fix: satisfy openenv multi-mode validation

Add root pyproject.toml and uv.lock with server script + openenv-core dependency, and expose server.app:main entrypoint for validator checks.

Also harden frontend health status handling to avoid false offline state when health responses vary by status text/content-type.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

frontend/src/api/client.ts

@@ -273,11 +273,21 @@ export const apiClient = {
 
   // Health Check
   async healthCheck(): Promise<{ status: string; version: string }> {
-    const response = await fetch(`${API_BASE}/health`);
+    const response = await fetch(`${API_BASE}/health`, { cache: 'no-store' });
     if (!response.ok) {
       throw new APIError('Health check failed', response.status);
     }
-    return response.json();
+    const contentType = response.headers.get('content-type') || '';
+    if (contentType.includes('application/json')) {
+      return response.json();
+    }
+
+    const text = await response.text();
+    try {
+      return JSON.parse(text) as { status: string; version: string };
+    } catch {
+      return { status: 'healthy', version: 'unknown' };
+    }
   },
 
   // Scraping with streaming

frontend/src/components/Dashboard.tsx

@@ -490,7 +490,7 @@ export const Dashboard: React.FC = () => {
   const [stats, setStats] = useState({ episodes: 0, steps: 0, totalReward: 0, avgReward: 0 });
 
   // API Queries
-  const { data: health } = useQuery({
+  const { data: health, isError: healthError } = useQuery({
     queryKey: ['health'],
     queryFn: () => apiClient.healthCheck(),
     refetchInterval: 5000,
@@ -863,7 +863,15 @@ export const Dashboard: React.FC = () => {
   };
 
   // Check system status
-  const isSystemOnline = health?.status === 'healthy';
+  const normalizedHealthStatus = typeof health?.status === 'string'
+    ? health.status.toLowerCase()
+    : null;
+  const isSystemOnline = !healthError && (
+    normalizedHealthStatus === null
+    || normalizedHealthStatus === 'healthy'
+    || normalizedHealthStatus === 'ok'
+    || normalizedHealthStatus === 'ready'
+  );
 
   // Show info popup
   const showInfo = (title: string, description: string, details?: Record<string, string>) => {

frontend/src/components/Settings.tsx

@@ -101,6 +101,14 @@ export const Settings: React.FC<SettingsProps> = ({ className }) => {
     refetchInterval: 10000,
   });
 
+  const normalizedHealthStatus = typeof health?.status === 'string'
+    ? health.status.toLowerCase()
+    : '';
+  const isBackendOnline =
+    normalizedHealthStatus === 'healthy'
+    || normalizedHealthStatus === 'ok'
+    || normalizedHealthStatus === 'ready';
+
   // Mutation to update API key
   const updateApiKeyMutation = useMutation({
     mutationFn: async ({ provider, api_key }: { provider: string; api_key: string }) => {
@@ -223,7 +231,7 @@ export const Settings: React.FC<SettingsProps> = ({ className }) => {
                     <span className="text-xs text-gray-400">Backend</span>
                   </div>
                   <p className="text-sm font-medium text-white mt-1">
-                    {health?.status === 'ok' ? 'Connected' : 'Disconnected'}
+                    {isBackendOnline ? 'Connected' : 'Disconnected'}
                   </p>
                 </div>
                 <div className="p-3 bg-gray-900/50 rounded-lg">
@@ -588,8 +596,8 @@ export const Settings: React.FC<SettingsProps> = ({ className }) => {
         {/* Status Footer */}
         <div className="p-4 border-t border-gray-700/50">
           <div className="flex items-center gap-2">
-            <div className={classNames('w-2 h-2 rounded-full', health?.status === 'ok' ? 'bg-emerald-400' : 'bg-red-400')} />
-            <span className="text-xs text-gray-400">{health?.status === 'ok' ? 'System Online' : 'System Offline'}</span>
+            <div className={classNames('w-2 h-2 rounded-full', isBackendOnline ? 'bg-emerald-400' : 'bg-red-400')} />
+            <span className="text-xs text-gray-400">{isBackendOnline ? 'System Online' : 'System Offline'}</span>
           </div>
         </div>
       </div>

pyproject.toml

@@ -0,0 +1,19 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "scraperl-openenv"
+version = "0.1.0"
+description = "ScrapeRL OpenEnv-compatible environment package"
+readme = "README.md"
+requires-python = ">=3.11"
+dependencies = [
+    "openenv-core>=0.2.0",
+    "fastapi>=0.109.0",
+    "uvicorn[standard]>=0.27.0",
+]
+
+[project.scripts]
+server = "server.app:main"
+

server/app.py

@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+import os
 import sys
 from pathlib import Path
 
@@ -11,3 +12,16 @@ if str(BACKEND_DIR) not in sys.path:
 
 from app.main import app  # noqa: E402,F401
 
+
+def main() -> None:
+    """Run the FastAPI app for OpenEnv multi-mode validation."""
+    import uvicorn
+
+    host = os.getenv("HOST", "0.0.0.0")
+    port = int(os.getenv("PORT", "7860"))
+    uvicorn.run("server.app:app", host=host, port=port)
+
+
+if __name__ == "__main__":
+    main()
+