fix: disable Save button when no password available, fix changelog fetch-depth (#246, #229)

- Disable Save button (alongside Try connection) when no stored password
  and password field is empty, making both buttons consistent (#246)
- Update deploy-apk and build-linux CI jobs to use fetch-depth: 100 so
  generate-changelog produces a full 50-entry log, matching deploy-playstore (#229)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.forgejo/workflows/deploy.yml

@@ -136,7 +136,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
-          fetch-depth: 1
+          fetch-depth: 100
 
       - name: Check runner tools
         run: |
@@ -178,7 +178,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
-          fetch-depth: 1
+          fetch-depth: 100
 
       - name: Check runner tools
         run: |

lib/ui/screens/edit_account_screen.dart

@@ -360,7 +360,12 @@ class _EditAccountScreenState extends ConsumerState<EditAccountScreen> {
                   : null,
             ),
             const SizedBox(height: 8),
-            FilledButton(onPressed: _save, child: const Text('Save')),
+            FilledButton(
+              onPressed: _hasStoredPassword || _passwordCtrl.text.isNotEmpty
+                  ? _save
+                  : null,
+              child: const Text('Save'),
+            ),
           ],
         ),
       ),

test/widget/edit_account_screen_test.dart

@@ -163,6 +163,30 @@ void main() {
       expect(button.onPressed, isNotNull);
     });
 
+    testWidgets('save button is disabled when no password stored or entered', (
+      tester,
+    ) async {
+      tester.view.physicalSize = const Size(800, 1400);
+      tester.view.devicePixelRatio = 1.0;
+      addTearDown(tester.view.resetPhysicalSize);
+      addTearDown(tester.view.resetDevicePixelRatio);
+
+      await tester.pumpWidget(
+        buildApp(
+          initialLocation: '/accounts/acc-1/edit',
+          overrides: baseOverrides(
+            accounts: [kTestAccount],
+            hasStoredPassword: false,
+          ),
+        ),
+      );
+      await tester.pumpAndSettle();
+
+      final button = tester
+          .widget<FilledButton>(find.widgetWithText(FilledButton, 'Save'));
+      expect(button.onPressed, isNull);
+    });
+
     testWidgets('connection error shows error message', (tester) async {
       tester.view.physicalSize = const Size(800, 1400);
       tester.view.devicePixelRatio = 1.0;