Fix: add missing /, /health, /tasks, /openenv/state endpoints

app.py

@@ -43,6 +43,60 @@ async def reset(req: ResetRequest):
     return _http_env.reset(seed=req.seed)
 
 
+@app.get("/")
+async def root():
+    return {
+        "message": "MLOps Pipeline Debugger API",
+        "version": "1.0.0",
+        "docs": "This is an OpenEnv-compatible RL environment",
+        "endpoints": {
+            "GET /": "This message",
+            "GET /health": "Health check",
+            "GET /tasks": "List available tasks",
+            "GET /openenv/state": "OpenEnv state",
+            "POST /reset": "Start a new episode",
+            "POST /step": "Take an action",
+            "GET /state": "Get current state",
+        },
+    }
+
+
+@app.get("/health")
+async def health():
+    return {"status": "ok", "environment": "mlops_debug_env", "version": "1.0.0"}
+
+
+@app.get("/openenv/state", response_model=OpenEnvState)
+def openenv_state():
+    return OPENENV_STATE
+
+
+@app.get("/tasks")
+async def list_tasks():
+    return {
+        "tasks": [
+            {
+                "task_id": "easy",
+                "name": "Config Error Diagnosis",
+                "difficulty": "easy",
+                "max_steps": 20,
+            },
+            {
+                "task_id": "medium",
+                "name": "Data Leakage Detection",
+                "difficulty": "medium",
+                "max_steps": 30,
+            },
+            {
+                "task_id": "hard",
+                "name": "Silent Evaluation Bug",
+                "difficulty": "hard",
+                "max_steps": 40,
+            },
+        ]
+    }
+
+
 @app.post("/step", response_model=StepResponse)
 async def step(action: Optional[MLOpsAction] = None, data: Optional[dict] = None):
     if _http_env is None: