fix: inherit parent environment variables in exec command (#31)

Commands executed via `gwq exec` now inherit the parent shell's environment
variables (PATH, NODE_PATH, etc.), allowing tools like pnpm, npm, node to be
found and executed properly in worktree directories.

Fixes issue where commands would fail with "executable file not found in $PATH"
even when the executables were available in the parent shell environment.

refactor: Add comprehensive test coverage and consolidate utility fun…

…ctions (#27)

This commit completes the Phase 4 refactoring tasks focusing on test coverage
improvements and utility function consolidation.

Test Coverage Improvements:
- Added task_manager_test.go with full TaskManager test coverage
- Added task_simplified_test.go with complete SimplifiedTask test coverage
- Added discovery_test.go with basic worktree discovery tests
- Added finder_test.go with comprehensive fuzzy finder tests
- Test coverage improved from 0% to approximately 80-90%

Utility Function Consolidation:
- Moved escapeForShell to pkg/utils/utils.go as EscapeForShell
- Updated all references in claude packages
- Removed duplicate implementation
- Added comprehensive tests for the utility function

All changes pass make fmt, make lint, make test, and make build.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Test User <[email protected]>
Co-authored-by: Claude <[email protected]>

docs: Reorganize release notes and add v0.0.4-rc.2 (#20)

- Move release notes to individual files in docs/release-notes/
- Add comprehensive release notes for v0.0.4-rc.2
- Maintain consistent format across all release versions
- Improve maintainability and discoverability of release history

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <[email protected]>

docs: Update release notes (#13)

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <[email protected]>

docs: Add v0.0.3 release notes (#9)

Added comprehensive release notes for v0.0.3 featuring the new worktree status dashboard functionality with real-time monitoring, multiple output formats, and AI agent workflow enhancements.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <[email protected]>

Fix URL normalization for ssh:// prefixed Git URLs (#6)

* Fix URL normalization for ssh:// prefixed Git URLs

Add support for ssh://git@ URL format in normalizeURL function to prevent
malformed worktree directory paths.

* add tests

add release notes