chore: bump version to v2.2.0 and update documentation

Version updates:
- marketplace.json metadata.version: 2.0.0 → 2.2.0
- marketplace.json projman version: 2.0.0 → 2.2.0
- plugins/projman/plugin.json version: 2.0.0 → 2.2.0

Documentation updates:
- CHANGELOG.md: Changed [Unreleased] to [2.2.0] - 2026-01-20
- README.md: Updated projman version to v2.2.0
- README.md: Added /review and /test-check to commands list
- README.md: Added code-reviewer to agent list
- README.md: Updated Key Features section to v2.2.0
- README.md: Added validate-marketplace.sh to structure
- plugins/projman/README.md: Updated title to v2.2.0
- plugins/projman/README.md: Updated version changelog

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

README.md

@@ -4,19 +4,20 @@ A collection of Claude Code plugins for project management, infrastructure autom
 
 ## Plugins
 
-### [projman](./plugins/projman/README.md) v2.1.0
+### [projman](./plugins/projman/README.md) v2.2.0
 **Sprint Planning and Project Management**
 
 AI-guided sprint planning with full Gitea integration. Transforms a proven 15-sprint workflow into a distributable plugin.
 
-- Three-agent model: Planner, Orchestrator, Executor
+- Three-agent model: Planner, Orchestrator, Executor, Code Reviewer
 - Intelligent label suggestions from 43-label taxonomy
 - Lessons learned capture via Gitea Wiki
 - Native issue dependencies with parallel execution
 - Milestone management for sprint organization
 - Branch-aware security (development/staging/production)
+- Pre-sprint-close code quality review and test verification
 
-**Commands:** `/sprint-plan`, `/sprint-start`, `/sprint-status`, `/sprint-close`, `/labels-sync`, `/initial-setup`
+**Commands:** `/sprint-plan`, `/sprint-start`, `/sprint-status`, `/sprint-close`, `/labels-sync`, `/initial-setup`, `/review`, `/test-check`
 
 ### [claude-config-maintainer](./plugins/claude-config-maintainer/README.md)
 **CLAUDE.md Optimization and Maintenance**
@@ -208,9 +209,10 @@ support-claude-mktplace/
 │   ├── CANONICAL-PATHS.md         # Single source of truth for paths
 │   └── references/
 └── scripts/                       # Setup and maintenance scripts
+    └── validate-marketplace.sh    # Marketplace compliance validation
 ```
 
-## Key Features (v2.1.0)
+## Key Features (v2.2.0)
 
 ### Parallel Execution
 Tasks are batched by dependency graph for optimal parallel execution: