feat(marketplace): command consolidation + 8 new plugins (v8.1.0 → v9.0.0) [BREAKING]

Phase 1b: Rename all ~94 commands across 12 plugins to /<noun> <action>
sub-command pattern. Git-flow consolidated from 8→5 commands (commit
variants absorbed into --push/--merge/--sync flags). Dispatch files,
name: frontmatter, and cross-reference updates for all plugins.

Phase 2: Design documents for 8 new plugins in docs/designs/.

Phase 3: Scaffold 8 new plugins — saas-api-platform, saas-db-migrate,
saas-react-platform, saas-test-pilot, data-seed, ops-release-manager,
ops-deploy-pipeline, debug-mcp. Each with plugin.json, commands, agents,
skills, README, and claude-md-integration. Marketplace grows from 12→20.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/ops-release-manager/commands/release-validate.md

@@ -0,0 +1,75 @@
+---
+name: release validate
+description: Pre-release validation — verify version consistency, changelog, dependencies, and readiness
+---
+
+# /release validate
+
+Run pre-release checks to verify the project is ready for release.
+
+## Visual Output
+
+```
++----------------------------------------------------------------------+
+|  RELEASE-MANAGER - Validate Release                                   |
++----------------------------------------------------------------------+
+```
+
+## Skills to Load
+
+- skills/version-detection.md
+- skills/changelog-conventions.md
+
+## Process
+
+1. **Version Consistency**
+   - Read version from all known locations
+   - Verify all locations report the same version
+   - Check version is greater than the latest git tag
+   - Verify version follows SemVer format
+
+2. **Changelog Validation**
+   - Verify [X.Y.Z] section exists with today's date (or recent date)
+   - Check all required categories are present if entries exist
+   - Verify no empty [Unreleased] content was left behind
+   - Check comparison links are updated
+
+3. **Git State**
+   - Working directory is clean
+   - Branch is up to date with remote
+   - No merge conflicts pending
+   - All CI checks passing (if detectable)
+
+4. **Dependency Check**
+   - Lock file is up to date (package-lock.json, poetry.lock, Cargo.lock)
+   - No known vulnerable dependencies (if audit tool available)
+   - No unpinned dependencies in production config
+
+5. **Documentation**
+   - README references correct version
+   - Migration guide exists for major versions
+   - Breaking changes are documented
+
+6. **Report**
+   - Show pass/fail for each check
+   - Block release if any critical check fails
+   - Warn on non-critical issues
+
+## Output Format
+
+```
+## Release Validation: v2.4.0
+
+### Checks
+| Check | Status | Details |
+|-------|--------|---------|
+| Version consistency | PASS | 3/3 files match v2.4.0 |
+| Changelog | PASS | [2.4.0] section with 5 entries |
+| Git state | PASS | Clean, up to date |
+| Lock file | PASS | package-lock.json current |
+| Dependencies | WARN | 1 advisory (low severity) |
+| Documentation | PASS | README updated |
+
+### Result: READY FOR RELEASE
+1 warning (non-blocking). Proceed with `/release tag`.
+```