fix volume mounts

docker-compose.override.yml

@@ -0,0 +1,15 @@
+## Local development overrides.
+## Compose loads this automatically alongside docker-compose.yml, so `docker compose up`
+## live-mounts the source files for hot-reload. Portainer (Git stack) only deploys
+## docker-compose.yml and ignores this file, using the code baked into the image instead.
+version: '3.8'
+
+services:
+  web:
+    volumes:
+      - ./web:/app/web
+      - ./download-overpass.py:/app/download-overpass.py
+      - ./diff-highways.py:/app/diff-highways.py
+      - ./shp-to-geojson.py:/app/shp-to-geojson.py
+      - ./convert-addresses.py:/app/convert-addresses.py
+      - ./compare-addresses.py:/app/compare-addresses.py