- [ ] **T5** Decide how to finish the Python → Go cutover (M7 and M8 in the
+  rewrite tracker).
+  - Recommended: declare Go primary now, freeze Python, run one month-end
+    comparison of the balance report on both sides, then delete Python.
+  - Until this is done, every feature has to be written twice.
+  - Confirm first that the cluster really runs the `-go` image.
+- [ ] **T6** Add a test job to CI.
+  - `.gitea/workflows/build.yaml` only builds images on tag push. Nothing
+    runs tests.
+  - Run `go test -race ./...`, the parity suite (`-tags=parity`) and
+    `golangci-lint` on pull requests.
+  - Stop building the Python image on every tag once Python is retired.
+- [ ] **T7** Fix `make go-lint`.
+  - `go/.golangci.yml` is in the v1 config format. golangci-lint 2.12 refuses
+    to load it ("unsupported version of the configuration").
+  - Migrate the config to v2 and pin the linter version used in CI.
+- [ ] **T8** Protect the side-effectful routes.
+  - Neither app has any authentication.
+  - `GET /sync-bank` writes to the payments sheet, so a link prefetcher or
+    crawler can trigger a sync. Change it to POST with a confirmation page,
+    as `/flush-cache` already does.
+  - Confirm that the ingress enforces access control, or add it in the app.
+  - The Go server uses `http.ListenAndServe` with no read, write or idle
+    timeouts (`go/internal/web/server.go`). Use an `http.Server` with
+    timeouts.
+- [ ] **T9** Move fee rates and merged months out of code.
+  - Today a rate change needs a code change in two languages and a release.
+  - Candidate: a tab in the payments sheet, read the same way as
+    `exceptions`.
+  - This also removes the cause of T2.
+
+## Cleanup
+
+- [x] **T10** Rewrite `CLAUDE.md` for the current state: Go commands,
+  architecture and key modules, and which backend is primary. Done with the
+  move of Python to `legacy/`.
+- [ ] **T11** Collapse the documentation into one set.
+  - `docs/by-claude-opus/`, `docs/by-gemini/` and the top-level docs overlap,
+    date from February–March 2026 and predate the Go rewrite.
+  - Update `docs/_sidebar.md` and `docs/README.md` to match.
+- [ ] **T12** Update the rewrite tracker.
+  - M6.7 is unchecked although the changelog records it as done.
+  - M7.1 and M8.4 refer to a `docker-compose.yml` that does not exist.
+- [ ] **T13** Remove leftovers: `.agent/rules.md` (Antigravity config) and
+  `prompts/`.
+- [ ] **T14** Prune merged branches: 42 local and 44 remote branches are
+  fully merged into `main`.
+- [ ] **T15** Clean up `.claude/settings.json`.
+  - It is tracked and contains absolute paths under one user's home
+    directory and one-off commands.
+  - Keep only shared, generic permissions there; move the rest to
+    `.claude/settings.local.json`, which is already ignored.
+- [ ] **T16** Align versions.
+  - `pyproject.toml` says `0.10`; git tags are at `0.39`.
+  - `build/Dockerfile` pip-installs unpinned packages and ignores `uv.lock`.
+  - `go.mod` and `go/build/Dockerfile` are on Go 1.26; the local toolchain is
+    1.27.
+  - Dependencies on both sides are a few months behind.
+  - The Python items are moot if Python is retired.
+- [ ] **T17** Stop the Python tests from calling live Google APIs.
+  - `warmup_cache()` runs at import of `app.py`, so `make test` makes real
+    Drive and Sheets read calls and needs the credentials file.
+  - Moot if Python is retired.
+- [ ] **T18** Set the time zone in the Go container. Partly addressed
+  2026-10-08: the binary now embeds the zone database and the scheduled sync
+  uses `SYNC_TZ`; the "current month" logic below is still open.
+  - The image has no time zone configured, so `time.Now()` is UTC and the
+    "current month" flips one to two hours late at month boundaries.
+  - The Python image sets `Europe/Prague`.
+- [ ] **T19** Decide where `fujarna/` lives.
+  - `fujarna/project.md` is untracked. It is a brief for a separate
+    tournament website and shares almost nothing with this codebase.
+  - Options: its own repository, or a clearly separate Go module here.
+- [ ] **T20** Add tests for the untested Go packages: `cmd/fuj`,
+  `internal/io/sheets`, `internal/io/drive`, `internal/config` (about 590
+  lines in total).
+
+## Found during validation of the `legacy/` move
+
+Plan: [2026-10-08-1103-api-parity-vs-months-to-show.md](2026-10-08-1103-api-parity-vs-months-to-show.md).
+
+- [x] **T21** Go rendered numeric VS cells in exponent form
+  (`2.609767878e+09`). Sheet text cells now go through `sheets.CellString`.
+- [x] **T22** Python `/api/adults` and `/api/juniors` did not return
+  `months_to_show`. Backported; `make parity` reports 3/3 routes matching.
+- [x] **T23** Write VS to the payments sheet as text. Both sync
+  implementations use `USER_ENTERED`, so Sheets stored VS as a number and
+  dropped leading zeros. New rows now carry a text marker; existing rows are
+  left as they are and are read correctly either way.
+
+## Features added since the audit
+
+- 2026-10-08 — Scheduled bank sync in the Go server, deliberately Go-only.
+  Plan: [2026-10-08-1216-scheduled-bank-sync.md](2026-10-08-1216-scheduled-bank-sync.md).
+  It also added a lock so two syncs cannot overlap (relevant to T8).
+
+## Notes & decisions
+
+(Add entries as you go. Format: `YYYY-MM-DD — short note`.)
@@ -0,0 +1,112 @@
+# Fix the two Go/Python parity differences
+
+## Context
+
+Running `make parity` against both containers on 2026-10-08 reported
+`0/3 routes match`. Two causes, neither related to the move to `legacy/`:
+
+1. **VS rendered in scientific notation by Go.** The payments sheet is read
+   with `UNFORMATTED_VALUE`, so a numeric VS cell arrives as `float64`. Go
+   stringifies cells with `fmt.Sprint`, which prints any float ≥ 1e6 in
+   exponent form (`2.609767878e+09`). Python already converts integer floats
+   to plain digits for VS (`get_str` in `fetch_sheet_data`). VS must always be
+   a plain string.
+2. **`months_to_show` missing from the Python JSON API.** Go returns it in
+   `/api/adults` and `/api/juniors` (and it is `required` in the committed
+   schemas). Python already has the feature in its HTML pages
+   (`MONTHS_TO_SHOW` is passed to the templates) but never added the key to
+   the API responses. Backport the key so the API contract matches.
+
+Outcome: `make parity` reports 3/3 routes matching.
+
+## Branching
+
+Both are bug fixes that touch `legacy/` paths, so they depend on the
+uncommitted `feat/python-to-legacy` work. Commit that branch first (still
+awaiting confirmation), then branch `fix/api-parity-vs-months-to-show` from
+it, with one commit per task. Open the MR with `tea` after the legacy move is
+merged, or target it at that branch.
+
+## Task 1 — VS (and other text cells) always a plain string in Go
+
+Root cause is `getVal` in `parseTransactionRows`
+(`go/internal/services/membership/sources.go`, the `fmt.Sprint(row[i])`
+closure). The same pattern exists in `get` in
+`go/internal/services/banksync/infer.go`.
+
+1. Add `CellString(v any) string` to `go/internal/io/sheets` (new small file
+   `cell.go`; both services already import this package):
+   - `nil` → `""`
+   - `float64` → `strconv.FormatFloat(x, 'f', -1, 64)` (never exponent form;
+     `2609767878.0` → `"2609767878"`, `12.5` → `"12.5"`)
+   - `string` → unchanged
+   - anything else → `fmt.Sprint(v)`
+2. Use it in `getVal` in `sources.go`. This fixes VS and protects the other
+   text columns (Message, Bank ID, Sender, …) from the same failure.
+   - `getVal` currently returns `"<nil>"` for nil cells and the inferred-amount
+     code checks for that literal; simplify that check to `iv != ""`.
+   - Leave `getRaw`/`FormatDate` and `parseFloat` for Date and Amount as they
+     are — those must stay numeric.
+3. Use it in `get` in `banksync/infer.go` (keeping the `TrimSpace`), so
+   inference sees the same text the dashboard shows.
+4. Tests:
+   - `go/internal/io/sheets/cell_test.go`: table test for `CellString`
+     (large integer float, small integer float, fractional, string with
+     leading zeros, nil).
+   - Extend `TestLoadTransactions` in
+     `go/internal/services/membership/sources_test.go` with a row whose VS is
+     `2609767878.0` and whose Bank ID is an 11-digit float; assert plain
+     digit strings.
+5. Python: no code change needed — `get_str` already does this for VS. Add one
+   regression test for `fetch_sheet_data` in
+   `legacy/tests/test_match_payments.py` (mock the Sheets service, numeric VS
+   cell → `"2609767878"`) so the two sides are pinned to the same behaviour.
+
+Not included (note for later): VS is *written* to the sheet with
+`USER_ENTERED` by both sync implementations, so Sheets stores it as a number
+and drops leading zeros. Fixing that means writing VS as text and is a
+separate change to the sheet's data.
+
+## Task 2 — backport `months_to_show` to the Python JSON API
+
+`legacy/app.py` only; `MONTHS_TO_SHOW` is already imported there.
+
+1. In `api_adults()` and `api_juniors()`, add the key to the response:
+   build `out = _unwrap_view_model_for_api(vm)`, set
+   `out["months_to_show"] = MONTHS_TO_SHOW`, return `jsonify(out)`.
+   - Do not add it inside `build_*_view_model` or `_unwrap_view_model_for_api`:
+     the HTML routes already pass `months_to_show=` to `render_template`
+     alongside `**vm`, and a duplicate key would raise `TypeError`.
+   - `/api/payments` is unchanged; Go does not return the key there.
+2. Tests in `legacy/tests/test_app.py`:
+   - Add `"months_to_show"` to the expected key list used by
+     `test_api_adults` / `test_api_juniors` (the tuple near the top of the
+     file), and assert the value is an `int`.
+3. Go: no change. The key and schemas
+   (`go/tests/fixtures/api-schema/{adults,juniors}.schema.json`) already
+   contain it.
+
+## Wrap-up
+
+- `CHANGELOG.md` entry at the top (after confirmation it works), per repo
+  convention.
+- Copy this plan to
+  `docs/plans/2026-10-08-HHMM-api-parity-vs-months-to-show.md`, per the repo's
+  plan-location rule.
+- Add both items to
+  `docs/plans/2026-10-08-1026-pre-feature-cleanup-tasks.md` as done tasks so
+  the audit list stays complete.
+
+## Verification
+
+1. `make go-test-all` — unit tests (including the new ones) and parity
+   fixtures pass.
+2. `make test` — Python tests pass, including the new API key and VS tests.
+3. `cd go && go test ./internal/web/api/...` — schema golden test still
+   matches (no schema change expected).
+4. End to end: start `make web-py` and `make web-go`, then `make parity`;
+   expect `3/3 routes match`. Alternatively repeat the two-container run used
+   to find the bugs (`make image`, Go image from `go/build/Dockerfile`, then
+   `go run ./cmd/parity -py … -go …`).
+5. Open `/payments` on :8080 and check the affected transaction's VS shows as
+   plain digits.
@@ -0,0 +1,134 @@
+# Scheduled bank sync in the Go server (Go only)
+
+## Context
+
+Bank synchronization only runs when someone opens `/sync-bank`; the payments
+sheet is as fresh as the last click. The Go server should run the same
+sync → infer → flush-cache sequence by itself on a configured schedule,
+defaulting to once a day.
+
+Decisions already made:
+
+- **Go only.** Deliberately not implemented in the legacy Python app, which is
+  being phased out (gunicorn's multi-worker model would also need a
+  cross-process lock). This is recorded as an explicit exception to the dual
+  implementation rule.
+- **Schedule format:** one or more times of day. On by default, once a day.
+
+## Behaviour
+
+- `SYNC_SCHEDULE` — comma-separated `HH:MM` times, default `04:00`.
+  `off` disables the scheduler. An invalid value makes `fuj server` exit at
+  startup with a clear error.
+- `SYNC_TZ` — IANA zone the times are read in, default `Europe/Prague`.
+  The binary embeds the zone database (`import _ "time/tzdata"`), because the
+  Alpine image has none.
+- At each scheduled time the server runs exactly what `/sync-bank` runs
+  (`banksync.DefaultWindow`, `SyncToSheets`, `InferPayments`, cache flush),
+  with a 10-minute timeout, and logs start, result and row counts via `slog`.
+- Nothing runs at startup; a restart only recomputes the next run time.
+- A scheduled run and a manual `/sync-bank` can no longer overlap: both go
+  through one mutex. If a sync is already running, the manual page shows
+  "a sync is already running" and a scheduled run is skipped with a log line.
+  (This also closes today's gap where two overlapping manual runs could append
+  the same rows.)
+- The footer of every page shows the last sync since the server started:
+  time, trigger (scheduled / manual), ok or failed, and the next scheduled
+  run. Status is in memory only and resets on restart.
+
+## Implementation
+
+Branch `feat/scheduled-bank-sync` off `main`; MR via `tea`.
+
+1. **Config** — `go/internal/config/config.go`
+   - Add `SyncSchedule []TimeOfDay` and `SyncLocation *time.Location` to
+     `Config`.
+   - Add `ParseSyncSchedule(s string) ([]TimeOfDay, error)` (`"off"` → empty,
+     sorted, de-duplicated, rejects anything not `HH:MM`) and a
+     `LoadSyncSchedule() (…, error)` reading `SYNC_SCHEDULE` / `SYNC_TZ`.
+     `Load()` keeps its signature; `serverCmd` calls the new loader and exits
+     on error.
+   - New `config_test.go` for the parser (first tests in this package).
+
+2. **Scheduler** — new package `go/internal/scheduler`
+   - `Next(now time.Time, times []TimeOfDay, loc *time.Location) time.Time` —
+     pure; builds candidates with `time.Date` in `loc` for today and tomorrow
+     and returns the earliest one strictly after `now` (handles DST days).
+   - `Run(ctx, times, loc, logger, job func(context.Context))` — loop:
+     compute `Next`, wait on a timer or `ctx.Done()`, call `job`.
+   - Tests: `Next` table test (before/after today's time, multiple times,
+     midnight rollover, the two DST switch days in Europe/Prague); `Run` with
+     a cancelled context returns.
+
+3. **Sync runner with lock and status** — new
+   `go/internal/services/banksync/runner.go`
+   - `Runner` wraps the existing sync+infer function (moved out of the
+     closure in `go/cmd/fuj/main.go`) with a `sync.Mutex` (`TryLock`) and
+     records `Status{Started, Finished, Trigger, Err}`.
+   - `Run(ctx, trigger string, out io.Writer) error` returns `ErrBusy` when a
+     run is in progress. `Last() (Status, bool)` for display.
+   - Tests with a fake job: status recorded, error recorded, second
+     concurrent call gets `ErrBusy`.
+
+4. **Wiring** — `go/cmd/fuj/main.go`
+   - Add `import _ "time/tzdata"`.
+   - Build one `Runner`; `ActionHandlers.BankSync` calls
+     `runner.Run(ctx, "manual", out)` (signature unchanged, so
+     `TestServeSync` keeps working).
+   - If the schedule is non-empty, start `go scheduler.Run(...)` whose job
+     calls `runner.Run(ctx, "scheduled", &buf)` with a 10-minute timeout, then
+     `sources.FlushCache()`, and logs the outcome. Log the schedule and next
+     run at startup, or "scheduled sync disabled".
+
+5. **Display** — `go/internal/web`
+   - `ActionHandlers` gains optional `SyncInfo func() string` (last + next run
+     as one line). `PageData` gains `SyncInfo string`; add a small
+     `h.page(active)` helper in `html_handler.go` and use it where
+     `PageData{Active: …, Build: h.build}` is built today.
+   - `templates/partials/footer.tmpl`: append the line when non-empty.
+   - `templates/sync.tmpl`: fix the description, which still says "current
+     year" (stale since the window change).
+   - Extend `html_handler_test.go`: footer shows the info when provided,
+     nothing extra when not.
+
+6. **Docs and notes**
+   - `CLAUDE.md`: document `SYNC_SCHEDULE` / `SYNC_TZ` under the Go config
+     list and the commands/architecture text; under "Dual implementation
+     rule" add a "Deliberately Go-only" list with this feature and the reason.
+   - `legacy/app.py`: one comment above `sync_bank()` stating that scheduled
+     sync exists only in Go, on purpose.
+   - `CHANGELOG.md` entry; copy this plan to
+     `docs/plans/2026-10-08-HHMM-scheduled-bank-sync.md`.
+   - Add a note to the cleanup task list: T18 (time zone) is addressed for
+     the scheduler only; the "current month" logic still uses the process
+     clock.
+
+No new dependencies. No Dockerfile change. No change to parity fixtures or
+the JSON API.
+
+## Deployment notes (for the MR description)
+
+- On by default at 04:00 Europe/Prague. Set `SYNC_SCHEDULE=off` to disable.
+- A locally running `make web-go` with real credentials will also sync at
+  that time.
+- With more than one replica each pod would run its own schedule; the
+  deployment must stay at one replica (or disable the schedule on extras).
+- Without `FIO_API_TOKEN_*` the sync scrapes the transparent-account pages,
+  as today.
+
+## Verification
+
+1. `make go-test-all` and `make go-lint` equivalent (`go vet`, `gofmt -l`);
+   `make test` to confirm Python is untouched.
+2. Start `fuj server` with `SYNC_SCHEDULE=off` → log says disabled, footer
+   shows no schedule.
+3. Start with an invalid value (`SYNC_SCHEDULE=25:00`) → exits with an error.
+4. Live check: start with `SYNC_SCHEDULE` set two minutes ahead and watch the
+   log for the scheduled run and the footer for the status line. **This
+   performs one real sync** against the payments sheet (currently one pending
+   transaction would be appended) — the same thing a click on `/sync-bank`
+   does.
+5. While that run is in progress, or with a test job, confirm a second
+   trigger reports "already running".
+6. Build the Go image and confirm the schedule log line shows the Prague
+   zone inside the container (proves the embedded zone data works).
@@ -0,0 +1,109 @@
+# Inference: messages starting with "other:" are not monthly fees
+
+## Context
+
+Some payments are not monthly fees (tournament fees, jerseys, …). Reconcile
+already supports them: a row whose **Purpose** starts with `other:` is attached
+to the person's "other transactions" and is not counted against any month.
+Today that only happens when someone types the purpose by hand, because
+inference always tries to find a month — from the message, or failing that
+from the payment date.
+
+New rule: when the bank message for the recipient **starts with `other:`**,
+inference must not look for a month. It copies the message into Purpose, so
+the payment is linked to the person but not counted as a monthly fee. Messages
+that merely contain `other:` somewhere else are handled the old way.
+
+Implemented in both Go and legacy Python (this is inference behaviour, so the
+dual implementation rule applies).
+
+## Behaviour
+
+- Trigger: message, after trimming whitespace, starts with `other:`
+  (case-insensitive, same test reconcile already uses for Purpose).
+- Purpose written to the sheet: the trimmed message, unchanged
+  (e.g. `other: turnaj Praha`). No month parsing, no date fallback.
+- Person: inferred exactly as today (sender + message + VS, then sender
+  alone), including the `[?]` review marker.
+- Inferred Amount: the full amount, as today.
+- No person found: Purpose is still written, Person stays empty. The row then
+  shows up under "unmatched" for a manual fix instead of being guessed again
+  on every run.
+- Rows not yet processed by inference (Person and Purpose both empty) are
+  inferred on the fly by reconcile; that path follows the same rule, so such a
+  payment is never briefly counted as a monthly fee.
+- Existing rows are untouched: inference only fills rows where manual fix,
+  Person and Purpose are all empty. To reprocess an old row, clear its Person
+  and Purpose cells.
+
+## Implementation
+
+Branch `feat/infer-other-purpose` off `main`; MR via `tea`.
+
+The output shape of the inference function does not change: for an "other"
+message the months list holds the single purpose string. That is the same
+convention reconcile already uses internally (`matchedMonths = [purpose]`),
+and it means the sheet-writing code needs no change in either language.
+
+1. **Shared predicate**
+   - Go: `matching.IsOtherPurpose(s string) bool` in
+     `go/internal/domain/matching/infer.go`
+     (`strings.HasPrefix(strings.ToLower(strings.TrimSpace(s)), "other:")`).
+   - Python: `is_other_purpose(s)` in `legacy/scripts/match_payments.py`.
+   - Replace the two existing inline checks in reconcile with it
+     (`go/internal/domain/reconcile/reconcile.go`, `reconcile()` in
+     `match_payments.py`).
+
+2. **Inference**
+   - Go `matching.InferTransactionDetails` and Python
+     `infer_transaction_details`: after member matching, if the message is an
+     other-purpose, return `months = [trimmed message]` and skip
+     `ParseMonthReferences` and the date fallback. Update the doc comments
+     (months may hold one `other:…` purpose).
+   - `banksync.InferPayments` (`go/internal/services/banksync/infer.go`) and
+     `infer_payments.py`: no logic change — they already join months into
+     Purpose and write the row when either members or months are non-empty.
+
+3. **Reconcile fallback** (rows with empty Person/Purpose)
+   - In the inference-fallback branch of both reconcile implementations: if
+     the inferred months are a single other-purpose, set the row's purpose to
+     it and mark it as other, so it goes to the member's other-transactions
+     ledger instead of the month allocation.
+
+4. **Tests and fixtures**
+   - Seeds in `legacy/scripts/_fixture_seeds.py`, captured with the existing
+     capture/scrub scripts for these two functions only:
+     - `infer_transaction_details`: `other_prefix` (message
+       `other: tournament`, member in sender → that purpose, no month),
+       `other_prefix_uppercase` (`Other: …`), `other_not_at_start`
+       (`leden other: x` → old behaviour, month parsed).
+     - `reconcile`: `11_other_message_fallback` (empty Person/Purpose, message
+       starts with `other:` → lands in `other_transactions`, month stays
+       unpaid).
+   - Go unit tests: `IsOtherPurpose` table; cases in
+     `matching/infer_test.go`; a case in `banksync/infer_test.go` asserting
+     the written row (`Person`, `Purpose = "other: …"`, amount) and one with
+     no matching member; a fallback case in `reconcile/reconcile_test.go`.
+   - Python: cases in `legacy/tests/test_match_payments.py` for
+     `infer_transaction_details` and the reconcile fallback.
+   - Existing fixtures must stay byte-identical apart from the new files.
+
+5. **Docs**
+   - `CLAUDE.md`: add the rule to the payments-sheet / inference description.
+   - `CHANGELOG.md` entry; copy this plan to
+     `docs/plans/2026-10-08-HHMM-infer-other-purpose.md`.
+
+No change to the JSON API, schemas, templates or the sheet layout.
+
+## Verification
+
+1. `make go-test-all` (unit + parity, including the new fixtures) and
+   `make test`.
+2. `git status go/tests/fixtures` shows only the four new fixture files.
+3. Dry run against the live sheet in both implementations
+   (`fuj infer --dry-run`, Python `infer_payments.py --dry-run`): confirm it
+   runs cleanly and proposes nothing unexpected. The live sheet probably has
+   no un-inferred row starting with `other:`, so the new rule itself is
+   proven by the tests rather than by live data.
+4. `make parity` between the two servers (or the two-container run used
+   earlier) still reports 3/3 routes matching.
@@ -1,20 +1,25 @@
 package main

