Cache Update

web/.htaccess

@@ -31,6 +31,14 @@ AddType text/css css
     Header set Cache-Control "public, max-age=3600"
   </FilesMatch>
 
+  # Never cache service worker or manifest (avoid stale app shell)
+  <FilesMatch "^flutter_service_worker\.js$">
+    Header set Cache-Control "no-cache, no-store, must-revalidate, max-age=0"
+  </FilesMatch>
+  <FilesMatch "^manifest\.json$">
+    Header set Cache-Control "no-cache, max-age=0"
+  </FilesMatch>
+
   # Never cache the HTML entry point
   <FilesMatch "^index\.html$">
     Header set Cache-Control "no-cache, no-store, must-revalidate, max-age=0"
@@ -50,4 +58,3 @@ AddType text/css css
   AddOutputFilterByType DEFLATE \
     text/html text/plain text/css application/javascript application/json application/wasm image/svg+xml
 </IfModule>
-