feat: add healthcheck

src/server.py

@@ -10,6 +10,8 @@ import qdrant_client as qdrant_pkg
 from dateutil import parser as date_parser
 from email.utils import parseaddr
 from dotenv import load_dotenv
+from starlette.requests import Request
+from starlette.responses import JSONResponse
 from fastmcp import FastMCP
 from qdrant_client import QdrantClient
 from qdrant_client.http import models
@@ -44,6 +46,11 @@ logger.info(f"Starting MCP server with collection: {COLLECTION_NAME}")
 # Initialize FastMCP server
 mcp = FastMCP("mcp-maildir")
 
+@mcp.custom_route("/health", methods=["GET"])
+async def health_check(request: Request):
+    """Simple health check endpoint for Kubernetes liveness/readiness probes."""
+    return JSONResponse({"status": "ok"})
+
 # Lazy singletons
 _qdrant_client: Optional[QdrantClient] = None
 _embedding_model: Optional[TextEmbedding] = None