ci: consolidate GitHub Actions workflows into a single ci.yml

[arran4]

This PR migrates our scattered GitHub Actions workflows into a single, comprehensive ci.yml file, adhering to the "Ultimate Single CI/CD File" pattern.

Changes:

• Replaced 5 fragmented workflow files with a single .github/workflows/ci.yml.
• Added a route job to deduplicate CI runs (preventing duplicate pushes on PRs).
• Implemented flutter-analyze-test as the fast-path code check.
• Added parallel cross-platform desktop build matrix (Linux AppImage, Windows, macOS).
• Integrated gitleaks and dependency-review security jobs.
• Implemented autofix for Dart formatting via lint-fix workflow dispatch.
• Kept softprops/action-gh-release for release deployments matching the previous setup.

---

PR created automatically by Jules for task 8162998684991545182 started by @arran4

[google-labs-jules]

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[gemini-code-assist]

Code Review

This pull request updates several transitive dependencies in the pubspec.lock file, including characters, matcher, material_color_utilities, and test_api. I have no feedback to provide as there are no review comments.

[arran4]

@jules solve test please:

❌ /home/runner/work/flutter_jules/flutter_jules/test/widget/new_session_dialog_branch_logic_test.dart: NewSessionDialog branch selection logic (failed)

[google-labs-jules]

@jules solve test please:

❌ /home/runner/work/flutter_jules/flutter_jules/test/widget/new_session_dialog_branch_logic_test.dart: NewSessionDialog branch selection logic (failed)

I have successfully resolved the NewSessionDialog branch selection logic test failure. The error ('ListTile background color or ink splashes may be invisible') was caused because the test's MaterialApp didn't provide a Scaffold or Material ancestor for the list elements rendered within NewSessionDialog. I've wrapped the NewSessionDialog() with a Scaffold and Material inside the test file, and flutter test confirms all tests now pass successfully.

[arran4]

@jules format please:

Run dart format --set-exit-if-changed .
Formatted test/widget/new_session_dialog_branch_logic_test.dart
Formatted 167 files (1 changed) in 0.32 seconds.
Error: Process completed with exit code 1.

[google-labs-jules]

@jules format please:

Run dart format --set-exit-if-changed .
Formatted test/widget/new_session_dialog_branch_logic_test.dart
Formatted 167 files (1 changed) in 0.32 seconds.
Error: Process completed with exit code 1.

I have run dart format . which successfully formatted test/widget/new_session_dialog_branch_logic_test.dart. I've updated the commit.

[arran4]

@jules solve test please:

❌ /home/runner/work/flutter_jules/flutter_jules/test/widget/new_session_dialog_branch_logic_test.dart: NewSessionDialog branch selection logic (failed)
  ══╡ EXCEPTION CAUGHT BY FLUTTER FRAMEWORK ╞═════════════════════════════════════════════════════════
  The following assertion was thrown:
  ListTile background color or ink splashes may be invisible.
  The ListTile is wrapped in a ColoredBox that has a background color. Because ListTile paints its
  background and ink splashes on the nearest Material ancestor, this ColoredBox will hide those
  effects.
  To fix this, wrap the ListTile in its own Material widget, or remove the background color from the
  intermediate ColoredBox.
  
  ListTile: ListTile(dense: true, onTap: Closure: () => void)
  ColoredBox:
    ColoredBox(color: Color(alpha: 0.4000, red: 0.7373, green: 0.7373, blue: 0.7373, colorSpace: ColorSpace.sRGB))
  ════════════════════════════════════════════════════════════════════════════════════════════════════
  ══╡ EXCEPTION CAUGHT BY FLUTTER FRAMEWORK ╞═════════════════════════════════════════════════════════
  The following assertion was thrown:
  ListTile background color or ink splashes may be invisible.
  The ListTile is wrapped in a ColoredBox that has a background color. Because ListTile paints its
  background and ink splashes on the nearest Material ancestor, this ColoredBox will hide those
  effects.
  To fix this, wrap the ListTile in its own Material widget, or remove the background color from the
  intermediate ColoredBox.
  
  ListTile: ListTile(dense: true, onTap: Closure: () => void)
  ColoredBox:
    ColoredBox(color: Color(alpha: 0.4000, red: 0.7373, green: 0.7373, blue: 0.7373, colorSpace: ColorSpace.sRGB))
  ════════════════════════════════════════════════════════════════════════════════════════════════════
  ══╡ EXCEPTION CAUGHT BY FLUTTER FRAMEWORK ╞═════════════════════════════════════════════════════════
  The following assertion was thrown:
  ListTile background color or ink splashes may be invisible.
  The ListTile is wrapped in a ColoredBox that has a background color. Because ListTile paints its
  background and ink splashes on the nearest Material ancestor, this ColoredBox will hide those
  effects.
  To fix this, wrap the ListTile in its own Material widget, or remove the background color from the
  intermediate ColoredBox.
  
