Add GCP credentials handling and temporary file storage

app.py

@@ -7,7 +7,24 @@ from google.cloud import aiplatform
 from transformers import pipeline
 from google.genai import types
 import gradio as gr
-import os, json
+import os, tempfile
+import json
+from google.cloud import aiplatform
+
+creds_json = os.getenv("GCP_CREDS_JSON")
+if not creds_json:
+    raise Exception("⚠️ Missing GCP_CREDS_JSON secret!")
+
+# Save to temp file
+with tempfile.NamedTemporaryFile(mode='w+', delete=False) as tmpfile:
+    tmpfile.write(creds_json)
+    creds_path = tmpfile.name
+
+os.environ["GOOGLE_APPLICATION_CREDENTIALS"] = creds_path
+
+# Initialize GCP API
+aiplatform.init(project="your-project-id", location="us-central1")
+
 
 
 apikey = "AIzaSyCeY0ji2gnMwvP8jGCU_Z5DG6m9Ybo3JeE"  # Replace or use os.getenv if secret