feat: docker & build

dockerfiles/nginx.conf

@@ -0,0 +1,21 @@
+# Static SPA server baked into the webui PROD image (Dockerfile.prod).
+# Only serves the built assets + SPA fallback. API routing belongs to the
+# outer reverse proxy in the future prod compose.
+server {
+    listen 80;
+    server_name _;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Long-cache hashed build assets.
+    location /static/ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+        try_files $uri =404;
+    }
+
+    # SPA: every unknown path falls back to index.html (client-side router).
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}