 import (
+	"bytes"
 	"context"
+	"errors"
 	"flag"
 	"fmt"
 	"fuj-management/go/internal/config"
 	"fuj-management/go/internal/io/fio"
 	"fuj-management/go/internal/io/sheets"
 	"fuj-management/go/internal/logging"
+	"fuj-management/go/internal/scheduler"
 	"fuj-management/go/internal/services/banksync"
 	"fuj-management/go/internal/services/membership"
 	"fuj-management/go/internal/web"
 	"io"
 	"log/slog"
 	"os"
+	"strings"
 	"time"
+	_ "time/tzdata" // the container image has no zone database; SYNC_TZ needs one
 )

 // Injected at build time via -ldflags "-X main.version=... -X main.commit=... -X main.buildDate=..."
@@ -90,11 +95,17 @@ func serverCmd(args []string) {
 	}
 	fioClients := buildFioClients(cfg)

-	actions := web.ActionHandlers{
-		BankSync: func(ctx context.Context, out io.Writer) error {
-			yr := time.Now().Year()
-			from := time.Date(yr, 1, 1, 0, 0, 0, 0, time.UTC)
-			to := time.Date(yr, 12, 31, 23, 59, 59, 0, time.UTC)
+	syncTimes, syncLoc, err := config.LoadSyncSchedule()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "fuj server: %v\n", err)
+		os.Exit(2)
+	}
+
+	// One runner serves both the /sync-bank page and the scheduler, so the two
+	// can never run at the same time.
+	runner := banksync.NewRunner(
+		func(ctx context.Context, out io.Writer) error {
+			from, to := banksync.DefaultWindow(time.Now())

 			fmt.Fprintln(out, "=== Sync Fio Transactions ===")
 			n, err := banksync.SyncToSheets(ctx, config.PaymentsSheetID, fioClients, sheetsCli,
@@ -112,6 +123,22 @@ func serverCmd(args []string) {
 			fmt.Fprintf(out, "Inferred %d row(s).\n", n)
 			return nil
 		},
+	)
+
+	actions := web.ActionHandlers{
+		BankSync: func(ctx context.Context, out io.Writer) error {
+			return runner.Run(ctx, "manual", out)
+		},
+		SyncInfo: func() string { return syncInfo(runner, syncTimes, syncLoc, time.Now()) },
+	}
+
+	if len(syncTimes) == 0 {
+		logger.Info("scheduled bank sync disabled (SYNC_SCHEDULE=off)")
+	} else {
+		logger.Info("scheduled bank sync enabled", "times", fmt.Sprint(syncTimes), "tz", syncLoc.String())
+		go scheduler.Run(ctx, syncTimes, syncLoc, logger, func(ctx context.Context) {
+			scheduledSync(ctx, logger, runner, sources)
+		})
 	}

 	build := web.BuildInfo{Version: version, Commit: commit, BuildDate: buildDate}
@@ -122,6 +149,55 @@ func serverCmd(args []string) {
 	}
 }

+// scheduledSyncTimeout bounds one scheduled run (two bank fetches plus sheet writes).
+const scheduledSyncTimeout = 10 * time.Minute
+
+// scheduledSync is the scheduler's job: the same sync → infer → flush-cache
+// sequence as the /sync-bank page, with the outcome written to the log.
+func scheduledSync(ctx context.Context, logger *slog.Logger, runner *banksync.Runner, sources membership.Sources) {
+	ctx, cancel := context.WithTimeout(ctx, scheduledSyncTimeout)
+	defer cancel()
+
+	logger.Info("scheduled bank sync starting")
+	var buf bytes.Buffer
+	err := runner.Run(ctx, "scheduled", &buf)
+	if errors.Is(err, banksync.ErrBusy) {
+		logger.Warn("scheduled bank sync skipped: a sync is already running")
+		return
+	}
+	output := strings.Join(strings.Fields(buf.String()), " ")
+	if _, ferr := sources.FlushCache(); ferr != nil {
+		logger.Error("scheduled bank sync: cache flush failed", "err", ferr)
+	}
+	if err != nil {
+		logger.Error("scheduled bank sync failed", "err", err, "output", output)
+		return
+	}
+	logger.Info("scheduled bank sync finished", "output", output)
+}
+
+// syncInfo renders the footer line: the last run since the server started
+// and the next scheduled one.
+func syncInfo(runner *banksync.Runner, times []scheduler.TimeOfDay, loc *time.Location, now time.Time) string {
+	const layout = "2006-01-02 15:04"
+	var parts []string
+	if st, ok := runner.Last(); ok {
+		result := "ok"
+		if st.Err != nil {
+			result = "FAILED"
+		}
+		parts = append(parts, fmt.Sprintf("last sync %s (%s) %s", st.Finished.In(loc).Format(layout), st.Trigger, result))
+	} else {
+		parts = append(parts, "no sync since start")
+	}
+	if next := scheduler.Next(now, times, loc); !next.IsZero() {
+		parts = append(parts, "next "+next.Format(layout))
+	} else {
+		parts = append(parts, "scheduled sync off")
+	}
+	return strings.Join(parts, " | ")
+}
+
 func feesCmd(args []string) {
 	fs := flag.NewFlagSet("fees", flag.ExitOnError)
 	fs.Usage = func() {
@@ -0,0 +1,35 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"fuj-management/go/internal/scheduler"
+	"fuj-management/go/internal/services/banksync"
+	"io"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestSyncInfo(t *testing.T) {
+	now := time.Date(2026, 10, 8, 12, 0, 0, 0, time.UTC)
+	four := []scheduler.TimeOfDay{{Hour: 4}}
+
+	ok := banksync.NewRunner(func(context.Context, io.Writer) error { return nil })
+	if got := syncInfo(ok, four, time.UTC, now); got != "no sync since start | next 2026-10-09 04:00" {
+		t.Errorf("before any run: %q", got)
+	}
+	if err := ok.Run(context.Background(), "scheduled", io.Discard); err != nil {
+		t.Fatal(err)
+	}
+	got := syncInfo(ok, nil, time.UTC, now)
+	if !strings.HasPrefix(got, "last sync ") || !strings.HasSuffix(got, "(scheduled) ok | scheduled sync off") {
+		t.Errorf("after ok run, schedule off: %q", got)
+	}
+
+	bad := banksync.NewRunner(func(context.Context, io.Writer) error { return errors.New("boom") })
+	_ = bad.Run(context.Background(), "manual", io.Discard)
+	if got := syncInfo(bad, four, time.UTC, now); !strings.Contains(got, "(manual) FAILED | next 2026-10-09 04:00") {
+		t.Errorf("after failed run: %q", got)
+	}
+}
@@ -21,7 +21,7 @@ var allRoutes = []string{"/api/adults", "/api/juniors", "/api/payments"}

 // defaultAllowlist holds dotted key paths to strip before diffing.
 // render_time.total is forward-compatible insurance: today it lives in the Jinja
-// template context only (app.py inject_render_time) and is logged via
+// template context only (legacy/app.py inject_render_time) and is logged via
 // middleware/timer.go on the Go side, so it isn't in any JSON response. If either
 // side ever surfaces it under a render_time envelope, the scrubber handles it.
 var defaultAllowlist = []string{"render_time.total"}
@@ -1,6 +1,8 @@
 package config

 import (
+	"fmt"
+	"fuj-management/go/internal/scheduler"
 	"os"
 	"strconv"
 	"strings"
@@ -42,7 +44,7 @@ const (
 	JuniorSheetGID          = "1213318614" // gid=1213318614 — junior practices tab (IMPORTRANGE'd)
 )

-// CacheSheetMap mirrors scripts/config.py CACHE_SHEET_MAP.
+// CacheSheetMap mirrors legacy/scripts/config.py CACHE_SHEET_MAP.
 // Maps a cache key to the Google Sheet ID whose Drive modifiedTime gates it.
 // Both attendance keys map to the same spreadsheet — different tabs, one Drive file.
 var CacheSheetMap = map[string]string{
@@ -53,7 +55,7 @@ var CacheSheetMap = map[string]string{
 }

 // Config holds all runtime configuration loaded from environment variables.
-// Mirrors scripts/config.py.
+// Mirrors legacy/scripts/config.py.
 type Config struct {
 	CredentialsPath  string
 	QRAccount        string          // IBAN of the primary account used for QR codes
@@ -92,6 +94,28 @@ func Load() Config {
 	}
 }

+// Scheduled bank sync defaults (Go server only; the legacy Python app has no scheduler).
+const (
+	DefaultSyncSchedule = "04:00"         // SYNC_SCHEDULE: comma-separated HH:MM times, or "off"
+	DefaultSyncTimezone = "Europe/Prague" // SYNC_TZ: IANA zone the schedule is read in
+)
+
+// LoadSyncSchedule reads SYNC_SCHEDULE and SYNC_TZ. An empty schedule means
+// the scheduled sync is disabled. Resolving the zone needs a zone database:
+// the server binary embeds one via time/tzdata.
+func LoadSyncSchedule() ([]scheduler.TimeOfDay, *time.Location, error) {
+	times, err := scheduler.ParseTimes(env("SYNC_SCHEDULE", DefaultSyncSchedule))
+	if err != nil {
+		return nil, nil, fmt.Errorf("SYNC_SCHEDULE: %w", err)
+	}
+	tz := env("SYNC_TZ", DefaultSyncTimezone)
+	loc, err := time.LoadLocation(tz)
+	if err != nil {
+		return nil, nil, fmt.Errorf("SYNC_TZ: unknown time zone %q", tz)
+	}
+	return times, loc, nil
+}
+
 // IBANAccountNum extracts the bare account number from a Czech IBAN.
 // "CZ8520100000002800359168" → "2800359168"
 // Structure: CZ(2 check)(4 bank code)(16 zero-padded account).
@@ -0,0 +1,45 @@
+package config
+
+import (
+	"testing"
+)
+
+func TestLoadSyncSchedule(t *testing.T) {
+	cases := []struct {
+		name, schedule, tz string
+		wantTimes          int
+		wantZone           string
+		wantErr            bool
+	}{
+		{"defaults", "", "", 1, "Europe/Prague", false},
+		{"two times", "06:00,18:00", "", 2, "Europe/Prague", false},
+		{"off", "off", "", 0, "Europe/Prague", false},
+		{"other zone", "04:00", "UTC", 1, "UTC", false},
+		{"bad time", "25:00", "", 0, "", true},
+		{"bad zone", "04:00", "Mars/Olympus", 0, "", true},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Setenv("SYNC_SCHEDULE", tc.schedule)
+			t.Setenv("SYNC_TZ", tc.tz)
+			times, loc, err := LoadSyncSchedule()
+			if (err != nil) != tc.wantErr {
+				t.Fatalf("err = %v, wantErr %v", err, tc.wantErr)
+			}
+			if tc.wantErr {
+				return
+			}
+			if len(times) != tc.wantTimes {
+				t.Errorf("times = %v, want %d entries", times, tc.wantTimes)
+			}
+			if loc.String() != tc.wantZone {
+				t.Errorf("zone = %s, want %s", loc, tc.wantZone)
+			}
+		})
+	}
+	t.Setenv("SYNC_SCHEDULE", "")
+	t.Setenv("SYNC_TZ", "")
+	if times, _, _ := LoadSyncSchedule(); len(times) != 1 || times[0].String() != DefaultSyncSchedule {
+		t.Errorf("default schedule = %v, want [%s]", times, DefaultSyncSchedule)
+	}
+}
@@ -9,7 +9,7 @@ func TestParseMonthReferences(t *testing.T) {
 	t.Parallel()

