* feat: change default mode to architect for new installations
- Reordered modes array to put architect mode first
- Updated test to reflect architect as the default mode
- Maintains backward compatibility for existing users
* test: update snapshots and fix tests for architect default mode
- Update all snapshot tests to reflect architect as the default mode
- Fix mode destructuring in validateToolUse tests
- All tests now pass with the new default mode configuration
* docs: add comment explaining mode ordering for default selection
Addresses PR review feedback to clarify that the first mode in the array
serves as the default for new installations
* fix: Update integration test to use lowercase mode name
The test was using 'Ask' (capitalized) but modes are now lowercase 'ask'.
This was causing the test to timeout as the mode validation failed.