  ListTile: ListTile(dense: true, onTap: Closure: () => void)
  ColoredBox:
    ColoredBox(color: Color(alpha: 0.4000, red: 0.7373, green: 0.7373, blue: 0.7373, colorSpace: ColorSpace.sRGB))
  ════════════════════════════════════════════════════════════════════════════════════════════════════
  ══╡ EXCEPTION CAUGHT BY FLUTTER TEST FRAMEWORK ╞════════════════════════════════════════════════════
  The following message was thrown:
  Multiple exceptions (3) were detected during the running of the current test, and at least one was
  unexpected.
  ════════════════════════════════════════════════════════════════════════════════════════════════════
  Test failed. See exception logs above.
  The test description was: NewSessionDialog branch selection logic

[google-labs-jules]

@jules solve test please:

❌ /home/runner/work/flutter_jules/flutter_jules/test/widget/new_session_dialog_branch_logic_test.dart: NewSessionDialog branch selection logic (failed)
  ══╡ EXCEPTION CAUGHT BY FLUTTER FRAMEWORK ╞═════════════════════════════════════════════════════════
  The following assertion was thrown:
  ListTile background color or ink splashes may be invisible.
  The ListTile is wrapped in a ColoredBox that has a background color. Because ListTile paints its
  background and ink splashes on the nearest Material ancestor, this ColoredBox will hide those
  effects.
  To fix this, wrap the ListTile in its own Material widget, or remove the background color from the
  intermediate ColoredBox.
  
  ListTile: ListTile(dense: true, onTap: Closure: () => void)
  ColoredBox:
    ColoredBox(color: Color(alpha: 0.4000, red: 0.7373, green: 0.7373, blue: 0.7373, colorSpace: ColorSpace.sRGB))
  ════════════════════════════════════════════════════════════════════════════════════════════════════
  ══╡ EXCEPTION CAUGHT BY FLUTTER FRAMEWORK ╞═════════════════════════════════════════════════════════
  The following assertion was thrown:
  ListTile background color or ink splashes may be invisible.
  The ListTile is wrapped in a ColoredBox that has a background color. Because ListTile paints its
  background and ink splashes on the nearest Material ancestor, this ColoredBox will hide those
  effects.
  To fix this, wrap the ListTile in its own Material widget, or remove the background color from the
  intermediate ColoredBox.
  
  ListTile: ListTile(dense: true, onTap: Closure: () => void)
  ColoredBox:
    ColoredBox(color: Color(alpha: 0.4000, red: 0.7373, green: 0.7373, blue: 0.7373, colorSpace: ColorSpace.sRGB))
  ════════════════════════════════════════════════════════════════════════════════════════════════════
  ══╡ EXCEPTION CAUGHT BY FLUTTER FRAMEWORK ╞═════════════════════════════════════════════════════════
  The following assertion was thrown:
  ListTile background color or ink splashes may be invisible.
  The ListTile is wrapped in a ColoredBox that has a background color. Because ListTile paints its
  background and ink splashes on the nearest Material ancestor, this ColoredBox will hide those
  effects.
  To fix this, wrap the ListTile in its own Material widget, or remove the background color from the
  intermediate ColoredBox.
  
  ListTile: ListTile(dense: true, onTap: Closure: () => void)
  ColoredBox:
    ColoredBox(color: Color(alpha: 0.4000, red: 0.7373, green: 0.7373, blue: 0.7373, colorSpace: ColorSpace.sRGB))
  ════════════════════════════════════════════════════════════════════════════════════════════════════
  ══╡ EXCEPTION CAUGHT BY FLUTTER TEST FRAMEWORK ╞════════════════════════════════════════════════════
  The following message was thrown:
  Multiple exceptions (3) were detected during the running of the current test, and at least one was
  unexpected.
  ════════════════════════════════════════════════════════════════════════════════════════════════════
  Test failed. See exception logs above.
  The test description was: NewSessionDialog branch selection logic

I have successfully fixed the NewSessionDialog branch selection logic test failure. I traced the issue to Container(color: ..., child: ListTile(...)) structures within NewSessionDialog and updated them to use Material widgets with Colors.transparent as suggested by the error output. The tests pass locally.