 	// All expected outputs verified against live Python implementation on 2026-05-05:
-	//   PYTHONPATH=scripts:. python -c 'from czech_utils import parse_month_references; print(parse_month_references("<input>", 2026))'
+	//   PYTHONPATH=legacy/scripts:legacy python -c 'from czech_utils import parse_month_references; print(parse_month_references("<input>", 2026))'
 	tests := []struct {
 		name        string
 		input       string
@@ -1,34 +1,37 @@
-// Package fees ports fee calculation from scripts/attendance.py.
+// Package fees ports fee calculation from legacy/scripts/attendance.py.
 package fees

 const (
-	AdultFeeDefault = 700 // CZK fallback for 2+ practices when month not in AdultFeeMonthlyRate
+	AdultFeeDefault = 600 // CZK fallback for 2+ practices when month not in AdultFeeMonthlyRate
 	AdultFeeSingle  = 200 // CZK for exactly 1 practice
 )

-// AdultFeeMonthlyRate mirrors ADULT_FEE_MONTHLY_RATE in scripts/attendance.py.
+// AdultFeeMonthlyRate mirrors ADULT_FEE_MONTHLY_RATE in legacy/scripts/attendance.py.
 // Months absent from this map fall back to AdultFeeDefault.
 var AdultFeeMonthlyRate = map[string]int{
 	"2025-09": 750, "2025-10": 750, "2025-11": 750, "2025-12": 750,
 	"2026-01": 750, "2026-02": 750, "2026-03": 350,
-	"2026-04": 700, "2026-05": 450, "2026-06": 600, "2026-07": 600, "2026-08": 600,
+	"2026-04": 700, "2026-05": 450, "2026-06": 600, "2026-07": 0, "2026-08": 0,
+	"2026-09": 600, "2026-10": 600, "2026-11": 600, "2026-12": 600,
 }

 // CalculateFee returns the adult fee in CZK for attendanceCount practices in
 // the given monthKey (format "YYYY-MM").
 //
 //	0 practices → 0
-//	1 practice  → AdultFeeSingle (200)
+//	1 practice  → AdultFeeSingle (200), capped at the month's rate so a
+//	              0-rate month is free for everyone
 //	2+          → AdultFeeMonthlyRate[monthKey] or AdultFeeDefault
 func CalculateFee(attendanceCount int, monthKey string) int {
 	if attendanceCount == 0 {
 		return 0
 	}
+	rate, ok := AdultFeeMonthlyRate[monthKey]
+	if !ok {
+		rate = AdultFeeDefault
+	}
 	if attendanceCount == 1 {
-		return AdultFeeSingle
+		return min(AdultFeeSingle, rate)
 	}
-	if rate, ok := AdultFeeMonthlyRate[monthKey]; ok {
-		return rate
-	}
-	return AdultFeeDefault
+	return rate
 }
@@ -5,24 +5,42 @@ import "testing"
 func TestCalculateFee(t *testing.T) {
 	t.Parallel()

-	// All expected outputs verified against live Python implementation on 2026-05-06:
-	//   PYTHONPATH=scripts:. python -c 'from attendance import calculate_fee; print([calculate_fee(c,m) for c,m in [(0,"2026-05"),(0,""),(1,"2026-05"),(1,"unknown"),(2,"2026-05"),(2,"2026-03"),(2,"2025-09"),(5,"2026-05"),(2,"2027-01"),(2,"")]])'
+	// mustRate returns the configured rate for a month that must be in the map.
+	// It panics immediately if the month is absent — so if a rate entry is ever
+	// removed, the test fails loudly rather than silently comparing against
+	// Go's zero value.
+	mustRate := func(month string) int {
+		r, ok := AdultFeeMonthlyRate[month]
+		if !ok {
+			panic("test month not in AdultFeeMonthlyRate: " + month)
+		}
+		return r
+	}
+
 	tests := []struct {
 		name  string
 		count int
 		month string
 		want  int
 	}{
+		// Zero attendance always returns 0.
 		{"zero short-circuits", 0, "2026-05", 0},
 		{"zero empty month", 0, "", 0},
-		{"single practice", 1, "2026-05", 200},
-		{"single ignores monthKey", 1, "unknown", 200},
-		{"two practices configured month", 2, "2026-05", 700},
-		{"two practices reduced march", 2, "2026-03", 350},
-		{"two practices early season", 2, "2025-09", 750},
-		{"high count same as two", 5, "2026-05", 700},
-		{"unknown future month falls back", 2, "2027-01", 700},
-		{"empty month falls back", 2, "", 700},
+		// Single practice returns AdultFeeSingle, capped at the month's rate.
+		{"single practice", 1, "2026-05", AdultFeeSingle},
+		{"single unknown month", 1, "unknown", AdultFeeSingle},
+		{"single in free month is free", 1, "2026-07", 0},
+		{"two in free month is free", 2, "2026-08", 0},
+		// Two+ practices for a configured month: must use the map value, not the default.
+		// Expected values are read from AdultFeeMonthlyRate so this test stays correct
+		// when rates are updated — the assertion verifies dispatch logic, not rate values.
+		{"two practices configured month", 2, "2026-05", mustRate("2026-05")},
+		{"two practices reduced march", 2, "2026-03", mustRate("2026-03")},
+		{"two practices early season", 2, "2025-09", mustRate("2025-09")},
+		{"high count same as two", 5, "2026-05", mustRate("2026-05")},
+		// Two+ practices for an unknown/future month: must fall back to AdultFeeDefault.
+		{"unknown future month falls back", 2, "2027-01", AdultFeeDefault},
+		{"empty month falls back", 2, "", AdultFeeDefault},
 	}

 	for _, tc := range tests {
@@ -2,7 +2,7 @@ package fees

 const JuniorFeeDefault = 500 // CZK fallback for 2+ practices when month not in JuniorFeeMonthlyRate

-// JuniorFeeMonthlyRate mirrors JUNIOR_MONTHLY_RATE in scripts/attendance.py.
+// JuniorFeeMonthlyRate mirrors JUNIOR_MONTHLY_RATE in legacy/scripts/attendance.py.
 // Months absent from this map fall back to JuniorFeeDefault.
 var JuniorFeeMonthlyRate = map[string]int{
 	"2025-09": 250,
@@ -5,24 +5,37 @@ import "testing"
 func TestCalculateJuniorFee(t *testing.T) {
 	t.Parallel()

-	// All expected outputs verified against live Python implementation on 2026-05-06:
-	//   PYTHONPATH=scripts:. python -c 'from attendance import calculate_junior_fee; print([calculate_junior_fee(c,m) for c,m in [(0,"2026-05"),(0,""),(1,"2026-05"),(1,"unknown"),(2,"2026-05"),(2,"2025-09"),(2,"2026-03"),(5,"2025-09"),(2,"2027-01"),(2,"")]])'
+	// mustRate returns the configured rate for a month that must be in the map.
+	// Panics immediately if the month is absent so a removed entry causes a loud
+	// failure rather than a silent comparison against Go's zero value.
+	mustRate := func(month string) Expected {
+		r, ok := JuniorFeeMonthlyRate[month]
+		if !ok {
+			panic("test month not in JuniorFeeMonthlyRate: " + month)
+		}
+		return Expected{Value: r}
+	}
+
 	tests := []struct {
 		name  string
 		count int
 		month string
 		want  Expected
 	}{
+		// Zero attendance always returns 0.
 		{"zero short-circuits", 0, "2026-05", Expected{Value: 0}},
 		{"zero empty month", 0, "", Expected{Value: 0}},
+		// Single practice returns the Unknown sentinel regardless of month.
 		{"single practice sentinel", 1, "2026-05", Expected{Unknown: true}},
 		{"single ignores monthKey", 1, "unknown", Expected{Unknown: true}},
-		{"two practices default month", 2, "2026-05", Expected{Value: 500}},
-		{"two practices reduced sept", 2, "2025-09", Expected{Value: 250}},
-		{"two practices reduced march", 2, "2026-03", Expected{Value: 250}},
-		{"high count same as two", 5, "2025-09", Expected{Value: 250}},
-		{"unknown future month falls back", 2, "2027-01", Expected{Value: 500}},
-		{"empty month falls back", 2, "", Expected{Value: 500}},
+		// Two+ practices for a configured month: must use the map value, not the default.
+		{"two practices unconfigured month", 2, "2026-05", Expected{Value: JuniorFeeDefault}},
+		{"two practices reduced sept", 2, "2025-09", mustRate("2025-09")},
+		{"two practices reduced march", 2, "2026-03", mustRate("2026-03")},
+		{"high count same as two", 5, "2025-09", mustRate("2025-09")},
+		// Two+ practices for an unknown/future month: must fall back to JuniorFeeDefault.
+		{"unknown future month falls back", 2, "2027-01", Expected{Value: JuniorFeeDefault}},
+		{"empty month falls back", 2, "", Expected{Value: JuniorFeeDefault}},
 	}

 	for _, tc := range tests {
@@ -1,2 +1,2 @@
-// Package matching ports name/member matching from scripts/match_payments.py.
+// Package matching ports name/member matching from legacy/scripts/match_payments.py.
 package matching
@@ -14,7 +14,7 @@ var sheetsEpoch = time.Date(1899, 12, 30, 0, 0, 0, 0, time.UTC)
 // a pre-formatted "YYYY-MM-DD" string (returned as-is), or any other value
 // (returned as fmt.Sprint(v).TrimSpace). Never returns an error.
 //
-// Ports scripts/match_payments.py format_date.
+// Ports legacy/scripts/match_payments.py format_date.
 func FormatDate(val any) string {
 	if val == nil {
 		return ""
@@ -1,8 +1,8 @@
 package matching

-// Expected values verified against scripts/match_payments.py on 2026-05-06:
+// Expected values verified against legacy/scripts/match_payments.py on 2026-05-06:
 //
-//	PYTHONPATH=scripts:. python3 -c '
+//	PYTHONPATH=legacy/scripts:legacy python3 -c '
 //	from match_payments import format_date
 //	for v in [None, "", 44197, 44197.5, "2026-04-15", "garbage", "  2026-04-15  "]:
 //	    print(repr(format_date(v)))
@@ -3,6 +3,7 @@ package matching
 import (
 	"fmt"
 	"fuj-management/go/internal/domain/czech"
+	"strings"
 	"time"
 )

@@ -17,12 +18,22 @@ type Transaction struct {
 }

 // InferredDetails is the result of InferTransactionDetails.
+// Months holds "YYYY-MM" keys, or exactly one "other:…" purpose when the
+// payment is not a monthly fee (see IsOtherPurpose).
 type InferredDetails struct {
 	Members    []Match
 	Months     []string
 	SearchText string
 }

+// IsOtherPurpose reports whether s marks a payment that is not a monthly fee:
+// it starts with "other:" (case-insensitive, leading whitespace ignored).
+// Used for both the Purpose column and the bank message.
+// Ports legacy/scripts/match_payments.py is_other_purpose.
+func IsOtherPurpose(s string) bool {
+	return strings.HasPrefix(strings.ToLower(strings.TrimSpace(s)), "other:")
+}
+
 // InferTransactionDetails infers which member(s) and month(s) a transaction belongs to.
 //
 // Search text for member matching: sender + message + user_id.
@@ -30,20 +41,32 @@ type InferredDetails struct {
 // Fallback 1: if no members found, retry match on sender alone.
 // Fallback 2: if no months found, derive from tx.Date (Sheets serial or YYYY-MM-DD).
 //
+// A message that starts with "other:" is not a monthly fee: no month is
+// inferred (neither from the text nor from the date) and Months holds the
+// trimmed message as the single purpose.
+//
 // defaultYear seeds czech.ParseMonthReferences (Python defaulted to the current year;
 // callers should pass time.Now().Year() or a fixed year for deterministic tests).
 //
-// Ports scripts/match_payments.py infer_transaction_details.
+// Ports legacy/scripts/match_payments.py infer_transaction_details.
 func InferTransactionDetails(tx Transaction, memberNames []string, defaultYear int) InferredDetails {
 	searchText := fmt.Sprintf("%s %s %s", tx.Sender, tx.Message, tx.UserID)

 	members := MatchMembers(searchText, memberNames)
-	months := czech.ParseMonthReferences(tx.Message+" "+tx.UserID, defaultYear)
-
 	if len(members) == 0 {
 		members = MatchMembers(tx.Sender, memberNames)
 	}

+	if IsOtherPurpose(tx.Message) {
+		return InferredDetails{
+			Members:    members,
+			Months:     []string{strings.TrimSpace(tx.Message)},
+			SearchText: searchText,
+		}
+	}
+
+	months := czech.ParseMonthReferences(tx.Message+" "+tx.UserID, defaultYear)
+
 	if len(months) == 0 && tx.Date != nil && tx.Date != "" {
 		if ym := inferMonthFromDate(tx.Date); ym != "" {
 			months = []string{ym}
@@ -1,8 +1,8 @@
 package matching

-// Expected values verified against scripts/match_payments.py on 2026-05-06:
+// Expected values verified against legacy/scripts/match_payments.py on 2026-05-06:
 //
-//	PYTHONPATH=scripts:. python3 << 'EOF'
+//	PYTHONPATH=legacy/scripts:legacy python3 << 'EOF'
 //	from match_payments import infer_transaction_details
 //	MEMBERS = ["Tomáš Němeček (Tov)", "Jana Nováková"]
 //	cases = [
@@ -32,6 +32,74 @@ import (

 var inferMembers = []string{"Tomáš Němeček (Tov)", "Jana Nováková"}

+func TestIsOtherPurpose(t *testing.T) {
+	t.Parallel()
+	cases := map[string]bool{
+		"other: tournament":   true,
+		"other:shirt":         true,
+		"  Other: Tournament": true,
+		"OTHER:x":             true,
+		"leden other: x":      false,
+		"other tournament":    false,
+		"another: x":          false,
+		"2026-01":             false,
+		"":                    false,
+	}
+	for in, want := range cases {
+		if got := IsOtherPurpose(in); got != want {
+			t.Errorf("IsOtherPurpose(%q) = %v, want %v", in, got, want)
+		}
+	}
+}
+
+func TestInferTransactionDetails_OtherMessage(t *testing.T) {
+	t.Parallel()
+	jana := []Match{{Name: "Jana Nováková", Confidence: ConfidenceAuto}}
+	cases := []struct {
+		name        string
+		tx          Transaction
+		wantMembers []Match
+		wantMonths  []string
+	}{
+		{
+			// Month words and the date must both be ignored.
+			name:        "other prefix: message becomes the purpose, no month",
+			tx:          Transaction{Sender: "Jana Novakova", Message: " other: turnaj leden 2026 ", Date: "2026-04-15"},
+			wantMembers: jana,
+			wantMonths:  []string{"other: turnaj leden 2026"},
+		},
+		{
+			name:        "other prefix is case-insensitive and keeps the original text",
+			tx:          Transaction{Sender: "Jana Novakova", Message: "Other: Dres", Date: "2026-04-15"},
+			wantMembers: jana,
+			wantMonths:  []string{"Other: Dres"},
+		},
+		{
+			name:        "other prefix with no known member still yields the purpose",
+			tx:          Transaction{Sender: "Unknown Payer", Message: "other: dres", Date: "2026-04-15"},
+			wantMembers: nil,
+			wantMonths:  []string{"other: dres"},
+		},
+		{
+			name:        "other: not at the start is handled the old way",
+			tx:          Transaction{Sender: "Jana Novakova", Message: "leden other: dres", Date: "2026-04-15"},
+			wantMembers: jana,
+			wantMonths:  []string{"2026-01"},
+		},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			got := InferTransactionDetails(tc.tx, inferMembers, 2026)
+			if len(got.Members) != len(tc.wantMembers) || (len(got.Members) > 0 && !reflect.DeepEqual(got.Members, tc.wantMembers)) {
+				t.Errorf("Members = %v, want %v", got.Members, tc.wantMembers)
+			}
+			if !reflect.DeepEqual(got.Months, tc.wantMonths) {
+				t.Errorf("Months = %v, want %v", got.Months, tc.wantMonths)
+			}
+		})
+	}
+}
+
 func TestInferTransactionDetails(t *testing.T) {
 	t.Parallel()

