docs: Add blog post and new slash commands for development workflow

- Add blog post: 4 Essential Slash Commands I Use in Every Project
- Add new slash commands: /doc-refactor, /setup-ci-cd, /unit-test-expand
- Update slash-commands README with comprehensive documentation
- Simplify /push-all command structure
- Archive add-blog-post-slash-commands change
- Add blog-post spec and pending openspec changes

01-slash-commands/setup-ci-cd.md

@@ -0,0 +1,25 @@
+---
+name: Setup CI/CD Pipeline
+description: Implement pre-commit hooks and GitHub Actions for quality assurance
+tags: ci-cd, devops, automation
+---
+
+# Setup CI/CD Pipeline
+
+Implement comprehensive DevOps quality gates adapted to project type:
+
+1. **Analyze project**: Detect language(s), framework, build system, and existing tooling
+2. **Configure pre-commit hooks** with language-specific tools:
+   - Formatting: Prettier/Black/gofmt/rustfmt/etc.
+   - Linting: ESLint/Ruff/golangci-lint/Clippy/etc.
+   - Security: Bandit/gosec/cargo-audit/npm audit/etc.
+   - Type checking: TypeScript/mypy/flow (if applicable)
+   - Tests: Run relevant test suites
+3. **Create GitHub Actions workflows** (.github/workflows/):
+   - Mirror pre-commit checks on push/PR
+   - Multi-version/platform matrix (if applicable)
+   - Build and test verification
+   - Deployment steps (if needed)
+4. **Verify pipeline**: Test locally, create test PR, confirm all checks pass
+
+Use free/open-source tools. Respect existing configs. Keep execution fast.