add docker build, makefile, and some more shit before we move forward

build/entrypoint.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+set -euo pipefail
+
+DATA_DIR="/app/data"
+
+# Create symlinks so scripts (which write to /app/) persist data to the volume
+for f in byty_sreality.json byty_realingo.json byty_bezrealitky.json \
+         byty_idnes.json byty_psn.json byty_cityhome.json byty_merged.json \
+         mapa_bytu.html; do
+    # Remove real file if it exists (e.g. baked into image)
+    [ -f "/app/$f" ] && [ ! -L "/app/$f" ] && rm -f "/app/$f"
+    ln -sf "$DATA_DIR/$f" "/app/$f"
+done
+
+echo "[entrypoint] Starting crond..."
+crond -b -l 2
+
+echo "[entrypoint] Starting initial scrape in background..."
+bash /app/run_all.sh &
+
+echo "[entrypoint] Starting HTTP server on port 8080..."
+exec python3 -m http.server 8080 --directory "$DATA_DIR"