@@ -28,7 +28,7 @@ var commonSurnames = map[string]bool{
 // MatchMembers finds members mentioned in text and returns them with a
 // confidence level of "auto" (reliable) or "review" (needs human verification).
 //
-// Algorithm (ported verbatim from scripts/match_payments.py match_members):
+// Algorithm (ported verbatim from legacy/scripts/match_payments.py match_members):
 //  1. Exact short-circuit: if any member's full normalized name appears as whole
 //     words in normalize(text), return ONLY those matches as auto. This prevents
 //     nickname "tov" from matching inside surname "ottova".
@@ -1,9 +1,9 @@
 package matching

-// Expected values verified against scripts/match_payments.py and
+// Expected values verified against legacy/scripts/match_payments.py and
 // tests/test_match_members.py on 2026-05-06:
 //
-//	PYTHONPATH=scripts:. python3 -c '
+//	PYTHONPATH=legacy/scripts:legacy python3 -c '
 //	from match_payments import match_members
 //	MEMBERS = ["Henrietta Ottová", "Tomáš Němeček (Tov)", "František Vrbík (Štrúdl)", "Jana Nováková"]
 //	cases = [
@@ -19,7 +19,7 @@ var (
 // this invariant for the exact short-circuit pass. Variants shorter than 3 characters are
 // dropped.
 //
-// Ports scripts/match_payments.py _build_name_variants.
+// Ports legacy/scripts/match_payments.py _build_name_variants.
 func BuildNameVariants(name string) []string {
 	var nickname string
 	if m := nicknameRe.FindStringSubmatch(name); m != nil {
@@ -1,8 +1,8 @@
 package matching

-// Expected values verified against scripts/match_payments.py on 2026-05-06:
+// Expected values verified against legacy/scripts/match_payments.py on 2026-05-06:
 //
-//	PYTHONPATH=scripts:. python3 -c '
+//	PYTHONPATH=legacy/scripts:legacy python3 -c '
 //	from match_payments import _build_name_variants
 //	for n in ["František Vrbík (Štrúdl)", "Tov (St)", "Jana", "  Petr  Novák  ( Jenda ) "]:
 //	    print(repr(n), "->", _build_name_variants(n))
@@ -1,4 +1,4 @@
-// Package money ports Czech-locale currency parsing from scripts/infer_payments.py.
+// Package money ports Czech-locale currency parsing from legacy/scripts/infer_payments.py.
 package money

 import (
@@ -11,7 +11,7 @@ import (
 var ErrInvalidAmount = errors.New("money: invalid CZK amount")

 // ParseCZK parses a Czech-locale amount string and returns the value in CZK
-// as a float64. Mirrors scripts/infer_payments.py parse_czk_amount:
+// as a float64. Mirrors legacy/scripts/infer_payments.py parse_czk_amount:
 //
 //   - empty input → (0, nil)
 //   - "Kč"/"CZK" suffixes stripped (case-sensitive, like Python)
@@ -8,7 +8,7 @@ func TestParseCZK(t *testing.T) {
 	t.Parallel()

 	// All expected outputs verified against live Python implementation on 2026-05-06:
-	//   PYTHONPATH=scripts:. python -c '
+	//   PYTHONPATH=legacy/scripts:legacy python -c '
 	//   from infer_payments import parse_czk_amount
 	//   for v in [None, "", "0", "500", "500 Kč", "500 CZK",
 	//             "1 500", "1500.00", "1 500.00",
@@ -1,4 +1,4 @@
-// Package reconcile ports the three-phase payment reconciliation from scripts/match_payments.py.
+// Package reconcile ports the three-phase payment reconciliation from legacy/scripts/match_payments.py.
 package reconcile

 import (
@@ -105,7 +105,7 @@ var questionMarkRe = regexp.MustCompile(`\[\?\]\s*`)

 // canonicalMemberKey returns a diacritic-, case-, and whitespace-insensitive key
 // used to resolve Person-column values that drift from canonical attendance-sheet names.
-// Ports scripts/match_payments.py canonical_member_key.
+// Ports legacy/scripts/match_payments.py canonical_member_key.
 func canonicalMemberKey(name string) string {
 	return strings.Join(strings.Fields(czech.Normalize(name)), " ")
 }
@@ -124,7 +124,7 @@ type monthExpected struct {
 // defaultYear seeds czech.ParseMonthReferences in the inference fallback.
 // Pass time.Now().Year() in production; pass a fixed year in tests.
 //
-// Ports scripts/match_payments.py reconcile.
+// Ports legacy/scripts/match_payments.py reconcile.
 func Reconcile(
 	members []Member,
 	sortedMonths []string,
@@ -203,7 +203,7 @@ func Reconcile(
 		personStr := strings.TrimSpace(tx.Person)
 		purposeStr := strings.TrimSpace(tx.Purpose)
 		personStr = questionMarkRe.ReplaceAllString(personStr, "")
-		isOther := strings.HasPrefix(strings.ToLower(purposeStr), "other:")
+		isOther := matching.IsOtherPurpose(purposeStr)

 		var matchedMembers []matching.Match
 		var matchedMonths []string
@@ -249,6 +249,11 @@ func Reconcile(
 			matchedMembers = inferred.Members
 			matchedMonths = inferred.Months
 			amount = tx.Amount
+			// A message starting with "other:" is inferred as a non-fee payment.
+			if len(matchedMonths) == 1 && matching.IsOtherPurpose(matchedMonths[0]) {
+				isOther = true
+				purposeStr = matchedMonths[0]
+			}
 		}

 		if len(matchedMembers) == 0 || len(matchedMonths) == 0 {
@@ -1,8 +1,8 @@
 package reconcile

-// Expected values verified against scripts/match_payments.py on 2026-05-06:
+// Expected values verified against legacy/scripts/match_payments.py on 2026-05-06:
 //
-//	PYTHONPATH=scripts:. python3 -m unittest tests.test_reconcile_exceptions tests.test_match_payments -v
+//	PYTHONPATH=legacy/scripts:legacy python3 -m unittest tests.test_reconcile_exceptions tests.test_match_payments -v
 //
 // All Python test cases are ported below. Additional Go-only cases are marked with [Go].

@@ -257,6 +257,33 @@ func TestReconcileQuestionMarkMarkerStripped(t *testing.T) {
 }

 // [Go] Purpose "other:shirt" puts payment in OtherTransactions, not in month ledger.
+// A row not yet processed by inference (empty Person/Purpose) whose message
+// starts with "other:" must land in the other ledger, not in a month.
+func TestReconcileOtherMessageFallback(t *testing.T) {
+	t.Parallel()
+	members := []Member{{Name: "Alice", Tier: "A", Fees: map[string]FeeData{"2026-01": {Expected: 750, Attendance: 3}}}}
+	txs := []Transaction{{
+		Date: "2026-01-10", Amount: 300,
+		Sender: "Alice", Message: "other: shirt",
+	}}
+
+	result := Reconcile(members, []string{"2026-01"}, txs, nil, 2026)
+
+	alice := result.Members["Alice"]
+	if paid := alice.Months["2026-01"].Paid; paid != 0 {
+		t.Errorf("2026-01 paid = %v, want 0", paid)
+	}
+	if len(alice.OtherTransactions) != 1 {
+		t.Fatalf("other transactions = %d, want 1", len(alice.OtherTransactions))
+	}
+	if got := alice.OtherTransactions[0]; got.Amount != 300 || got.Purpose != "other: shirt" {
+		t.Errorf("other entry = %+v", got)
+	}
+	if len(result.Unmatched) != 0 {
+		t.Errorf("unmatched = %d, want 0", len(result.Unmatched))
+	}
+}
+
 func TestReconcileOtherPurpose(t *testing.T) {
 	t.Parallel()
 	members := []Member{{Name: "Alice", Tier: "A", Fees: map[string]FeeData{"2026-01": {Expected: 750, Attendance: 3}}}}
@@ -1,5 +1,5 @@
 // Package synch ports the bank-sync deduplication helper from
-// scripts/sync_fio_to_sheets.py.
+// legacy/scripts/sync_fio_to_sheets.py.
 package synch

 import (
@@ -30,7 +30,7 @@ type Transaction struct {
 // "date|amount|currency|sender|vs|message|bank_id" (lower-cased), used
 // as the dedup key in column K of the payments sheet.
 //
-// Byte-stable with scripts/sync_fio_to_sheets.py generate_sync_id.
+// Byte-stable with legacy/scripts/sync_fio_to_sheets.py generate_sync_id.
 func GenerateSyncID(tx Transaction) string {
 	currency := tx.Currency
 	if currency == "" {
@@ -6,7 +6,7 @@ import (

 // All expected digests verified against the live Python implementation on 2026-05-06:
 //
-//	PYTHONPATH=scripts:. python -c '
+//	PYTHONPATH=legacy/scripts:legacy python -c '
 //	from sync_fio_to_sheets import generate_sync_id
 //	cases = [
 //	    {"date":"2026-01-15","amount":500.0,"currency":"CZK","sender":"Jan Novak","vs":"123","message":"clenske 1/2026","bank_id":"abc123"},
@@ -88,7 +88,7 @@ func TestGenerateSyncID(t *testing.T) {

 // All expected strings verified against the live Python implementation on 2026-05-06:
 //
-//	PYTHONPATH=scripts:. python -c '
+//	PYTHONPATH=legacy/scripts:legacy python -c '
 //	for v in [0.0, 500.0, -500.0, 0.1, 1234.56, 99999.99, 1500000.0, 1e16, 1e-5]:
 //	    print(repr(v), "->", repr(str(v)))
 //	'
@@ -1,5 +1,5 @@
 // Package cache implements a Drive-modifiedTime-gated JSON file cache,
-// mirroring scripts/cache_utils.py.
+// mirroring legacy/scripts/cache_utils.py.
 package cache

 import (
@@ -26,7 +26,7 @@ type cacheFile struct {

 // FileCache wraps a Drive client to gate JSON file caching on sheet modifiedTime.
 //
-// Two TTL knobs mirror scripts/cache_utils.py:
+// Two TTL knobs mirror legacy/scripts/cache_utils.py:
 //   - ttl: if the cache file on disk is younger than this, skip the Drive check entirely.
 //   - apiCheckTTL: debounces in-memory Drive API calls per sheet ID.
 //
@@ -17,7 +17,7 @@ type httpDoer interface {
 }

 // apiClient fetches transactions from the Fio REST API (JSON).
-// Ports scripts/fio_utils.py fetch_transactions_api.
+// Ports legacy/scripts/fio_utils.py fetch_transactions_api.
 type apiClient struct {
 	token string
 	hc    httpDoer
@@ -15,7 +15,7 @@ import (
 )

 // transparentClient fetches transactions from the Fio transparent account page (HTML).
-// Ports scripts/fio_utils.py FioTableParser + fetch_transactions_transparent.
+// Ports legacy/scripts/fio_utils.py FioTableParser + fetch_transactions_transparent.
 type transparentClient struct {
 	accountNum string
 	hc         httpDoer
@@ -0,0 +1,33 @@
+package sheets
+
+import (
+	"fmt"
+	"strconv"
+)
+
+// CellString renders a cell read with UNFORMATTED_VALUE as text.
+// Numeric cells arrive as float64; fmt.Sprint would print large ones in
+// exponent form ("2.609767878e+09"), which corrupts identifiers such as VS
+// or Bank ID. Mirrors get_str in legacy/scripts/match_payments.py.
+func CellString(v any) string {
+	switch x := v.(type) {
+	case nil:
+		return ""
+	case string:
+		return x
+	case float64:
+		return strconv.FormatFloat(x, 'f', -1, 64)
+	}
+	return fmt.Sprint(v)
+}
+
+// TextCell marks s to be stored as text when written with USER_ENTERED:
+// a leading apostrophe stops Sheets from parsing digits as a number (which
+// would drop leading zeros). The apostrophe is not part of the stored value.
+// Empty stays empty. Mirrors as_text_cell in legacy/scripts/sync_fio_to_sheets.py.
+func TextCell(s string) string {
+	if s == "" {
+		return ""
+	}
+	return "'" + s
+}
@@ -0,0 +1,36 @@
+package sheets
+
+import "testing"
+
+func TestTextCell(t *testing.T) {
+	if got := TextCell("0308"); got != "'0308" {
+		t.Errorf(`TextCell("0308"): got %q`, got)
+	}
+	if got := TextCell(""); got != "" {
+		t.Errorf(`TextCell(""): got %q`, got)
+	}
+}
+
+func TestCellString(t *testing.T) {
+	cases := []struct {
+		name string
+		in   any
+		want string
+	}{
+		{"nil", nil, ""},
+		{"string", "fee", "fee"},
+		{"string with leading zeros", "0308", "0308"},
+		{"small integer float", 123.0, "123"},
+		{"large integer float", 2609767878.0, "2609767878"},
+		{"eleven digit float", 26123456789.0, "26123456789"},
+		{"fractional float", 12.5, "12.5"},
+		{"bool", true, "true"},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			if got := CellString(tc.in); got != tc.want {
+				t.Errorf("CellString(%v): want %q, got %q", tc.in, tc.want, got)
+			}
+		})
+	}
+}
@@ -0,0 +1,95 @@
+// Package scheduler runs a job at fixed times of day.
+package scheduler
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"sort"
+	"strings"
+	"time"
+)
+
+// TimeOfDay is a wall-clock time without a date.
+type TimeOfDay struct {
+	Hour, Minute int
+}
+
+func (t TimeOfDay) String() string { return fmt.Sprintf("%02d:%02d", t.Hour, t.Minute) }
+
+// ParseTimes parses a comma-separated list of HH:MM times, e.g. "04:00" or
+// "06:00,18:00". "off" yields an empty schedule. The result is sorted and
+// de-duplicated.
+func ParseTimes(s string) ([]TimeOfDay, error) {
+	s = strings.TrimSpace(s)
+	if strings.EqualFold(s, "off") {
+		return nil, nil
+	}
+	seen := map[TimeOfDay]bool{}
+	var times []TimeOfDay
+	for _, part := range strings.Split(s, ",") {
+		part = strings.TrimSpace(part)
+		parsed, err := time.Parse("15:04", part)
+		if err != nil {
+			return nil, fmt.Errorf("invalid time %q: want HH:MM, a comma-separated list of them, or \"off\"", part)
+		}
+		t := TimeOfDay{Hour: parsed.Hour(), Minute: parsed.Minute()}
+		if !seen[t] {
+			seen[t] = true
+			times = append(times, t)
+		}
+	}
+	sort.Slice(times, func(i, j int) bool {
+		if times[i].Hour != times[j].Hour {
+			return times[i].Hour < times[j].Hour
+		}
+		return times[i].Minute < times[j].Minute
+	})
+	return times, nil
+}
+
+// Next returns the earliest scheduled instant strictly after now, with the
+// times read in loc. It returns the zero time when times is empty.
+func Next(now time.Time, times []TimeOfDay, loc *time.Location) time.Time {
+	local := now.In(loc)
+	var best time.Time
+	for dayOffset := 0; dayOffset <= 1; dayOffset++ {
+		for _, t := range times {
+			c := time.Date(local.Year(), local.Month(), local.Day()+dayOffset, t.Hour, t.Minute, 0, 0, loc)
+			if c.After(now) && (best.IsZero() || c.Before(best)) {
+				best = c
+			}
+		}
+	}
+	return best
+}
+
+// pollInterval bounds each wait so the loop follows the wall clock across
+// clock adjustments and host suspend instead of relying on one long timer.
+const pollInterval = time.Minute
+
+// Run calls job at every scheduled time until ctx is cancelled. Nothing runs
+// at startup. Runs do not overlap: the next time is computed after job returns.
+func Run(ctx context.Context, times []TimeOfDay, loc *time.Location, logger *slog.Logger, job func(context.Context)) {
+	for {
+		next := Next(time.Now(), times, loc)
+		if next.IsZero() {
+			return
+		}
+		logger.Info("next scheduled run", "at", next.Format(time.RFC3339))
+		for {
+			wait := time.Until(next)
+			if wait <= 0 {
+				break
+			}
+			timer := time.NewTimer(min(wait, pollInterval))
+			select {
+			case <-ctx.Done():
+				timer.Stop()
+				return
+			case <-timer.C:
+			}
+		}
+		job(ctx)
+	}
+}
@@ -0,0 +1,115 @@
+package scheduler
+
+import (
+	"context"
+	"io"
+	"log/slog"
+	"reflect"
+	"testing"
+	"time"
+)
+
+func TestParseTimes(t *testing.T) {
+	cases := []struct {
+		in      string
+		want    []TimeOfDay
+		wantErr bool
+	}{
+		{"04:00", []TimeOfDay{{4, 0}}, false},
+		{" 18:30 , 06:00,06:00 ", []TimeOfDay{{6, 0}, {18, 30}}, false},
+		{"off", nil, false},
+		{"OFF", nil, false},
+		{"", nil, true},
+		{"25:00", nil, true},
+		{"04:60", nil, true},
+		{"daily", nil, true},
+		{"04:00,", nil, true},
+	}
+	for _, tc := range cases {
+		got, err := ParseTimes(tc.in)
+		if (err != nil) != tc.wantErr {
+			t.Errorf("ParseTimes(%q): err = %v, wantErr %v", tc.in, err, tc.wantErr)
+			continue
+		}
+		if !reflect.DeepEqual(got, tc.want) {
+			t.Errorf("ParseTimes(%q) = %v, want %v", tc.in, got, tc.want)
+		}
+	}
+}
+
+func TestNext(t *testing.T) {
+	prague, err := time.LoadLocation("Europe/Prague")
+	if err != nil {
+		t.Fatal(err)
+	}
+	at := func(s string) time.Time {
+		v, err := time.ParseInLocation("2006-01-02 15:04:05", s, prague)
+		if err != nil {
+			t.Fatal(err)
+		}
+		return v
+	}
+	four := []TimeOfDay{{4, 0}}
+	cases := []struct {
+		name  string
+		now   time.Time
+		times []TimeOfDay
+		want  time.Time
+	}{
+		{"before today's time", at("2026-10-08 03:59:59"), four, at("2026-10-08 04:00:00")},
+		{"exactly at the time moves to tomorrow", at("2026-10-08 04:00:00"), four, at("2026-10-09 04:00:00")},
+		{"after today's time", at("2026-10-08 12:00:00"), four, at("2026-10-09 04:00:00")},
+		{"picks the next of several", at("2026-10-08 12:00:00"), []TimeOfDay{{6, 0}, {18, 0}}, at("2026-10-08 18:00:00")},
+		{"year rollover", at("2026-12-31 23:00:00"), four, at("2027-01-01 04:00:00")},
+		{"now given in UTC", at("2026-10-08 03:00:00").UTC(), four, at("2026-10-08 04:00:00")},
+		// Spring forward (2026-03-29 02:00 → 03:00): still 04:00 local, 23h after the previous run.
+		{"spring forward", at("2026-03-28 04:00:00"), four, at("2026-03-29 04:00:00")},
+		// Fall back (2026-10-25 03:00 → 02:00): still 04:00 local, 25h after the previous run.
+		{"fall back", at("2026-10-24 04:00:00"), four, at("2026-10-25 04:00:00")},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			got := Next(tc.now, tc.times, prague)
+			if !got.Equal(tc.want) {
+				t.Errorf("Next = %s, want %s", got, tc.want)
+			}
+		})
+	}
+	if got := Next(at("2026-10-08 12:00:00"), nil, prague); !got.IsZero() {
+		t.Errorf("Next with empty schedule = %s, want zero", got)
+	}
+	if d := at("2026-03-29 04:00:00").Sub(at("2026-03-28 04:00:00")); d != 23*time.Hour {
+		t.Errorf("spring-forward gap = %s, want 23h", d)
+	}
+}
+
+func TestRunStopsOnCancelAndEmptySchedule(t *testing.T) {
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	called := false
+	job := func(context.Context) { called = true }
+
+	done := make(chan struct{})
+	go func() { Run(context.Background(), nil, time.UTC, logger, job); close(done) }()
+	select {
+	case <-done:
+	case <-time.After(2 * time.Second):
+		t.Fatal("Run with empty schedule did not return")
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	done = make(chan struct{})
+	far := time.Now().UTC().Add(12 * time.Hour)
+	go func() {
+		Run(ctx, []TimeOfDay{{far.Hour(), far.Minute()}}, time.UTC, logger, job)
+		close(done)
+	}()
+	cancel()
+	select {
+	case <-done:
+	case <-time.After(2 * time.Second):
+		t.Fatal("Run did not return after cancel")
+	}
+	if called {
+		t.Error("job must not run before its scheduled time")
+	}
+}
@@ -30,7 +30,7 @@ type sheetReadWriter interface {
 // InferPayments fills empty Person/Purpose/Inferred Amount cells in the payments
 // sheet using name and month matching against the member list.
 // Returns the number of rows updated (or that would be updated on dry-run).
-// Ports scripts/infer_payments.py infer_payments.
+// Ports legacy/scripts/infer_payments.py infer_payments.
 func InferPayments(
 	ctx context.Context,
 	spreadsheetID string,
@@ -94,7 +94,7 @@ func InferPayments(
 			if idx < 0 || idx >= len(row) {
 				return ""
 			}
-			return strings.TrimSpace(fmt.Sprint(row[idx]))
+			return strings.TrimSpace(sheets.CellString(row[idx]))
 		}

