progress.

firebase_init.py

@@ -0,0 +1,19 @@
+import os
+from firebase_admin import credentials, initialize_app, firestore
+
+# Load credentials
+_creds = None
+json_inline = os.environ.get("FIREBASE_SERVICE_ACCOUNT_JSON")
+file_path = os.environ.get("GOOGLE_APPLICATION_CREDENTIALS")
+if json_inline:
+    _creds = credentials.Certificate(json.loads(json_inline))
+elif file_path and os.path.exists(file_path):
+    _creds = credentials.Certificate(file_path)
+else:
+    raise RuntimeError("Firebase credentials not configured. Set GOOGLE_APPLICATION_CREDENTIALS or FIREBASE_SERVICE_ACCOUNT_JSON.")
+
+# Initialize Firebase Admin SDK
+firebase_admin_app = initialize_app(_creds)
+
+# Create Firestore client
+db = firestore.client()