refactor app configuration and improve Google OAuth handling; update .gitignore and enhance test documentation

src/AUTH/GoogleAUTH.js

@@ -4,16 +4,20 @@ import { AuthServiceBase } from './AuthServiceBase';
 
 WebBrowser.maybeCompleteAuthSession();
 
-// Replace with your real Google Cloud OAuth Client ID (see ignorefiles/GOOGLE_OAUTH_SETUP.md)
 const GOOGLE_CLIENT_ID = '313090284964-rgq1u7np6ogucu9o97s134n5nc6nj7kf.apps.googleusercontent.com';
 
+// makeRedirectUri uses the scheme from app.json ("media-aggregation") to build
+// the deep link URI that Android will route back into the app after OAuth.
+// The resulting URI is: media-aggregation://  (registered in Google Cloud Console)
+// For Expo Go dev testing the loopback http://localhost is used instead.
+const REDIRECT_URI = AuthSession.makeRedirectUri({ scheme: 'media-aggregation' });
+
 const GOOGLE_DISCOVERY = {
   authorizationEndpoint: 'https://accounts.google.com/o/oauth2/v2/auth',
   tokenEndpoint: 'https://oauth2.googleapis.com/token',
   revocationEndpoint: 'https://oauth2.googleapis.com/revoke',
 };
 
-// Google Photos Library API scopes — read, write, and user profile
 const SCOPES = [
   'https://www.googleapis.com/auth/photoslibrary',
   'https://www.googleapis.com/auth/photoslibrary.appendonly',
@@ -48,15 +52,12 @@ class GoogleAUTH extends AuthServiceBase {
         };
       }
 
-      const redirectUri = AuthSession.makeRedirectUri({
-        scheme: 'media-aggregation',
-        preferLocalhost: true,
-      });
+      console.log('OAuth redirect URI:', REDIRECT_URI);
 
       const authRequest = new AuthSession.AuthRequest({
         clientId: GOOGLE_CLIENT_ID,
         scopes: SCOPES,
-        redirectUri,
+        redirectUri: REDIRECT_URI,
         responseType: AuthSession.ResponseType.Code,
         usePKCE: true,
         extraParams: { access_type: 'offline', prompt: 'consent' },
@@ -72,7 +73,7 @@ class GoogleAUTH extends AuthServiceBase {
         {
           clientId: GOOGLE_CLIENT_ID,
           code: result.params.code,
-          redirectUri,
+          redirectUri: REDIRECT_URI,
           extraParams: { code_verifier: authRequest.codeVerifier },
         },
         GOOGLE_DISCOVERY
@@ -80,7 +81,6 @@ class GoogleAUTH extends AuthServiceBase {
 
       this.accessToken = tokenResponse.accessToken;
       this.refreshToken = tokenResponse.refreshToken;
-      this.idToken = tokenResponse.idToken;
       this.expiresAt = tokenResponse.issuedAt
         ? (tokenResponse.issuedAt + (tokenResponse.expiresIn || 3600)) * 1000
         : Date.now() + 3600000;
@@ -91,7 +91,7 @@ class GoogleAUTH extends AuthServiceBase {
       return {
         success: true,
         accessToken: this.accessToken,
-        refreshToken: this.refreshToken,
+        refreshToken: null,
         email: this.email,
       };
     } catch (error) {

src/screens/HomeScreen.js

@@ -199,13 +199,13 @@ const styles = StyleSheet.create({
   centerContainer: { flex: 1, justifyContent: 'center', alignItems: 'center', paddingHorizontal: 24 },
   loadingText: { marginTop: 12, fontSize: 14 },
   // Filter chips
-  filterRow: { paddingHorizontal: 12, paddingVertical: 8, gap: 8 },
+  filterRow: { paddingHorizontal: 12, paddingVertical: 6, gap: 6 },
   chip: {
-    flexDirection: 'row', alignItems: 'center', paddingHorizontal: 14, paddingVertical: 7,
-    borderRadius: 20, gap: 6,
+    flexDirection: 'row', alignItems: 'center', paddingHorizontal: 10, paddingVertical: 4,
+    borderRadius: 12, gap: 4,
   },
-  chipIcon: { fontSize: 13 },
-  chipText: { fontSize: 13, fontWeight: '500', color: '#3c4043' },
+  chipIcon: { fontSize: 11 },
+  chipText: { fontSize: 12, fontWeight: '500', color: '#3c4043' },
   // Empty
   emptyTitle: { fontSize: 18, fontWeight: '600', marginBottom: 6 },
   emptyText: { fontSize: 13, textAlign: 'center', marginBottom: 20 },