v0.4.12

### Added
- Curated cross-references for 7 hub skills: 22 back-references added for agent routing quality (closes #68)
  - `devops-engineer`: terraform-engineer, kubernetes-specialist, sre-engineer, monitoring-expert, security-reviewer
  - `fullstack-guardian`: secure-code-guardian, architecture-designer, react-expert, typescript-pro
  - `test-master`: debugging-wizard, code-reviewer, feature-forge
  - `database-optimizer`: postgres-pro, graphql-architect
  - `security-reviewer`: api-designer, mcp-developer
  - `architecture-designer`: microservices-architect, code-reviewer
  - `kubernetes-specialist`: terraform-engineer, security-reviewer, chaos-engineer

### Changed
- Bumped 7 hub skills from v1.1.0 → v1.1.1 (cross-reference updates)
- Added Prettier markdown formatting to pre-commit hooks, CI, and Makefile — covers `skills/`, `docs/`, and root `.md` files; excludes `commands/` (prompt templates) (#158)
- Documented linting and formatting conventions in CONTRIBUTING.md with Make targets (#158)
- Added explicit `name:` frontmatter to 9 workflow commands across `retrospectives/`, `discovery/`, `planning/`, and `execution/` directories — documents intent and protects against filename renames (filename-derived fallback was already working correctly) (#182, #183, #184, #185)

### Fixed
- README: restored the broken link to the Workflow Commands Reference docs. The paragraph began with `<!-- WORKFLOW_COUNT -->`, which CommonMark parses as an HTML block and disables inline markdown, causing the embedded link to render as literal text (#180)
- `commands/common-ground/COMMAND.md`: added explicit `name: common-ground` so the slash command registers as `/common-ground`. Without it, Claude Code derived the name from the filename (`COMMAND.md`) and registered it as `/COMMAND` (#186)

### Contributors
- @modir — Fix broken Workflow Commands docs link in README (#180)
- @xiaolai — Add missing `name:` frontmatter fields across workflow commands (#182, #183, #184, #185, #186)

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**Documentation:** https://jeffallan.github.io/claude-skills/