feat(dir): batch install

[csirmazbendeguz]

If install receives filters, use those filters to fetch the records and install them

If a tool doesn't support skill directories, skip installing

Note, this PR changes the Copilot and Cursor paths so skills are stored in directories instead of markdown files

[codecov]

Codecov Report

❌ Patch coverage is 57.52381% with 223 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
cli/cmd/install/batch.go	21.9%	87 Missing and 2 partials ⚠️
api/exportfmt/skill_bundle_extract.go	49.1%	33 Missing and 26 partials ⚠️
cli/cmd/install/uninstall.go	4.0%	24 Missing ⚠️
cli/internal/agentcfg/skill_engine.go	40.0%	7 Missing and 8 partials ⚠️
api/exportfmt/tar_iterator.go	69.2%	7 Missing and 5 partials ⚠️
cli/cmd/install/derive.go	70.6%	5 Missing and 5 partials ⚠️
cli/internal/agentcfg/format_grouped.go	79.3%	3 Missing and 3 partials ⚠️
cli/cmd/install/install.go	69.2%	2 Missing and 2 partials ⚠️
cli/cmd/install/apply.go	88.2%	1 Missing and 1 partial ⚠️
cli/internal/agentcfg/summary.go	86.7%	1 Missing and 1 partial ⚠️

📢 Thoughts on this report? Let us know!

[akijakya]

Overall a solid PR — well-decomposed, the TarIterator refactor reads cleanly, and coverage is good (all changed packages' tests pass locally). Incorporating skill-bundle support into install is the right call. A few things worth addressing before merge — no blockers. Comments inline.

[akijakya]

LGTM! 🚀