Prevent stale frontend assets in Docker

CHANGELOG.md

@@ -12,6 +12,7 @@
 - Added `POST /api/v1/analysis/change-detection` for synchronous comparison of two vector datasets in the same project.
 - Added a `ChangeDetectionService` that prefers persisted `vector_features`, falls back to stored GeoJSON with an explicit warning, and returns added/removed/unchanged GeoJSON features.
 - Added a frontend Change Detection panel and MapLibre change overlay styling for added, removed and unchanged geometries.
+- Added nginx no-cache headers for frontend HTML/assets so LAN Docker rebuilds are visible without stale browser modules.
 - Added backend tests for persisted vector feature comparison and canonical API envelope behavior.
 - No migrations, live provider fetching, AI inference, new dependencies, LiDAR, Copilot, Training Studio or separate Reports module were introduced.
 

backend/tests/test_docker_runtime_config.py

@@ -78,6 +78,8 @@ def test_frontend_uses_same_origin_api_proxy_by_default() -> None:
     assert "location /api/" in nginx_config
     assert "proxy_pass http://backend:8000/api/" in nginx_config
     assert "location = /health" in nginx_config
+    assert 'add_header Cache-Control "no-cache"' in nginx_config
+    assert "location /assets/" in nginx_config
     assert "try_files $uri $uri/ /index.html" in nginx_config
 
 

docs/CODEX_EXECUTION_LOG.md

@@ -4,6 +4,7 @@ Changed:
 - Added `POST /api/v1/analysis/change-detection` for comparing two vector datasets in the same project through the existing synchronous job envelope.
 - Added `ChangeDetectionService` with persisted `vector_features` as the primary source of comparable geometries and explicit stored-GeoJSON fallback warnings for older datasets.
 - Added frontend Change Detection controls, summary counts and MapLibre overlay styling for `added`, `removed` and `unchanged` feature properties.
+- Added nginx no-cache headers for frontend HTML/assets after browser verification exposed stale cached modules on the LAN deployment.
 - Added backend tests for persisted-vector comparison and canonical API envelope behavior.
 
 Limitations:

frontend/nginx.conf

@@ -5,6 +5,16 @@ server {
     root /usr/share/nginx/html;
     index index.html;
 
+    location = /index.html {
+        add_header Cache-Control "no-cache";
+        try_files /index.html =404;
+    }
+
+    location /assets/ {
+        add_header Cache-Control "no-cache";
+        try_files $uri =404;
+    }
+
     location /api/ {
         proxy_pass http://backend:8000/api/;
         proxy_http_version 1.1;