refactor: Simplify app.py for debugging

This commit simplifies the app.py file by removing the streaming logic and returning a simple response from the root endpoint. This is done to isolate the problem and confirm that the FastAPI application is working correctly.

app.py

@@ -6,51 +6,6 @@ import os
 
 app = FastAPI()
 
-async def run_mcp_server():
-    """Runs the notion-mcp-server and yields its output."""
-    env = os.environ.copy()
-    auth_token = env.get("BEARER")
-    command = ["/notion-mcp-server/bin/cli.mjs"]
-    if auth_token:
-        command.extend(["--auth-token", auth_token])
-
-    process = await asyncio.create_subprocess_exec(
-        *command,
-        stdout=subprocess.PIPE,
-        stderr=subprocess.PIPE,
-        env=env,
-    )
-
-    if process.stdout:
-        while not process.stdout.at_eof():
-            line = await process.stdout.readline()
-            if not line:
-                break
-            yield line
-
-    if process.stderr:
-        while not process.stderr.at_eof():
-            line = await process.stderr.readline()
-            if not line:
-                break
-            yield line
-
-@app.api_route("/health", methods=["GET"])
-async def proxy_health(request: Request):
-    async with httpx.AsyncClient() as client:
-        url = "http://localhost:7860/health"
-        headers = {key: value for key, value in request.headers.items() if key.lower() not in ('host',)}
-        
-        response = await client.request(
-            method=request.method,
-            url=url,
-            headers=headers,
-            params=request.query_params,
-            content=await request.body(),
-        )
-        return Response(content=response.content, status_code=response.status_code, headers=dict(response.headers))
-
 @app.get("/")
-async def stream():
-    """Streams the output of the notion-mcp-server."""
-    return StreamingResponse(run_mcp_server())
+async def root():
+    return {"message": "Notion MCP Keyed is running"}