Add uninstall instructions, FAQ, and README polish

Harden all hooks: security, compatibility, quality, and performance

Reorganize README into categorized pack library with suggested combos

Add 5 new hook packs: dangerous-cmd, auto-lint, auto-test, auto-commit, session-log

Improve README intro with descriptive hook pack summaries

Fix bugs found in audit: parsing, docs, colors, separators, focus detection

Add configurable options to notify hook

Fix notify hook: switch from Notification to Stop event

Initial release: pre-built hook packs for Claude Code