 		// Skip rule: any of manual fix / Person / Purpose non-empty → leave alone
@@ -53,6 +53,42 @@ func TestInferPayments_BasicMatch(t *testing.T) {
 	}
 }

+func TestInferPayments_OtherMessage(t *testing.T) {
+	sh := &sheets.Fake{Values: map[string][][]any{
+		"SHEETID/A1:Z": {
+			paymentsHeader,
+			// Known member: Person filled, message copied to Purpose, no month.
+			{"2026-04-10", 300.0, "", "", "", "", "Jana Novakova", "", "other: dres", "", ""},
+			// Unknown sender: Purpose is still written, Person stays empty.
+			{"2026-04-11", 500.0, "", "", "", "", "Unknown Payer", "", "Other: turnaj", "", ""},
+		},
+	}}
+	att := &fakeAttendance{
+		adults: []reconcile.Member{{Name: "Jana Novakova", Tier: "A"}},
+	}
+
+	n, err := InferPayments(context.Background(), "SHEETID", sh, att, InferOpts{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if n != 2 {
+		t.Fatalf("want 2 rows updated, got %d", n)
+	}
+	updates := sh.BatchUpdated[0].Updates
+	want := [][]any{
+		{"Jana Novakova", "other: dres", "300"},
+		{"", "Other: turnaj", "500"},
+	}
+	for i, w := range want {
+		got := updates[i].Values[0]
+		for j := range w {
+			if got[j] != w[j] {
+				t.Errorf("row %d col %d: want %q, got %q", i, j, w[j], got[j])
+			}
+		}
+	}
+}
+
 func TestInferPayments_SkipRule_ManualFix(t *testing.T) {
 	sh := &sheets.Fake{Values: map[string][][]any{
 		"SHEETID/A1:Z": {
@@ -0,0 +1,63 @@
+package banksync
+
+import (
+	"context"
+	"errors"
+	"io"
+	"sync"
+	"time"
+)
+
+// ErrBusy is returned by Runner.Run when another run is still in progress.
+var ErrBusy = errors.New("a sync is already running")
+
+// RunStatus describes one finished run of a Runner.
+type RunStatus struct {
+	Started, Finished time.Time
+	Trigger           string // "manual" or "scheduled"
+	Err               error
+}
+
+// Runner serialises bank sync runs so a scheduled run and a manual one never
+// overlap (overlapping runs could append the same rows twice), and remembers
+// the outcome of the last run for display.
+type Runner struct {
+	job func(ctx context.Context, out io.Writer) error
+
+	running sync.Mutex
+
+	mu      sync.Mutex
+	last    RunStatus
+	hasLast bool
+}
+
+// NewRunner wraps job, which performs one full sync and writes a
+// human-readable log to out.
+func NewRunner(job func(ctx context.Context, out io.Writer) error) *Runner {
+	return &Runner{job: job}
+}
+
+// Run executes the job unless one is already running, in which case it
+// returns ErrBusy without waiting.
+func (r *Runner) Run(ctx context.Context, trigger string, out io.Writer) error {
+	if !r.running.TryLock() {
+		return ErrBusy
+	}
+	defer r.running.Unlock()
+
+	st := RunStatus{Started: time.Now(), Trigger: trigger}
+	st.Err = r.job(ctx, out)
+	st.Finished = time.Now()
+
+	r.mu.Lock()
+	r.last, r.hasLast = st, true
+	r.mu.Unlock()
+	return st.Err
+}
+
+// Last returns the outcome of the most recent finished run, if any.
+func (r *Runner) Last() (RunStatus, bool) {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	return r.last, r.hasLast
+}
@@ -0,0 +1,65 @@
+package banksync
+
+import (
+	"context"
+	"errors"
+	"io"
+	"testing"
+)
+
+func TestRunner_RecordsStatus(t *testing.T) {
+	r := NewRunner(func(context.Context, io.Writer) error { return nil })
+	if _, ok := r.Last(); ok {
+		t.Fatal("Last before any run: want ok=false")
+	}
+	if err := r.Run(context.Background(), "scheduled", io.Discard); err != nil {
+		t.Fatal(err)
+	}
+	st, ok := r.Last()
+	if !ok || st.Trigger != "scheduled" || st.Err != nil || st.Finished.Before(st.Started) {
+		t.Errorf("unexpected status %+v ok=%v", st, ok)
+	}
+}
+
+func TestRunner_RecordsError(t *testing.T) {
+	boom := errors.New("boom")
+	r := NewRunner(func(context.Context, io.Writer) error { return boom })
+	if err := r.Run(context.Background(), "manual", io.Discard); !errors.Is(err, boom) {
+		t.Fatalf("Run err = %v, want boom", err)
+	}
+	if st, _ := r.Last(); !errors.Is(st.Err, boom) || st.Trigger != "manual" {
+		t.Errorf("unexpected status %+v", st)
+	}
+}
+
+func TestRunner_BusyWhileRunning(t *testing.T) {
+	started := make(chan struct{})
+	release := make(chan struct{})
+	first := true
+	r := NewRunner(func(context.Context, io.Writer) error {
+		if first { // runs are serialised by Runner, so no extra locking is needed
+			first = false
+			close(started)
+			<-release
+		}
+		return nil
+	})
+	done := make(chan error, 1)
+	go func() { done <- r.Run(context.Background(), "scheduled", io.Discard) }()
+	<-started
+
+	if err := r.Run(context.Background(), "manual", io.Discard); !errors.Is(err, ErrBusy) {
+		t.Errorf("second Run err = %v, want ErrBusy", err)
+	}
+	close(release)
+	if err := <-done; err != nil {
+		t.Fatal(err)
+	}
+	// The skipped run must not overwrite the status of the real one.
+	if st, _ := r.Last(); st.Trigger != "scheduled" {
+		t.Errorf("Last trigger = %q, want scheduled", st.Trigger)
+	}
+	if err := r.Run(context.Background(), "manual", io.Discard); err != nil {
+		t.Errorf("Run after release: %v", err)
+	}
+}
@@ -6,13 +6,14 @@ import (
 	"fmt"
 	"fuj-management/go/internal/domain/synch"
 	"fuj-management/go/internal/io/fio"
+	"fuj-management/go/internal/io/sheets"
 	"os"
 	"strings"
 	"time"
 )

 // columnLabels is the canonical header for the payments sheet.
-// Mirrors COLUMN_LABELS in scripts/sync_fio_to_sheets.py.
+// Mirrors COLUMN_LABELS in legacy/scripts/sync_fio_to_sheets.py.
 var columnLabels = []string{
 	"Date", "Amount", "manual fix", "Person", "Purpose",
 	"Inferred Amount", "Sender", "VS", "Message", "Bank ID", "Sync ID",
@@ -35,9 +36,21 @@ type SyncOpts struct {
 	PrintFioTable bool      // with DryRun: print every fetched Fio txn with NEW/DUP status
 }

+// DefaultWindow is the window used by the dashboard sync: the whole current
+// calendar year plus the last two months of the previous one, so payments
+// dated around New Year are still picked up in January. Re-fetching is safe
+// because rows are deduplicated by Sync ID.
+// Mirrors default_sync_window in legacy/scripts/sync_fio_to_sheets.py.
+func DefaultWindow(now time.Time) (from, to time.Time) {
+	yr := now.Year()
+	from = time.Date(yr-1, time.November, 1, 0, 0, 0, 0, time.UTC)
+	to = time.Date(yr, time.December, 31, 23, 59, 59, 0, time.UTC)
+	return from, to
+}
+
 // SyncToSheets fetches Fio transactions from all provided clients and appends
 // new ones to the payments sheet. Returns the number of rows appended.
-// Ports scripts/sync_fio_to_sheets.py sync_to_sheets.
+// Ports legacy/scripts/sync_fio_to_sheets.py sync_to_sheets.
 func SyncToSheets(
 	ctx context.Context,
 	spreadsheetID string,
@@ -130,7 +143,7 @@ func SyncToSheets(
 		newRows = append(newRows, []any{
 			tx.Date, tx.Amount,
 			"", "", "", "", // manual fix, Person, Purpose, Inferred Amount
-			tx.Sender, tx.VS, tx.Message, tx.BankID, syncIDs[i],
+			tx.Sender, sheets.TextCell(tx.VS), tx.Message, tx.BankID, syncIDs[i],
 		})
 	}

@@ -141,7 +154,7 @@ func SyncToSheets(
 	if opts.DryRun {
 		for _, row := range newRows {
 			fmt.Printf("Dry run: would append date=%v amount=%v sender=%v vs=%v message=%v\n",
-				row[0], row[1], row[6], row[7], row[8])
+				row[0], row[1], row[6], strings.TrimPrefix(fmt.Sprint(row[7]), "'"), row[8])
 		}
 		if opts.Sort {
 			fmt.Println("Dry run: would sort by date")
@@ -38,6 +38,10 @@ func TestSyncToSheets_EmptySheet(t *testing.T) {
 	if syncID, ok := rows[0][10].(string); !ok || len(syncID) != 64 {
 		t.Errorf("expected 64-char hex sync ID, got %v", rows[0][10])
 	}
+	// VS (index 7) is written as text so Sheets keeps it a string.
+	if vs, _ := rows[0][7].(string); vs != "'123" {
+		t.Errorf("expected VS written as text cell '123, got %v", rows[0][7])
+	}
 }

 func TestSyncToSheets_Dedup(t *testing.T) {
@@ -189,3 +193,23 @@ func syncIDFor(tx fio.Transaction) string {
 		Sender: tx.Sender, VS: tx.VS, Message: tx.Message, BankID: tx.BankID,
 	})
 }
+
+func TestDefaultWindow(t *testing.T) {
+	cases := []struct {
+		now      time.Time
+		from, to string
+	}{
+		{time.Date(2026, 10, 8, 12, 0, 0, 0, time.UTC), "2025-11-01", "2026-12-31"},
+		{time.Date(2027, 1, 1, 0, 0, 0, 0, time.UTC), "2026-11-01", "2027-12-31"},
+		{time.Date(2027, 12, 31, 23, 0, 0, 0, time.UTC), "2026-11-01", "2027-12-31"},
+	}
+	for _, tc := range cases {
+		from, to := DefaultWindow(tc.now)
+		if got := from.Format("2006-01-02"); got != tc.from {
+			t.Errorf("DefaultWindow(%s) from: want %s, got %s", tc.now.Format("2006-01-02"), tc.from, got)
+		}
+		if got := to.Format("2006-01-02"); got != tc.to {
+			t.Errorf("DefaultWindow(%s) to: want %s, got %s", tc.now.Format("2006-01-02"), tc.to, got)
+		}
+	}
+}
@@ -9,11 +9,11 @@ import (
 )

 // printFeesTable writes a fixed-width adult-fees table to w.
-// Mirrors scripts/calculate_fees.py main().
+// Mirrors legacy/scripts/calculate_fees.py main().
 //
 // Verify with:
 //
-//	PYTHONPATH=scripts:. python scripts/calculate_fees.py
+//	PYTHONPATH=legacy/scripts:legacy python legacy/scripts/calculate_fees.py
 func printFeesTable(w io.Writer, members []reconcile.Member, sortedMonths []string) {
 	type row struct {
 		name string
@@ -1,8 +1,8 @@
 package membership

-// Golden strings verified against scripts/calculate_fees.py on 2026-05-06:
+// Golden strings verified against legacy/scripts/calculate_fees.py on 2026-05-06:
 //
-//	PYTHONPATH=scripts:. python scripts/calculate_fees.py
+//	PYTHONPATH=legacy/scripts:legacy python legacy/scripts/calculate_fees.py
 //
 // (feed equivalent fixture data via attendance sheet or local CSV)

@@ -10,11 +10,11 @@ import (
 )

 // printReconcileReport writes the full balance report to w.
-// Mirrors scripts/match_payments.py print_report().
+// Mirrors legacy/scripts/match_payments.py print_report().
 //
 // Verify with:
 //
-//	PYTHONPATH=scripts:. python -c '
+//	PYTHONPATH=legacy/scripts:legacy python -c '
 //	from match_payments import print_report, reconcile, fetch_sheet_data, fetch_exceptions
 //	...'
 func printReconcileReport(w io.Writer, result reconcile.Result, sortedMonths []string) {
@@ -1,8 +1,8 @@
 package membership

-// Golden strings verified against scripts/match_payments.py print_report() on 2026-05-06:
+// Golden strings verified against legacy/scripts/match_payments.py print_report() on 2026-05-06:
 //
-//	PYTHONPATH=scripts:. python -c '
+//	PYTHONPATH=legacy/scripts:legacy python -c '
 //	from match_payments import print_report
 //	result = {
 //	  "members": {
@@ -18,20 +18,20 @@ import (
 	"time"
 )

-// Attendance CSV column indices (mirrors COL_* in scripts/attendance.py)
+// Attendance CSV column indices (mirrors COL_* in legacy/scripts/attendance.py)
 const (
 	colName      = 0
 	colTier      = 1
 	firstDateCol = 3
 )

