feat: add 13 gstack skills from Garry Tan's YC toolkit

fix: update remaining AllCare-ai references in install.sh comments

fix: update repo reference from AllCare-ai to ramybarsoum

docs: add allcare-feature-spec-interview to skills table

Add allcare-feature-spec-interview skill

refactor: organize skills into 7 functional group directories

feat: add 3 Paperclip-derived agent skills (para-memory, heartbeat, token optimization)

docs: reorganize README into 7 functional groups

fix: remove embedded git repo from get-shit-done skill

feat: add 97 skills organized by category, rebrand for AllCare team

feat(feature-spec-interview): add Batch mode and Decomposition Audit phase

feat: one-command install with auto-hook setup and uninstall

feat: add Quick mode, shared project context, hooks, version check, updated README

feat(feature-spec-interview): add 4-mode system, MECE gap questions, PM/ENG tags

feat: initial release with feature-spec-interview skill