Add OpenAI interface metadata to 14 skills (commit-staged, implement-isolation, implement-isolation-tmux, project-context-pack, setup-skills, agent-handoff, knowledge-gardener, tmux-launch-agent, conversation-summary, crit, pkm-curation, research-vault, youtube-video-capture, lsp-code-analysis). Add new lsp-code-analysis skill for semantic code navigation and refactoring via the Language Server Protocol.