Add detection for when the installed gt binary is out of date with the
source repository. This helps catch issues where commands fail mysteriously
because the installed binary doesn't have recent fixes.
Changes:
- Add internal/version package with stale binary detection logic
- Add startup warning in PersistentPreRunE when binary is stale
- Add gt doctor check for stale-binary
- Use prefix matching for commit comparison (handles short vs full hash)
The warning is non-blocking and only shows once per shell session via
the GT_STALE_WARNED environment variable.
Resolves: gt-ud912
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add error suppression for enc.Encode() calls in info.go (errcheck lint)
- Add missing encoding/json import in install_integration_test.go
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Update version.go to 0.2.0
- Add comprehensive CHANGELOG.md entry for v0.2.0 (178 commits)
- Add gt info command with --whats-new flag for agent-relevant changes
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
