Small improvements to version formatter and run events handling.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
Update CLI commands to use channel-aware version fetching:
- doctor check now reports channel in error messages
- get-local-version uses channel from pinned version
Depends on channel detection from previous commit.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
- Add new CLI command 'get-local-version' to display current version and check for updates
- Reuses existing version checking infrastructure from auto-update-checker
- Supports both human-readable and JSON output formats
- Handles edge cases: local dev mode, pinned versions, network errors
- Provides colored terminal output with picocolors
- Closes#260
Co-authored-by: sisyphus-dev-ai <sisyphus-dev-ai@users.noreply.github.com>
