Root add

app.py

@@ -187,3 +187,7 @@ def ema_summary(input_data: DateRange):
 
     except Exception as e:
         return {"status": "error", "message": str(e)}
+
+@app.get("/")
+def root():
+    return {"message": "Model B API (EMA + Trend Summary) aktif 🚀"}