feat(cg1+cg2): expose billing endpoints in Cloud Run agent

main.py

@@ -237,6 +237,31 @@ def telemetry_history(limit: int = 50):
     return {"history": get_store().history(limit=limit)}
 
 
+@app.get("/billing/summary")
+def get_billing_summary():
+    try:
+        agent = BillingAgent()
+        return agent.get_summary()
+    except Exception as e:
+        return {"error": str(e)}
+
+@app.get("/billing/forecast")
+def get_billing_forecast():
+    try:
+        agent = BillingAgent()
+        return agent.get_forecast()
+    except Exception as e:
+        return {"error": str(e)}
+
+@app.get("/billing/anomalies")
+def get_billing_anomalies():
+    try:
+        detector = AnomalyDetector()
+        return detector.detect_anomalies()
+    except Exception as e:
+        return {"error": str(e)}
+
+
 if __name__ == "__main__":
     import uvicorn
     port = int(os.environ.get("PORT", 8080))