feat: implement Google OAuth support for Android and iOS

- Added support for Google OAuth with separate client IDs for Android and iOS.
- Updated `verify_google_id_token` to validate `aud` against both client IDs and check `email_verified`.
- Modified `google_oauth_handler` to accept and process the new client IDs.
- Enhanced security by enforcing explicit JWT algorithm validation.
- Updated mobile app to handle Google OAuth flow using `expo-auth-session`.
- Fixed API request to send `id_token` in snake_case as expected by the backend.
- Added necessary environment variables for Google client IDs in mobile app.
- Implemented intent filter for Google OAuth redirect in AndroidManifest.xml.

.claude/settings.local.json

@@ -17,7 +17,12 @@
       "Bash(find /var/home/felipecn/DEV/MeowSpool/backend/bruno-routes -name \"*.yml\" ! -name \"route.yml\" ! -name \"Dashboard.yml\" -exec sed -i 's|  url: \\\\\\({{.*}}\\\\\\)|  url: \"\"\\\\1\"\"|g' {} +)",
       "Bash(find /var/home/felipecn/DEV/MeowSpool/backend/bruno-routes -name \"*.yml\" ! -name \"route.yml\" -exec sed -i 's|  url: \"\"\\\\?\\\\\\(.*\\\\\\)\"\"\\\\?$|  url: \"\"\\\\1\"\"|g; s|  url: \"\"\\\\\\(.*\\\\\\)\"\"\"\"\\\\?$|  url: \"\"\\\\1\"\"|g' {} +)",
       "Bash(cargo check:*)",
-      "Bash(ls /var/home/felipecn/DEV/MeowSpool/mobile/app/\\\\\\(auth\\\\\\))"
+      "Bash(ls /var/home/felipecn/DEV/MeowSpool/mobile/app/\\\\\\(auth\\\\\\))",
+      "Bash(cd:*)",
+      "Bash(source:*)",
+      "Bash(npm install:*)",
+      "Bash(npx tsc:*)",
+      "Bash(npx expo:*)"
     ]
   }
 }