feat: 完成 Codex Issue Plan-Execute Skill v2.0 优化

- 新增 OPTIMIZATION_SUMMARY.md，详细记录优化过程和成果
- 新增 README_OPTIMIZATION.md，概述优化后的文件结构和关键指标
- 创建 specs/agent-roles.md，整合 Planning Agent 和 Execution Agent 的角色定义
- 合并多个提示词文件，减少内容重复，优化 Token 使用
- 新建 ARCHITECTURE.md 和 INDEX.md，提供系统架构和文档导航
- 添加 CONTENT_MIGRATION_REPORT.md，确保内容迁移的完整性和零丢失
- 更新文件引用，确保向后兼容性，添加弃用通知

ccw/src/commands/cli.ts

@@ -138,6 +138,7 @@ interface CliExecOptions {
   base?: string; // Review changes against base branch
   commit?: string; // Review changes from specific commit
   title?: string; // Optional title for review summary
+  skipGitRepoCheck?: boolean; // Skip git repository check (codex only)
   // Template/Rules options
   rule?: string; // Template name for auto-discovery (defines $PROTO and $TMPL env vars)
   // Output options
@@ -1006,7 +1007,8 @@ async function execAction(positionalPrompt: string | undefined, options: CliExec
       uncommitted,
       base,
       commit,
-      title
+      title,
+      skipGitRepoCheck
       // Rules are now concatenated directly into prompt (no env vars)
     }, onOutput); // Always pass onOutput for real-time dashboard streaming
 

ccw/src/tools/cli-executor-core.ts

@@ -369,6 +369,7 @@ const ParamsSchema = z.object({
   base: z.string().optional(), // Review changes against base branch
   commit: z.string().optional(), // Review changes from specific commit
   title: z.string().optional(), // Optional title for review summary
+  skipGitRepoCheck: z.boolean().optional(), // Skip git repository check (codex only)
   // Rules env vars (PROTO, TMPL) - will be passed to subprocess environment
   rulesEnv: z.object({
     PROTO: z.string().optional(),