gitpane 0.16.0

Multi-repo Git workspace dashboard TUI
Documentation
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Closes #<issue number>

## Type

- [ ] Bug fix
- [ ] Feature
- [ ] Documentation
- [ ] Refactor or maintenance
- [ ] Dependency update

## Summary

One or two sentences describing what changes for users.

## Problem

What is wrong and why it matters. Include repro steps or observed output for bugs.

## Fix

What the change does and why this approach.

## Testing

How the change was verified, including new or updated tests and relevant CI
checks.

- [ ] `just ci` passes
- [ ] Tests were added or updated where behavior changed
- [ ] Documentation was updated where needed

## Review assistance

If review identifies changes, how would you like us to proceed?

- [ ] Please use our AI agents to review this PR and prepare any requested
      follow-up changes. I will review the result.
- [ ] I will make any requested changes myself. Please leave review comments
      only.
- [ ] No preference.

If you selected AI-agent assistance, describe any constraints, acceptance
criteria, or files that should be included in the follow-up work:

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