Fix swagger docs page problem in dev mode

- Add /static to VITE_API_ENDPOINTS
- Update proxy rewrite rules
- Include static file serving
- Sync sample env file

lightrag_webui/.env.development

@@ -1,4 +1,4 @@
 # Development environment configuration
 VITE_BACKEND_URL=http://localhost:9621
 VITE_API_PROXY=true
-VITE_API_ENDPOINTS=/api,/documents,/graphs,/graph,/health,/query,/docs,/redoc,/openapi.json,/login,/auth-status
+VITE_API_ENDPOINTS=/api,/documents,/graphs,/graph,/health,/query,/docs,/redoc,/openapi.json,/login,/auth-status,/static

lightrag_webui/env.development.smaple

@@ -1,4 +1,4 @@
 # Development environment configuration
 VITE_BACKEND_URL=http://localhost:9621
 VITE_API_PROXY=true
-VITE_API_ENDPOINTS=/api,/documents,/graphs,/graph,/health,/query,/docs,/redoc,/openapi.json,/login,/auth-status
+VITE_API_ENDPOINTS=/api,/documents,/graphs,/graph,/health,/query,/docs,/redoc,/openapi.json,/login,/auth-status,/static

lightrag_webui/vite.config.ts

@@ -40,7 +40,7 @@ export default defineConfig({
             changeOrigin: true,
             rewrite: endpoint === '/api' ?
               (path) => path.replace(/^\/api/, '') :
-              endpoint === '/docs' || endpoint === '/redoc' || endpoint === '/openapi.json' ?
+              endpoint === '/docs' || endpoint === '/redoc' || endpoint === '/openapi.json' || endpoint === '/static' ?
                 (path) => path : undefined
           }
         ])