feat: Simplify agent architecture with test-fix workflow (v3.2.0)

Major architectural improvements:
- Simplify from 3 agents to 2 core agents
- Adopt "Tests Are the Review" philosophy
- Enhance test-gen as 4-phase orchestrator
- Simplify review.md following update-memory pattern

Agent Changes:
- NEW: @test-fix-agent - Execute tests, diagnose failures, fix code
- ENHANCED: @code-developer - Now writes implementation + tests together
- REMOVED: @code-review-agent, @code-review-test-agent

Task Type Updates:
- "test" → "test-gen" (generate tests)
- NEW: "test-fix" (execute and fix tests)

Workflow Improvements:
- test-gen.md: 4-phase orchestrator (context-gather → concept-enhanced → task-generate → execute)
- review.md: Simplified to optional specialized reviews (security, architecture, quality, action-items)
- All 16 files updated with new agent references

See CHANGELOG.md for full details.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

README_CN.md

@@ -98,8 +98,8 @@ bash <(curl -fsSL https://raw.githubusercontent.com/catlog22/Claude-Code-Workflo
 # 或验证 TDD 合规性（TDD 工作流）
 /workflow:tdd-verify
 
-# 最终质量审查
-/workflow:review
+# 可选：手动审查（仅在明确需要时使用）
+# /workflow:review  # 测试通过 = 代码已批准
 ```
 
 ### 简单任务快速入门
@@ -155,7 +155,7 @@ bash <(curl -fsSL https://raw.githubusercontent.com/catlog22/Claude-Code-Workflo
 | `/workflow:status` | 显示工作流的当前状态。 |
 | `/workflow:test-gen` | 从实现中自动生成测试计划。 |
 | `/workflow:tdd-verify` | 验证 TDD 合规性并生成质量报告。 |
-| `/workflow:review` | 对已完成的工作启动质量保证审查。 |
+| `/workflow:review` | **可选** 手动审查（仅在明确需要时使用，测试通过即代表代码已批准）。 |
 
 ### **任务与内存命令**