fix: unlock DeepWiki cross-phase research and strengthen research infrastructure

feat: add deep-interview skill and enhance Phase 1 with PQCP protocol

feat: add code-reviewer skill with 10-dimension × 4-role fused audit

feat: add lite versions of workflow-architect and project-surgeon

refactor: promote sub-skills to top-level directories for Claude Code discovery

fix: remove name field from sub-skill frontmatter to fix namespace resolution

feat: add project-surgeon skill for existing project takeover

feat: split skill into Claude Code and Codex CLI versions

Move skill files to skills/ directory for ccw/npx compatibility

Update README.md

Initial release: Workflow Architect skill for Claude Code