Fix Firefox ctrl-click drag rotation

[officialasishkumar]

Fixes #6565

This updates mouse rotate gesture detection so Firefox/macOS Ctrl-click events, which arrive as right-button events with ctrlKey, can start drag rotation when camera roll is not enabled. When rollEnabled is enabled, Ctrl-right-click remains reserved for roll gestures.

Added coverage at both levels:

• mouse handler classification for Firefox-shaped Ctrl-click events
• map-level drag rotate regression for the same event shape
• guard coverage that Ctrl-right-click still rolls, not rotates, when roll is enabled

Validation run locally:

• npm run test-unit -- src/ui/handler/mouse_handler_interface.test.ts src/ui/handler/drag_rotate.test.ts
• npm run lint -- src/ui/handler/mouse.ts src/ui/handler/mouse_handler_interface.test.ts src/ui/handler/drag_rotate.test.ts
• npm run typecheck
• npx cspell CHANGELOG.md

Launch Checklist

• Confirm your changes do not include backports from Mapbox projects (unless with compliant license) - if you are not sure about this, please ask!
• Briefly describe the changes in this PR.
• Link to related issues.
• Include before/after visuals or gifs if this PR includes visual changes. Not applicable; this is interaction behavior covered by tests.
• Write tests for all new functionality.
• Document any changes to public APIs. Not applicable; no public API changes.
• Post benchmark scores. Not applicable; no rendering or performance-sensitive path changes.
• Add an entry to CHANGELOG.md under the ## main section.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.50%. Comparing base (7f61f6f) to head (565e247).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7456      +/-   ##
==========================================
- Coverage   92.77%   92.50%   -0.28%     
==========================================
  Files         289      289              
  Lines       24017    24017              
  Branches     5100     5100              
==========================================
- Hits        22282    22217      -65     
- Misses       1735     1800      +65     

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[HarelM]

Did you read the full issue thread and the closed PR?
Is this AI generated? If so please indicate which model did you use.

[officialasishkumar]

Yes, I read the full issue thread and the closed PR. AI was used only for research and code auto completion

[HarelM]

I don't see how the fix is what's needed to solve this issue, can you please explain the solution (without the use of AI)?