[Fix] Configure bare linked worktrees (#67)

* fix(worktree): configure bare linked worktrees

Signed-off-by: samzong <samzong.lu@gmail.com>

* fix(worktree): ignore global worktree config

Signed-off-by: samzong <samzong.lu@gmail.com>

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Signed-off-by: samzong <samzong.lu@gmail.com>

v0.8.0

Features:
- Global --output json flag for structured output (#60)
- Machine-friendly exit codes for error classification (#59)
- gmc wt share discover subcommand for auto-detecting shareable files (#58)
- gmc wt prune --pr-aware flag with dirty worktree detection fix (#61)
- Worktree hook execution with real-time output (#51)

Chores:
- Unify skill directory structure (#56)
- Replace cobra-cli-dev with gmc skill and worktree scripts

feat(worktree): support batch operations for add and remove commands

Allow multiple names in `gmc wt add` and `gmc wt rm` so users can
create or remove several worktrees in a single invocation. Failed
items are reported individually without aborting the rest.

add skill for cobra cli

Signed-off-by: samzong <samzong.lu@gmail.com>

Merge pull request #43 from samzong/feat/formatter-2

✨ feat(formatter): add diff truncator and enhance formatting with Dif…

📝 docs(man): update autogenerated date in all manual pages to 14-Jan-…

…2026

Signed-off-by: samzong <samzong.lu@gmail.com>

Merge pull request #38 from samzong/chore/update-changelog-v0.6.1

chore: update CHANGELOG.md for v0.6.1

Merge pull request #37 from samzong/fix-root-path-error

fix: support worktree commands in bare workspace root

Release v0.6.0: Multiple new backward‑compatible features added (shar…

…ed resources, sync, prune, etc.) → minor version bump.