-// AdultMergedMonths mirrors ADULT_MERGED_MONTHS in scripts/attendance.py.
+// AdultMergedMonths mirrors ADULT_MERGED_MONTHS in legacy/scripts/attendance.py.
 // Source month → target month (source attendance accumulated into target).
 var AdultMergedMonths = map[string]string{
 	"2025-09": "2025-10",
 }

-// JuniorMergedMonths mirrors JUNIOR_MERGED_MONTHS in scripts/attendance.py.
+// JuniorMergedMonths mirrors JUNIOR_MERGED_MONTHS in legacy/scripts/attendance.py.
 var JuniorMergedMonths = map[string]string{
 	"2025-12": "2026-01",
 	"2025-09": "2025-10",
@@ -127,11 +127,11 @@ func (s *realSources) LoadExceptions(ctx context.Context) (map[reconcile.Excepti
 }

 // ---------------------------------------------------------------------------
-// Attendance CSV parsing (ports scripts/attendance.py)
+// Attendance CSV parsing (ports legacy/scripts/attendance.py)
 // ---------------------------------------------------------------------------

 // parseDates returns (columnIndex, YYYY-MM) pairs for all date columns.
-// Ports scripts/attendance.py parse_dates + strftime("%Y-%m").
+// Ports legacy/scripts/attendance.py parse_dates + strftime("%Y-%m").
 func parseDates(header []string) []struct {
 	col   int
 	month string
@@ -200,7 +200,7 @@ func countTrue(row []string, cols []int) int {

 // parseAdultRows converts raw CSV rows to []reconcile.Member.
 // Includes all tiers; fee is 0 for non-A tiers (reconcile filters downstream).
-// Ports scripts/attendance.py get_members_with_fees.
+// Ports legacy/scripts/attendance.py get_members_with_fees.
 func parseAdultRows(rows [][]string) ([]reconcile.Member, []string, error) {
 	if len(rows) < 2 {
 		return nil, nil, nil
@@ -246,7 +246,7 @@ func parseAdultRows(rows [][]string) ([]reconcile.Member, []string, error) {

 // parseJuniorRows builds junior members by merging tier-J rows from the adult tab
 // with the junior sheet, then calling CalculateJuniorFee.
-// Ports scripts/attendance.py get_junior_members_with_fees.
+// Ports legacy/scripts/attendance.py get_junior_members_with_fees.
 func parseJuniorRows(adultRows, juniorRows [][]string) ([]reconcile.Member, []string, error) {
 	if len(adultRows) < 2 || len(juniorRows) < 2 {
 		return nil, nil, nil
@@ -362,7 +362,7 @@ func parseJuniorRows(adultRows, juniorRows [][]string) ([]reconcile.Member, []st
 }

 // ---------------------------------------------------------------------------
-// Payments sheet row parsing (ports scripts/match_payments.py fetch_sheet_data)
+// Payments sheet row parsing (ports legacy/scripts/match_payments.py fetch_sheet_data)
 // ---------------------------------------------------------------------------

 func parseTransactionRows(rows [][]any) ([]reconcile.Transaction, error) {
@@ -402,7 +402,7 @@ func parseTransactionRows(rows [][]any) ([]reconcile.Transaction, error) {
 		if i < 0 || i >= len(row) {
 			return ""
 		}
-		return fmt.Sprint(row[i])
+		return sheets.CellString(row[i])
 	}

 	// getRaw returns row[i] without stringifying — needed for FormatDate to
@@ -425,7 +425,7 @@ func parseTransactionRows(rows [][]any) ([]reconcile.Transaction, error) {
 		amount := parseFloat(amountRaw)

 		var inferredAmount *float64
-		if iv := getVal(row, idxInferred); iv != "" && iv != "<nil>" {
+		if iv := getVal(row, idxInferred); iv != "" {
 			if f := parseFloat(iv); f != 0 {
 				inferredAmount = &f
 			}
@@ -466,7 +466,7 @@ func parseFloat(v any) float64 {
 }

 // ---------------------------------------------------------------------------
-// Exceptions tab parsing (ports scripts/match_payments.py fetch_exceptions)
+// Exceptions tab parsing (ports legacy/scripts/match_payments.py fetch_exceptions)
 // ---------------------------------------------------------------------------

 func parseExceptionRows(rows [][]any) map[reconcile.ExceptionKey]reconcile.Exception {
@@ -123,6 +123,8 @@ func TestLoadTransactions(t *testing.T) {
 			{"Date", "Amount", "manual fix", "Person", "Purpose", "Inferred Amount", "Sender", "VS", "Message", "Bank ID", "Sync ID"},
 			{"2026-04-01", 700.0, "", "Alice", "2026-04", "", "Alice Bank", "", "fee", "", "abc"},
 			{46147.0, 500.0, "", "", "", "", "Bob Bank", "", "platba", "", "def"}, // 46147 serial-day = 2026-05-05
+			// Numeric VS / Bank ID cells arrive as float64 and must stay plain digits.
+			{"2026-05-06", 500.0, "", "", "", "", "Carol Bank", 2609767878.0, "platba", 26123456789.0, "ghi"},
 		},
 	}}
 	s := buildSources(t, &attendance.Fake{}, sh)
@@ -131,8 +133,8 @@ func TestLoadTransactions(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	if len(txns) != 2 {
-		t.Fatalf("want 2 transactions, got %d", len(txns))
+	if len(txns) != 3 {
+		t.Fatalf("want 3 transactions, got %d", len(txns))
 	}
 	if txns[0].Person != "Alice" {
 		t.Errorf("txn[0].Person: want Alice, got %q", txns[0].Person)
@@ -146,6 +148,12 @@ func TestLoadTransactions(t *testing.T) {
 	if txns[1].Date != "2026-05-05" {
 		t.Errorf("txn[1].Date (numeric serial-day): want 2026-05-05, got %q", txns[1].Date)
 	}
+	if txns[2].VS != "2609767878" {
+		t.Errorf("txn[2].VS (numeric cell): want 2609767878, got %q", txns[2].VS)
+	}
+	if txns[2].BankID != "26123456789" {
+		t.Errorf("txn[2].BankID (numeric cell): want 26123456789, got %q", txns[2].BankID)
+	}
 }

 func TestLoadExceptions(t *testing.T) {
@@ -13,7 +13,7 @@ import (
 type monthSums struct{ expected, paid int }

 // buildAdultsResponse constructs the AdultsResponse wire type from reconcile output.
-// Mirrors scripts/views.py:build_adults_view_model.
+// Mirrors legacy/scripts/views.py:build_adults_view_model.
 func buildAdultsResponse(
 	members []domreconcile.Member,
 	sortedMonths []string,
@@ -12,7 +12,7 @@ import (

 // getMonthLabels builds display labels for sortedMonths, merging month names
 // (e.g. "Dec+Jan 2026") when mergedMonths maps a source month into this target.
-// Mirrors scripts/views.py:get_month_labels.
+// Mirrors legacy/scripts/views.py:get_month_labels.
 func getMonthLabels(sortedMonths []string, mergedMonths map[string]string) map[string]string {
 	labels := make(map[string]string, len(sortedMonths))
 	for _, m := range sortedMonths {
@@ -72,14 +72,14 @@ func labelsForMonths(sortedMonths []string, labels map[string]string) []string {
 var questionMarkRe = regexp.MustCompile(`\[\?\]\s*`)

 // canonicalKey returns a normalized form of a person name used for deduplication.
-// Mirrors scripts/match_payments.py:canonical_member_key.
+// Mirrors legacy/scripts/match_payments.py:canonical_member_key.
 func canonicalKey(name string) string {
 	return strings.Join(strings.Fields(czech.Normalize(name)), " ")
 }

 // groupRawPaymentsByPerson groups transactions by the "person" column,
 // canonicalizing names against memberNames where possible.
-// Mirrors scripts/views.py:group_payments_by_person (without the
+// Mirrors legacy/scripts/views.py:group_payments_by_person (without the
 // "Unmatched / Unknown" bucket that is payments-view-specific).
 func groupRawPaymentsByPerson(txns []domreconcile.Transaction, memberNames []string) map[string][]RawTransaction {
 	canonicalByKey := make(map[string]string, len(memberNames))
@@ -11,7 +11,7 @@ import (
 )

 // buildJuniorsResponse constructs the JuniorsResponse wire type from reconcile output.
-// Mirrors scripts/views.py:build_juniors_view_model.
+// Mirrors legacy/scripts/views.py:build_juniors_view_model.
 func buildJuniorsResponse(
 	members []domreconcile.Member,
 	sortedMonths []string,
@@ -242,7 +242,12 @@ func buildJuniorMemberRow(

 		tooltip := ""
 		if (!md.IsUnknown && md.Expected > 0) || paid > 0 {
-			tooltip = fmt.Sprintf("Received: %d, Expected: %d", paid, md.Expected)
+			// Unknown expected (one session, manual review) shows as "?", as in Python.
+			expectedText := strconv.Itoa(md.Expected)
+			if md.IsUnknown {
+				expectedText = "?"
+			}
+			tooltip = fmt.Sprintf("Received: %d, Expected: %s", paid, expectedText)
 		}

 		row.Months = append(row.Months, MonthCell{
@@ -9,7 +9,7 @@ import (
 )

 // buildPaymentsResponse constructs the PaymentsResponse wire type.
-// Mirrors scripts/views.py:build_payments_view_model.
+// Mirrors legacy/scripts/views.py:build_payments_view_model.
 func buildPaymentsResponse(
 	txns []domreconcile.Transaction,
 	memberNames []string,
@@ -1,7 +1,7 @@
 package api

 // VersionResponse is the JSON contract for GET /api/version.
-// Keys match Python's BUILD_META dict (see app.py).
+// Keys match Python's BUILD_META dict (see legacy/app.py).
 type VersionResponse struct {
 	Tag       string `json:"tag"`
 	Commit    string `json:"commit"`
@@ -21,17 +21,26 @@ func NewHTMLHandler(r *Renderer, b BuildInfo, ah *api.Handler, actions ActionHan
 	return &HTMLHandler{renderer: r, build: b, apiHandler: ah, actions: actions}
 }

+// page builds the data shared by every page (nav highlight, build info, sync summary).
+func (h *HTMLHandler) page(active string) PageData {
+	pd := PageData{Active: active, Build: h.build}
+	if h.actions.SyncInfo != nil {
+		pd.SyncInfo = h.actions.SyncInfo()
+	}
+	return pd
+}
+
 func (h *HTMLHandler) ServeAdults(w http.ResponseWriter, r *http.Request) {
 	data, err := h.apiHandler.AssembleAdults(r.Context())
 	if err != nil {
 		h.renderer.Render(w, "adults", AdultsPageData{
-			PageData: PageData{Active: "adults", Build: h.build},
+			PageData: h.page("adults"),
 			Error:    err.Error(),
 		})
 		return
 	}
 	h.renderer.Render(w, "adults", AdultsPageData{
-		PageData: PageData{Active: "adults", Build: h.build},
+		PageData: h.page("adults"),
 		Data:     data,
 	})
 }
@@ -40,13 +49,13 @@ func (h *HTMLHandler) ServeJuniors(w http.ResponseWriter, r *http.Request) {
 	data, err := h.apiHandler.AssembleJuniors(r.Context())
 	if err != nil {
 		h.renderer.Render(w, "juniors", JuniorsPageData{
-			PageData: PageData{Active: "juniors", Build: h.build},
+			PageData: h.page("juniors"),
 			Error:    err.Error(),
 		})
 		return
 	}
 	h.renderer.Render(w, "juniors", JuniorsPageData{
-		PageData: PageData{Active: "juniors", Build: h.build},
+		PageData: h.page("juniors"),
 		Data:     data,
 	})
 }
@@ -55,20 +64,20 @@ func (h *HTMLHandler) ServePayments(w http.ResponseWriter, r *http.Request) {
 	data, err := h.apiHandler.AssemblePayments(r.Context())
 	if err != nil {
 		h.renderer.Render(w, "payments", PaymentsPageData{
-			PageData: PageData{Active: "payments", Build: h.build},
+			PageData: h.page("payments"),
 			Error:    err.Error(),
 		})
 		return
 	}
 	h.renderer.Render(w, "payments", PaymentsPageData{
-		PageData: PageData{Active: "payments", Build: h.build},
+		PageData: h.page("payments"),
 		Data:     data,
 	})
 }

 // ServeSync handles GET /sync-bank: runs sync+infer+flush then renders the result.
 func (h *HTMLHandler) ServeSync(w http.ResponseWriter, r *http.Request) {
-	pd := PageData{Active: "sync", Build: h.build}
+	pd := h.page("sync")

 	if h.actions.BankSync == nil {
 		h.renderer.Render(w, "sync", SyncPageData{
@@ -96,7 +105,7 @@ func (h *HTMLHandler) ServeSync(w http.ResponseWriter, r *http.Request) {
 	}

 	h.renderer.Render(w, "sync", SyncPageData{
-		PageData: pd,
+		PageData: h.page("sync"), // rebuilt so the footer reflects this run
 		Output:   buf.String(),
 		Success:  success,
 	})
@@ -105,7 +114,7 @@ func (h *HTMLHandler) ServeSync(w http.ResponseWriter, r *http.Request) {
 // ServeFlushCacheGET handles GET /flush-cache: renders the confirmation form.
 func (h *HTMLHandler) ServeFlushCacheGET(w http.ResponseWriter, r *http.Request) {
 	h.renderer.Render(w, "flush_cache", FlushPageData{
-		PageData: PageData{Active: "flush", Build: h.build},
+		PageData: h.page("flush"),
 	})
 }

@@ -113,7 +122,7 @@ func (h *HTMLHandler) ServeFlushCacheGET(w http.ResponseWriter, r *http.Request)
 func (h *HTMLHandler) ServeFlushCachePOST(w http.ResponseWriter, r *http.Request) {
 	n, _ := h.apiHandler.FlushCache()
 	h.renderer.Render(w, "flush_cache", FlushPageData{
-		PageData: PageData{Active: "flush", Build: h.build},
+		PageData: h.page("flush"),
 		Flushed:  true,
 		Deleted:  n,
 	})
@@ -314,6 +314,28 @@ func TestServeSync(t *testing.T) {
 	}
 }

+func TestFooterSyncInfo(t *testing.T) {
+	renderer, err := web.NewRenderer()
+	if err != nil {
+		t.Fatalf("NewRenderer: %v", err)
+	}
+	b := web.BuildInfo{Version: "v0", Commit: "abc1234", BuildDate: "2026-01-01"}
+	get := func(actions web.ActionHandlers) string {
+		h := web.NewHTMLHandler(renderer, b, fixtureHandler(t), actions)
+		w := httptest.NewRecorder()
+		h.ServeFlushCacheGET(w, httptest.NewRequest(http.MethodGet, "/flush-cache", nil))
+		return w.Body.String()
+	}
+
+	const info = "last sync 2026-10-08 04:00 (scheduled) ok"
+	if body := get(web.ActionHandlers{SyncInfo: func() string { return info }}); !strings.Contains(body, "| "+info) {
+		t.Errorf("footer missing sync info %q", info)
+	}
+	if body := get(web.ActionHandlers{}); strings.Contains(body, "last sync") {
+		t.Errorf("footer shows sync info although none was provided")
+	}
+}
+
 func TestPaymentQRMarkup(t *testing.T) {
 	renderer, err := web.NewRenderer()
 	if err != nil {
@@ -10,8 +10,9 @@ import (

 // PageData is the view model passed to every HTML template.
 type PageData struct {
-	Active string
-	Build  BuildInfo
+	Active   string
+	Build    BuildInfo
+	SyncInfo string // last/next bank sync summary shown in the footer; empty hides it
 }

 // AdultsPageData is the view model for the /adults HTML page.
@@ -26,6 +26,9 @@ type ActionHandlers struct {
 	// BankSync runs sync+infer and writes a human-readable log to out.
 	// nil disables the /sync-bank action (renders an error instead).
 	BankSync func(ctx context.Context, out io.Writer) error
+	// SyncInfo returns a one-line summary of the last and next bank sync for
+	// the page footer. nil or an empty result shows nothing.
+	SyncInfo func() string
 }

 // Run registers routes and starts the HTTP server on addr.
@@ -1,3 +1,3 @@
 {{define "footer"}}
-<div class="footer">{{.Build.Version}}@{{.Build.Commit}} | built {{.Build.BuildDate}}</div>
+<div class="footer">{{.Build.Version}}@{{.Build.Commit}} | built {{.Build.BuildDate}}{{if .SyncInfo}} | {{.SyncInfo}}{{end}}</div>
 {{end}}
@@ -9,7 +9,7 @@
  {{end}}
  <pre class="sync-log{{if not .Success}} sync-log--error{{end}}">{{.Output}}</pre>
 {{else}}
-  <p class="description">Fetches Fio transactions for the current year, infers payment details, and flushes the cache.</p>
+  <p class="description">Fetches Fio transactions for the current year and the last two months of the previous one, infers payment details, and flushes the cache.</p>
 {{end}}
 <p><a href="/sync-bank" class="btn">{{if .Output}}Run Again{{else}}Run Sync{{end}}</a></p>
 {{end}}
@@ -85,10 +85,10 @@ git diff go/tests/fixtures/   # review changes before committing
 To refresh a single function:

 ```bash
-PYTHONPATH=scripts:. python3 scripts/capture_fixtures.py --func normalize --all \
+PYTHONPATH=legacy/scripts:legacy python3 legacy/scripts/capture_fixtures.py --func normalize --all \
  | while IFS= read -r line; do
      id=$(echo "$line" | python3 -c "import sys,json; print(json.load(sys.stdin)['case'])")
-      echo "$line" | python3 scripts/scrub_fixtures.py \
+      echo "$line" | python3 legacy/scripts/scrub_fixtures.py \
        > go/tests/fixtures/pure/normalize/${id}.json
    done
 ```
@@ -120,7 +120,7 @@ verify that no real roster names appear in their `member_names` arrays.

