Update app.py

app.py

@@ -27,18 +27,26 @@ app = FastAPI(
 class TextRequest(BaseModel):
     text: str
 
+@app.get("/")
+def root():
+    return {"message": "API is running"}
+
 @app.get("/health")
 def health():
     return {"status": "ok"}
 
 @app.post("/embed")
 def embed(req: TextRequest):
+    if model is None:
+        return {"error": "Model not loaded"}
+
     with torch.no_grad():
         embedding = model.encode(
             req.text,
             convert_to_numpy=True,
             normalize_embeddings=True
         )
+
     return {
         "embedding": embedding.tolist(),
         "dim": len(embedding)