Add dedicated /health endpoint for monitoring services

app.py

@@ -63,9 +63,19 @@ class BirthRequest(BaseModel):
     timezone: Optional[str] = "UTC"
 
 @app.get("/")
-def health():
+def root():
     return {"status": "online", "service": "Sisi Astrology API"}
 
+@app.get("/health")
+def health_check():
+    """Health check endpoint for monitoring services"""
+    return {
+        "status": "healthy",
+        "service": "Sisi Astrology API",
+        "version": "1.0.0",
+        "uptime": "ok"
+    }
+
 def planet_to_dict(planet_model: Any) -> Dict:
     """Convert Kerykeion planet model to dict"""
     return {