 ## Adding a new fixture

-1. Add a seed to `scripts/_fixture_seeds.py` under `SEEDS[("func_name", "case_id")]`.
+1. Add a seed to `legacy/scripts/_fixture_seeds.py` under `SEEDS[("func_name", "case_id")]`.
 2. Add `In`/`Out` struct fields to `go/tests/parity/parityio.go` if the function
   is new.
 3. Run the single-file capture recipe above and review the diff.
@@ -0,0 +1,12 @@
+{
+  "case": "one_session_free_july",
+  "func": "scripts.attendance.calculate_fee",
+  "captured_at": "2026-10-08",
+  "input": {
+    "attendance_count": 1,
+    "month_key": "2026-07"
+  },
+  "output": {
+    "fee": 0
+  }
+}
@@ -1,12 +1,12 @@
 {
  "case": "two_sessions_default_fallback",
  "func": "scripts.attendance.calculate_fee",
-  "captured_at": "2026-05-06",
+  "captured_at": "2026-10-08",
  "input": {
    "attendance_count": 2,
    "month_key": "2099-01"
  },
  "output": {
-    "fee": 700
+    "fee": 600
  }
 }
@@ -0,0 +1,12 @@
+{
+  "case": "two_sessions_free_july",
+  "func": "scripts.attendance.calculate_fee",
+  "captured_at": "2026-10-08",
+  "input": {
+    "attendance_count": 2,
+    "month_key": "2026-07"
+  },
+  "output": {
+    "fee": 0
+  }
+}
@@ -0,0 +1,12 @@
+{
+  "case": "two_sessions_october",
+  "func": "scripts.attendance.calculate_fee",
+  "captured_at": "2026-10-08",
+  "input": {
+    "attendance_count": 2,
+    "month_key": "2026-10"
+  },
+  "output": {
+    "fee": 600
+  }
+}
@@ -0,0 +1,36 @@
+{
+  "case": "other_not_at_start",
+  "func": "scripts.match_payments.infer_transaction_details",
+  "captured_at": "2026-10-08",
+  "input": {
+    "tx": {
+      "sender": "Jana Novakova",
+      "message": "leden other: dres",
+      "user_id": "",
+      "date": {
+        "type": "string",
+        "value": "2026-04-15"
+      }
+    },
+    "member_names": [
+      "Alžběta Testovická",
+      "Tomáš Fiktivný (Tov)",
+      "Pavel Smutný (Štrúdl)",
+      "Jana Nováková",
+      "Adam Novák"
+    ],
+    "default_year": 2026
+  },
+  "output": {
+    "matches": [
+      {
+        "name": "Jana Nováková",
+        "confidence": "auto"
+      }
+    ],
+    "months": [
+      "2026-01"
+    ],
+    "search_text": "Jana Novakova leden other: dres "
+  }
+}
@@ -0,0 +1,36 @@
+{
+  "case": "other_prefix",
+  "func": "scripts.match_payments.infer_transaction_details",
+  "captured_at": "2026-10-08",
+  "input": {
+    "tx": {
+      "sender": "Jana Novakova",
+      "message": "other: tournament leden 2026",
+      "user_id": "",
+      "date": {
+        "type": "string",
+        "value": "2026-04-15"
+      }
+    },
+    "member_names": [
+      "Alžběta Testovická",
+      "Tomáš Fiktivný (Tov)",
+      "Pavel Smutný (Štrúdl)",
+      "Jana Nováková",
+      "Adam Novák"
+    ],
+    "default_year": 2026
+  },
+  "output": {
+    "matches": [
+      {
+        "name": "Jana Nováková",
+        "confidence": "auto"
+      }
+    ],
+    "months": [
+      "other: tournament leden 2026"
+    ],
+    "search_text": "Jana Novakova other: tournament leden 2026 "
+  }
+}
@@ -0,0 +1,31 @@
+{
+  "case": "other_prefix_uppercase",
+  "func": "scripts.match_payments.infer_transaction_details",
+  "captured_at": "2026-10-08",
+  "input": {
+    "tx": {
+      "sender": "Test Payer",
+      "message": " Other: Dres ",
+      "user_id": "",
+      "date": {
+        "type": "string",
+        "value": "2026-04-15"
+      }
+    },
+    "member_names": [
+      "Alžběta Testovická",
+      "Tomáš Fiktivný (Tov)",
+      "Pavel Smutný (Štrúdl)",
+      "Jana Nováková",
+      "Adam Novák"
+    ],
+    "default_year": 2026
+  },
+  "output": {
+    "matches": [],
+    "months": [
+      "Other: Dres"
+    ],
+    "search_text": "Test Payer  Other: Dres  "
+  }
+}
@@ -0,0 +1,69 @@
+{
+  "case": "11_other_message_fallback",
+  "func": "scripts.match_payments.reconcile",
+  "captured_at": "2026-10-08",
+  "input": {
+    "members": [
+      {
+        "name": "Member_d035d9f9",
+        "tier": "A",
+        "fees": {
+          "2026-01": [
+            750,
+            3
+          ]
+        }
+      }
+    ],
+    "sorted_months": [
+      "2026-01"
+    ],
+    "transactions": [
+      {
+        "date": "2026-01-10",
+        "amount": 300,
+        "manual_fix": "",
+        "person": "",
+        "purpose": "",
+        "inferred_amount": 300,
+        "sender": "Member_d035d9f9",
+        "message": "other: tournament",
+        "bank_id": ""
+      }
+    ],
+    "exceptions": [],
+    "default_year": 2026
+  },
+  "output": {
+    "members": {
+      "Member_d035d9f9": {
+        "tier": "A",
+        "months": {
+          "2026-01": {
+            "expected": 750,
+            "original_expected": 750,
+            "attendance_count": 3,
+            "exception": null,
+            "paid": 0.0,
+            "transactions": []
+          }
+        },
+        "other_transactions": [
+          {
+            "amount": 300.0,
+            "date": "2026-01-10",
+            "sender": "Member_d035d9f9",
+            "message": "other: tournament",
+            "purpose": "other: tournament",
+            "confidence": "auto"
+          }
+        ],
+        "total_balance": -750
+      }
+    },
+    "unmatched": [],
+    "credits": {
+      "Member_d035d9f9": -750
+    }
+  }
+}
@@ -13,7 +13,7 @@ import (

 // Verify expected values against live Python:
 //
-//	PYTHONPATH=scripts:. python3 -c "from match_payments import _build_name_variants; print(_build_name_variants('František Vrbík (Štrúdl)'))"
+//	PYTHONPATH=legacy/scripts:legacy python3 -c "from match_payments import _build_name_variants; print(_build_name_variants('František Vrbík (Štrúdl)'))"

 func TestBuildNameVariantsParity(t *testing.T) {
 	t.Parallel()
@@ -12,7 +12,7 @@ import (

 // Verify expected values against live Python:
 //
-//	PYTHONPATH=scripts:. python3 -c "from attendance import calculate_fee; print(calculate_fee(2, '2026-01'))"
+//	PYTHONPATH=legacy/scripts:legacy python3 -c "from attendance import calculate_fee; print(calculate_fee(2, '2026-01'))"

 func TestCalculateFeeParity(t *testing.T) {
 	t.Parallel()
@@ -12,7 +12,7 @@ import (

 // Verify expected values against live Python:
 //
-//	PYTHONPATH=scripts:. python3 -c "from attendance import calculate_junior_fee; print(calculate_junior_fee(1, '2026-01'))"
+//	PYTHONPATH=legacy/scripts:legacy python3 -c "from attendance import calculate_junior_fee; print(calculate_junior_fee(1, '2026-01'))"

 func TestCalculateJuniorFeeParity(t *testing.T) {
 	t.Parallel()
@@ -12,7 +12,7 @@ import (

 // Verify expected values against live Python:
 //
-//	PYTHONPATH=scripts:. python3 -c "from match_payments import format_date; print(format_date(46027))"
+//	PYTHONPATH=legacy/scripts:legacy python3 -c "from match_payments import format_date; print(format_date(46027))"

 func TestFormatDateParity(t *testing.T) {
 	t.Parallel()
@@ -12,7 +12,7 @@ import (

 // Verify expected values against live Python:
 //
-//	PYTHONPATH=scripts:. python3 -c "
+//	PYTHONPATH=legacy/scripts:legacy python3 -c "
 //	from sync_fio_to_sheets import generate_sync_id
 //	print(generate_sync_id({'date':'2026-01-15','amount':750.0,'currency':'CZK','sender':'Test','vs':'123','message':'x','bank_id':'1'}))"
 //
@@ -12,7 +12,7 @@ import (

 // Verify expected values against live Python:
 //
-//	PYTHONPATH=scripts:. python3 -c "
+//	PYTHONPATH=legacy/scripts:legacy python3 -c "
 //	from match_payments import infer_transaction_details
 //	print(infer_transaction_details({'sender':'Henrietta Ottová','message':'leden 2026','user_id':'','date':'2026-01-15'}, ['Henrietta Ottová']))"

@@ -12,7 +12,7 @@ import (

 // Verify expected values against live Python:
 //
-//	PYTHONPATH=scripts:. python3 -c "from match_payments import match_members; print(match_members('henrietta ottova leden', ['Henrietta Ottová','Jan Novák']))"
+//	PYTHONPATH=legacy/scripts:legacy python3 -c "from match_payments import match_members; print(match_members('henrietta ottova leden', ['Henrietta Ottová','Jan Novák']))"

 func TestMatchMembersParity(t *testing.T) {
 	t.Parallel()
@@ -12,7 +12,7 @@ import (

 // Verify expected values against live Python:
 //
-//	PYTHONPATH=scripts:. python3 -c "from czech_utils import normalize; print(normalize('štefan čakrtový'))"
+//	PYTHONPATH=legacy/scripts:legacy python3 -c "from czech_utils import normalize; print(normalize('štefan čakrtový'))"

 func TestNormalizeParity(t *testing.T) {
 	t.Parallel()
@@ -12,7 +12,7 @@ import (

 // Verify expected values against live Python:
 //
-//	PYTHONPATH=scripts:. python3 -c "from infer_payments import parse_czk_amount; print(parse_czk_amount('1.500,00'))"
+//	PYTHONPATH=legacy/scripts:legacy python3 -c "from infer_payments import parse_czk_amount; print(parse_czk_amount('1.500,00'))"
 //
 // Note: Go's ParseCZK returns an error for unparseable input; Python returns 0.0.
 // Callers should discard the error to match Python semantics: v, _ := money.ParseCZK(s)
@@ -13,7 +13,7 @@ import (

 // Verify expected values against live Python:
 //
-//	PYTHONPATH=scripts:. python3 -c "from czech_utils import parse_month_references; print(parse_month_references('prosinec-leden', 2026))"
+//	PYTHONPATH=legacy/scripts:legacy python3 -c "from czech_utils import parse_month_references; print(parse_month_references('prosinec-leden', 2026))"

 func TestParseMonthReferencesParity(t *testing.T) {
 	t.Parallel()
@@ -6,7 +6,7 @@
 //
 // Verify expected values against live Python:
 //
-//	PYTHONPATH=scripts:. python3 -c "
+//	PYTHONPATH=legacy/scripts:legacy python3 -c "
 //	from match_payments import reconcile
 //	# ... build members/months/txs/exceptions...
 //	import json; print(json.dumps(reconcile(...)))"
@@ -1,6 +1,6 @@
 .git
 .venv
-__pycache__
-*.pyc
+**/__pycache__
+**/*.pyc
 .claude
 .gemini
@@ -30,7 +30,7 @@ from views import (
    adapt_junior_members,
 )
 from cache_utils import get_sheet_modified_time, read_cache, write_cache, _LAST_CHECKED, flush_cache
-from sync_fio_to_sheets import sync_to_sheets
+from sync_fio_to_sheets import sync_to_sheets, default_sync_window
 from infer_payments import infer_payments

 def get_cached_data(cache_key, sheet_id, fetch_func, *args, serialize=None, deserialize=None, **kwargs):
@@ -121,6 +121,8 @@ def flush_cache_endpoint():
    deleted = flush_cache()
    return render_template("flush-cache.html", flushed=True, deleted=deleted)

+# Scheduled (daily) bank sync exists only in the Go server, on purpose: this
+# app is legacy and being phased out. Here the sync runs only on request.
@app.route("/sync-bank")
 def sync_bank():
    import contextlib
@@ -128,13 +130,14 @@ def sync_bank():
    success = True
    try:
        with contextlib.redirect_stdout(output), contextlib.redirect_stderr(output):
-            # sync_to_sheets: equivalent of make sync-2026
-            output.write("=== Syncing Fio transactions (2026) ===\n")
+            # sync_to_sheets: equivalent of make sync-year (same default window as Go)
+            date_from, date_to = default_sync_window()
+            output.write(f"=== Syncing Fio transactions ({date_from} to {date_to}) ===\n")
            sync_to_sheets(
                spreadsheet_id=PAYMENTS_SHEET_ID,
                credentials_path=CREDENTIALS_PATH,
-                date_from_str="2026-01-01",
-                date_to_str="2026-12-31",
+                date_from_str=date_from,
+                date_to_str=date_to,
                sort_by_date=True,
            )
            output.write("\n=== Inferring payment details ===\n")
@@ -179,7 +182,9 @@ def api_adults():
        datetime.now().strftime("%Y-%m"),
        attendance_url=attendance_url, payments_url=payments_url, bank_account=BANK_ACCOUNT,
    )
-    return jsonify(_unwrap_view_model_for_api(vm))
+    out = _unwrap_view_model_for_api(vm)
+    out["months_to_show"] = MONTHS_TO_SHOW
+    return jsonify(out)

@app.route("/api/juniors")
 def api_juniors():
@@ -203,7 +208,9 @@ def api_juniors():
        datetime.now().strftime("%Y-%m"),
        attendance_url=attendance_url, payments_url=payments_url, bank_account=BANK_ACCOUNT,
    )
-    return jsonify(_unwrap_view_model_for_api(vm))
+    out = _unwrap_view_model_for_api(vm)
+    out["months_to_show"] = MONTHS_TO_SHOW
+    return jsonify(out)

@app.route("/api/payments")
 def api_payments():
@@ -17,7 +17,7 @@ RUN pip install --no-cache-dir \
    pillow \
    gunicorn

-COPY app.py Makefile ./
+COPY app.py ./
 COPY scripts/ ./scripts/
 COPY templates/ ./templates/

@@ -1,7 +1,7 @@
 [project]
 name = "fuj-management"
 version = "0.10"
-description = "Management tools for FUJ (Frisbee Ultimate Jablonec)"
+description = "Legacy Python implementation of the FUJ (Frisbee Ultimate Jablonec) management tools; the Go implementation in ../go is primary"
 dependencies = [
    "flask>=3.1.3",
    "google-api-python-client>=2.162.0",
@@ -115,6 +115,15 @@ SEEDS[("calculate_fee", "two_sessions_reduced_march")] = {
 SEEDS[("calculate_fee", "two_sessions_default_fallback")] = {
    "attendance_count": 2, "month_key": "2099-01"
 }
+SEEDS[("calculate_fee", "two_sessions_free_july")] = {
+    "attendance_count": 2, "month_key": "2026-07"
+}
+SEEDS[("calculate_fee", "one_session_free_july")] = {
+    "attendance_count": 1, "month_key": "2026-07"
+}
+SEEDS[("calculate_fee", "two_sessions_october")] = {
+    "attendance_count": 2, "month_key": "2026-10"
+}


