Instead of hiding older months entirely, show all months in the from/to
selectors but default the from-select to the last MONTHS_TO_SHOW months
on page load. The "All" button resets to full history as before.
Python: passes months_to_show to render_template, IIFE sets fromSelect.value.
Go: adds MonthsToShow to response structs, data-months-to-show attr in
templates, filters.js reads it and defaults fromSelect after hideFutureMonths.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Show only the last MONTHS_TO_SHOW months (default 5) in the fee table columns
so the page fits on screen without horizontal scrolling. Reconciliation still
runs over the full month history so balances, credits, and debts are unaffected.
Set MONTHS_TO_SHOW=0 to show all months. Implemented in both Python and Go.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Juniors with exactly 1 session get expected='?' (manual-review marker
from attendance.py). The fill-first allocation block summed and cast
expected values numerically without guarding against this, causing a
TypeError: unsupported operand type(s) for +: 'int' and 'str' on the
/juniors route whenever any matched payment landed on such a month.
Add _expected_amount() helper that coerces non-numeric markers to 0
(same convention the final-balance calculation at line 512 already used)
and apply it in the two failing spots plus the existing isinstance check.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
