Claude Code: update health endpoint to return 'healthy' status for external monitoring

app.py

@@ -42,8 +42,8 @@ def get_app():
 
     @app.get("/health")
     async def health():
-        """Health check endpoint."""
-        return {"status": "ok", "uptime": round(time.time() - START_TIME, 2)}
+        """Health check endpoint for external monitoring."""
+        return {"status": "healthy", "uptime": round(time.time() - START_TIME, 2)}
 
     @app.on_event("startup")
     async def startup():