 # --- calculate_junior_fee ---
@@ -349,6 +358,36 @@ SEEDS[("infer_transaction_details", "serial_date")] = {
    "member_names": _ROSTER,
    "default_year": 2026,
 }
+SEEDS[("infer_transaction_details", "other_prefix")] = {
+    "tx": {
+        "sender": "Jana Novakova",
+        "message": "other: tournament leden 2026",
+        "user_id": "",
+        "date": {"type": "string", "value": "2026-04-15"},
+    },
+    "member_names": _ROSTER,
+    "default_year": 2026,
+}
+SEEDS[("infer_transaction_details", "other_prefix_uppercase")] = {
+    "tx": {
+        "sender": "Test Payer",
+        "message": " Other: Dres ",
+        "user_id": "",
+        "date": {"type": "string", "value": "2026-04-15"},
+    },
+    "member_names": _ROSTER,
+    "default_year": 2026,
+}
+SEEDS[("infer_transaction_details", "other_not_at_start")] = {
+    "tx": {
+        "sender": "Jana Novakova",
+        "message": "leden other: dres",
+        "user_id": "",
+        "date": {"type": "string", "value": "2026-04-15"},
+    },
+    "member_names": _ROSTER,
+    "default_year": 2026,
+}
 SEEDS[("infer_transaction_details", "no_member_no_month")] = {
    "tx": {
        "sender": "Unknown Person",
@@ -467,6 +506,14 @@ SEEDS[("reconcile", "07_other_purpose_split")] = _reconcile_seed(
    transactions=[_tx("2026-01-10", 800, "Alice Dvořák, Bob Kratochvíl", "other:tournament", sender="Alice Dvořák")],
 )

+# 11 — message starts with "other:" on a row not yet inferred (empty Person/Purpose):
+# goes to the other ledger, the month stays unpaid
+SEEDS[("reconcile", "11_other_message_fallback")] = _reconcile_seed(
+    members=[_member("Alice Dvořák", "A", {"2026-01": (750, 3)})],
+    sorted_months=["2026-01"],
+    transactions=[_tx("2026-01-10", 300, "", "", sender="Alice Dvořák", message="other: tournament")],
+)
+
 # 08 — junior with attendance=1 (expected=0 in reconcile, unknown in UI)
 SEEDS[("reconcile", "08_junior_question_mark")] = _reconcile_seed(
    members=[_member("Karel Junior", "A", {"2026-01": (0, 1)})],
@@ -10,7 +10,7 @@ from config import ATTENDANCE_SHEET_ID as SHEET_ID, JUNIOR_SHEET_GID
 EXPORT_URL = f"https://docs.google.com/spreadsheets/d/{SHEET_ID}/export?format=csv&gid=0"
 JUNIOR_EXPORT_URL = f"https://docs.google.com/spreadsheets/d/{SHEET_ID}/export?format=csv&gid={JUNIOR_SHEET_GID}"

-ADULT_FEE_DEFAULT = 700  # CZK, for 2+ practices in a month
+ADULT_FEE_DEFAULT = 600  # CZK, for 2+ practices in a month
 ADULT_FEE_SINGLE = 200  # CZK, for exactly 1 practice in a month
 ADULT_FEE_MONTHLY_RATE = {
    "2025-09": 750,
@@ -23,8 +23,12 @@ ADULT_FEE_MONTHLY_RATE = {
    "2026-04": 700,
    "2026-05": 450,
    "2026-06": 600,
-    "2026-07": 600,
-    "2026-08": 600,
+    "2026-07": 0,
+    "2026-08": 0,
+    "2026-09": 600,
+    "2026-10": 600,
+    "2026-11": 600,
+    "2026-12": 600,
 }

 JUNIOR_FEE_DEFAULT = 500  # CZK for 2+ practices
@@ -91,12 +95,13 @@ def group_by_month(dates: list[tuple[int, datetime]], merged_months: dict[str, s


 def calculate_fee(attendance_count: int, month_key: str) -> int:
-    """Apply fee rules: 0 → 0, 1 → 200, 2+ → configured rate (default 750)."""
+    """Apply fee rules: 0 → 0, 1 → 200 (capped at the month's rate), 2+ → configured rate (default 600)."""
    if attendance_count == 0:
        return 0
+    rate = ADULT_FEE_MONTHLY_RATE.get(month_key, ADULT_FEE_DEFAULT)
    if attendance_count == 1:
-        return ADULT_FEE_SINGLE
-    return ADULT_FEE_MONTHLY_RATE.get(month_key, ADULT_FEE_DEFAULT)
+        return min(ADULT_FEE_SINGLE, rate)
+    return rate


 def calculate_junior_fee(attendance_count: int, month_key: str) -> str | int:
@@ -1,14 +1,15 @@
 #!/usr/bin/env bash
 # Regenerate the full fixture corpus.
 # Safe to re-run — always overwrites.
-# Requires: tmp/*_cache.json present (for real-data seeds for parse_month_references and match_members).
+# Requires: legacy/tmp/*_cache.json present (for real-data seeds for parse_month_references and match_members).

 set -euo pipefail

-REPO="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+LEGACY="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+REPO="$(cd "$LEGACY/.." && pwd)"
 FIXTURES="$REPO/go/tests/fixtures"
-CAPTURE_CMD="PYTHONPATH=$REPO/scripts:. python3 $REPO/scripts/capture_fixtures.py"
-SCRUB_CMD="python3 $REPO/scripts/scrub_fixtures.py"
+CAPTURE_CMD="PYTHONPATH=$LEGACY/scripts:$LEGACY python3 $LEGACY/scripts/capture_fixtures.py"
+SCRUB_CMD="python3 $LEGACY/scripts/scrub_fixtures.py"

 run_func() {
    local func="$1"
@@ -18,7 +19,7 @@ run_func() {
    eval "$CAPTURE_CMD --func $func --all" | while IFS= read -r line; do
        case_id="$(python3 -c "import sys,json; print(json.loads('''$line''')['case'])" 2>/dev/null || \
                   echo "$line" | python3 -c "import sys,json; d=json.load(sys.stdin); print(d['case'])")"
-        echo "$line" | python3 "$REPO/scripts/scrub_fixtures.py" > "$dir/${case_id}.json"
+        echo "$line" | python3 "$LEGACY/scripts/scrub_fixtures.py" > "$dir/${case_id}.json"
    done
 }

@@ -39,7 +40,7 @@ echo "==> Capturing reconcile fixtures..."
 mkdir -p "$FIXTURES/reconcile"
 eval "$CAPTURE_CMD --func reconcile --all" | while IFS= read -r line; do
    case_id="$(echo "$line" | python3 -c "import sys,json; d=json.load(sys.stdin); print(d['case'])")"
-    echo "$line" | python3 "$REPO/scripts/scrub_fixtures.py" > "$FIXTURES/reconcile/${case_id}.json"
+    echo "$line" | python3 "$LEGACY/scripts/scrub_fixtures.py" > "$FIXTURES/reconcile/${case_id}.json"
 done

 echo "==> Done. Review with: git diff go/tests/fixtures/"
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
kacerrandClaude Opus 5.5	bbad19d822	feat(infer): messages starting with "other:" are not monthly fees When the bank message starts with "other:" (case-insensitive), inference does not look for a month, neither in the text nor from the payment date. The trimmed message is written to Purpose, so reconcile books the payment as an "other" transaction for the person instead of a monthly fee. Messages containing "other:" elsewhere are unchanged. - matching.IsOtherPurpose / is_other_purpose shared by inference and reconcile - reconcile applies the rule to rows not yet processed by inference - no person found: Purpose is still written, row shows as unmatched - implemented in Go and legacy Python; four new parity fixtures Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-08 12:37:03 +02:00
kacerrandClaude Opus 5.5	294c40fa42	fix(go): show "Expected: ?" in junior tooltip for unknown fees A junior month with one session has an unknown expected fee. When such a month had a payment, the Go tooltip printed "Expected: 0" where Python prints "Expected: ?", which made make parity fail on /api/juniors. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-08 12:37:03 +02:00
kacerr	d5da993690	Merge pull request 'feat(go): scheduled bank sync (Go only)' (#48 ) from feat/scheduled-bank-sync into main Reviewed-on: #48	2026-10-08 12:27:14 +02:00
kacerrandClaude Opus 5.5	2c2db60fe7	feat(go): scheduled bank sync (Go only) The Go server now runs sync -> infer -> flush-cache by itself at the times in SYNC_SCHEDULE (comma-separated HH:MM, default 04:00, "off" disables), read in SYNC_TZ (default Europe/Prague). Nothing runs at startup; an invalid value stops the server with an error. - internal/scheduler: time-of-day parsing, Next, and the run loop - banksync.Runner: one lock shared by /sync-bank and the scheduler so runs never overlap, plus the status of the last run - footer shows the last sync since start and the next scheduled run - binary embeds time/tzdata because the Alpine image has no zone data Deliberately not implemented in the legacy Python app, which is being phased out; recorded in CLAUDE.md under "Deliberately Go-only features". Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-08 12:17:15 +02:00
kacerr	1d5a1c95d2	Merge pull request 'fix(sync): dashboard sync covers current year plus Nov-Dec of previous' (#47 ) from fix/sync-window-prev-year-overlap into main Reviewed-on: #47	2026-10-08 12:05:16 +02:00
kacerrandClaude Opus 5.5	62c6dc2ca0	fix(sync): dashboard sync covers current year plus Nov-Dec of previous /sync-bank now uses one shared default window in both implementations: 1 November of the previous year to 31 December of the current year. Payments dated around New Year are picked up in January; duplicates are still filtered by Sync ID. Python used a hardcoded 2026 window and would have stopped syncing on 2027-01-01; Go used the current calendar year only. Adds make sync-year [YEAR=N] with the same window. The CLI default without flags (last 30 days) is unchanged. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-08 12:04:59 +02:00
kacerr	23633f8cb2	Merge pull request 'feat(fees): adult rates for 2026-07 to 2026-12, default 600' (#46 ) from feat/adult-fees-2026-h2 into main Reviewed-on: #46	2026-10-08 11:53:55 +02:00
kacerrandClaude Opus 5.5	2d8aada8d6	feat(fees): adult rates for 2026-07 to 2026-12, default 600 - Default adult monthly rate 700 -> 600 CZK - 2026-07 and 2026-08 set to 0; 2026-09 through 2026-12 added at 600 - Single-session fee is capped at the month's rate, so a 0-rate month is free for one session as well - Mirrored in Go and legacy Python; new calculate_fee parity fixtures Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-08 11:53:18 +02:00
kacerr	14cdbeac21	Merge pull request 'fix(ci): remove kubernetes-deploy workflow that leaked secrets to logs' (#45 ) from fix/remove-leaky-k8s-deploy-workflow into main Reviewed-on: #45	2026-10-08 11:49:02 +02:00
kacerrandClaude Opus 5.5	5b162d0030	fix(ci): remove kubernetes-deploy workflow that leaked secrets to logs The workflow ran on every push to every branch and deployed nothing. It echoed the raw Vault login response, the Kanidm API token response and the OIDC token response to the job log, dumped the environment, and configured kubectl with --insecure-skip-tls-verify. Deployment is handled by gitops-update.yaml. Docs updated to describe that flow; T1 marked done in the cleanup task list. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-08 11:48:35 +02:00
kacerr	cfdc5cbb2a	Merge pull request 'fix: VS always a string; months_to_show in Python JSON API' (#44 ) from fix/api-parity-vs-months-to-show into main Deploy to K8s / deploy (push) Successful in 13s Details Reviewed-on: #44	2026-10-08 11:45:53 +02:00
kacerr	e2ae5a7ec4	Merge pull request 'refactor: move Python implementation to legacy/, make Go primary' (#43 ) from feat/python-to-legacy into main Deploy to K8s / deploy (push) Successful in 13s Details Reviewed-on: #43	2026-10-08 11:45:11 +02:00
kacerrandClaude Opus 5.5	82406935ed	docs: add pre-feature cleanup task list and API parity plan Deploy to K8s / deploy (push) Successful in 14s Details Task list from the 2026-10-08 repo audit, plus the plan for the two parity fixes found while validating the legacy/ move. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-08 11:34:20 +02:00
kacerrandClaude Opus 5.5	e7c8101c3b	fix(python): return months_to_show from the JSON API Go returns months_to_show in /api/adults and /api/juniors; the Python API did not, so make parity failed on both routes. The Python HTML pages already had the feature. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-08 11:34:20 +02:00
kacerrandClaude Opus 5.5	97f94afa02	fix: treat VS as a string on read and write Go stringified sheet cells with fmt.Sprint, so a numeric VS read with UNFORMATTED_VALUE was rendered as 2.609767878e+09. Text columns of the payments sheet now go through sheets.CellString, which never uses exponent form; bank inference uses the same helper. Both sync implementations now append VS as a text cell so Sheets keeps it a string and leading zeros survive. Existing rows are not rewritten. Python already read VS as a digit string; a regression test pins that. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-08 11:34:20 +02:00
kacerrandClaude Opus 5.5	022facc957	refactor: move Python implementation to legacy/, make Go primary Deploy to K8s / deploy (push) Successful in 20s Details Go (go/) becomes the primary implementation. The original Python version moves to legacy/ and is kept runnable; new features are still built in both (see the Dual implementation rule in CLAUDE.md). - git mv app.py, scripts/, templates/, tests/, pyproject.toml, uv.lock and build/ into legacy/ - Makefile: Python targets point at legacy/, venv in legacy/.venv, CREDENTIALS_PATH exported for the root .secret/ file - CI and make image build the Python image with legacy/ as context; the Makefile is no longer copied into the image - legacy/.dockerignore moved to the context root so it takes effect - CLAUDE.md, docs/README.md, Go comments, fixture README, capture script and VS Code launch config updated to the new layout Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-08 11:33:57 +02:00
kacerr	96c14f0b22	Merge pull request 'fix(ci): resolve image tag via Gitea API instead of artifact' (#42 ) from fix/gitops-tag-via-api into main Deploy to K8s / deploy (push) Successful in 8s Details Build and Push / build (push) Successful in 8s Details Build and Push / build-go (push) Successful in 40s Details Reviewed-on: #42	2026-06-12 19:59:40 +02:00
kacerrandClaude Opus 4.8	6d7dbfa624	fix(ci): resolve image tag via Gitea API instead of artifact Deploy to K8s / deploy (push) Successful in 9s Details upload/download-artifact@v4 is not supported on Gitea (GHES). Replace with a direct Gitea API call in gitops-update: look up the tag name whose commit SHA matches workflow_run.head_sha. Reverts the artifact upload from build.yaml; no changes to build.yaml logic. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-12 19:59:24 +02:00
kacerr	c00111cff1	Merge pull request 'fix(ci): pass Go image tag from build to gitops via artifact' (#41 ) from fix/gitops-pass-tag-via-artifact into main Deploy to K8s / deploy (push) Successful in 8s Details Build and Push / build (push) Successful in 7s Details Build and Push / build-go (push) Failing after 42s Details Reviewed-on: #41	2026-06-12 19:53:19 +02:00
kacerrandClaude Opus 4.8	d263d8a534	fix(ci): pass Go image tag from build to gitops via artifact Deploy to K8s / deploy (push) Successful in 14s Details github.event.workflow_run.head_branch is not populated for tag pushes in Gitea Actions, causing the image tag to resolve to empty (-go suffix with no version). Fix: build-go uploads the full image reference as a one-line artifact; gitops-update downloads it via download-artifact@v4 with run-id from the workflow_run event. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-12 19:52:02 +02:00
kacerr	af030c8255	Merge pull request 'fix(ci): separate git credentials from --git-repo URL to fix tea pr create' (#40 ) from fix/gitops-tea-url into main Build and Push / build (push) Successful in 42s Details Build and Push / build-go (push) Successful in 1m23s Details Deploy to K8s / deploy (push) Successful in 10s Details Reviewed-on: #40	2026-06-12 19:39:31 +02:00
kacerrandClaude Opus 4.8	ad127d36ea	fix(ci): separate git credentials from --git-repo URL to fix tea pr create Deploy to K8s / deploy (push) Successful in 12s Details tea pr create matches the remote URL against the configured login URL to auto-detect owner/repo. Embedding credentials in the URL (user:token@host) breaks that match and produces "path segment [0] is empty". Store creds via git credential helper instead and pass a clean URL to uh-cli. Also adds set -x to the PR step for shell-level tracing in CI logs. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-12 19:37:29 +02:00
kacerrandClaude Opus 4.8	29938d7a0c	chore(changelog): log gitops-update workflow addition Deploy to K8s / deploy (push) Successful in 8s Details Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-12 19:32:20 +02:00
kacerr	1df1863725	Merge pull request 'feat(ci): gitops image-update PR workflow for home-kubernetes' (#39 ) from feat/gitops-pr-action into main Deploy to K8s / deploy (push) Successful in 11s Details Reviewed-on: #39	2026-06-12 19:31:51 +02:00
kacerrandClaude Opus 4.8	995abfacb2	feat(ci): add gitops-update workflow to open image-bump PR in home-kubernetes Deploy to K8s / deploy (push) Successful in 12s Details After a successful Go image build, uh-cli opens a PR against kacerr/home-kubernetes that bumps the fuj-management Deployment (namespace fuj) to the newly published image tag. Supports workflow_run auto-trigger and workflow_dispatch with dry-run option. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-12 19:28:29 +02:00
kacerrandClaude Opus 4.8	f047150004	fix(tests): derive fee test expectations from constants, not hardcoded values Deploy to K8s / deploy (push) Successful in 9s Details Configured-month cases now read expected values from AdultFeeMonthlyRate / JuniorFeeMonthlyRate via a mustRate helper that panics if a test month is removed from the map. Fallback cases use AdultFeeDefault / JuniorFeeDefault. This way the tests verify dispatch logic (0/1/2+ branching, map vs. fallback) without breaking when rates are intentionally updated in the map. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-08 11:37:52 +02:00