Fix indentation issues and add comprehensive .gitignore

client.py

@@ -47,8 +47,8 @@ def setup_environment():
         print("💡 Set environment variable: FOURSQUARE_API_KEY=your_foursquare_key")
     else:
         # Set in environment if not already set
-    if 'FOURSQUARE_API_KEY' not in os.environ:
-        os.environ['FOURSQUARE_API_KEY'] = FOURSQUARE_API_KEY
+        if 'FOURSQUARE_API_KEY' not in os.environ:
+            os.environ['FOURSQUARE_API_KEY'] = FOURSQUARE_API_KEY
     
     # Validate Anthropic API key - NO HARDCODED FALLBACK
     if not ANTHROPIC_API_KEY: