feat(cli): 添加 --rule 选项支持模板自动发现

重构 ccw cli 模板系统：

- 新增 template-discovery.ts 模块，支持扁平化模板自动发现
- 添加 --rule <template> 选项，自动加载 protocol 和 template
- 模板目录从嵌套结构 (prompts/category/file.txt) 迁移到扁平结构 (prompts/category-function.txt)
- 更新所有 agent/command 文件，使用 $PROTO $TMPL 环境变量替代 $(cat ...) 模式
- 支持模糊匹配：--rule 02-review-architecture 可匹配 analysis-review-architecture.txt

其他更新：
- Dashboard: 添加 Claude Manager 和 Issue Manager 页面
- Codex-lens: 增强 chain_search 和 clustering 模块

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

.claude/agents/debug-explore-agent.md

@@ -105,7 +105,7 @@ TASK: • Analyze error pattern • Identify potential root causes • Suggest t
 MODE: analysis
 CONTEXT: @{affected_files}
 EXPECTED: Structured hypothesis list with priority ranking
-RULES: $(cat ~/.claude/workflows/cli-templates/prompts/analysis/01-diagnose-bug-root-cause.txt) | Focus on testable conditions
+RULES: $PROTO $TMPL | Focus on testable conditions
 " --tool gemini --mode analysis --cd {project_root}
 ```
 
@@ -213,7 +213,7 @@ EXPECTED:
 - Evidence summary
 - Root cause identification (if confirmed)
 - Next steps (if inconclusive)
-RULES: $(cat ~/.claude/workflows/cli-templates/prompts/analysis/01-diagnose-bug-root-cause.txt) | Evidence-based reasoning only
+RULES: $PROTO $TMPL | Evidence-based reasoning only
 " --tool gemini --mode analysis
 ```
 
@@ -271,7 +271,7 @@ TASK:
 MODE: write
 CONTEXT: @{affected_files}
 EXPECTED: Working fix that addresses root cause
-RULES: $(cat ~/.claude/workflows/cli-templates/prompts/development/02-implement-feature.txt) | Minimal changes only
+RULES: $PROTO $TMPL | Minimal changes only
 " --tool codex --mode write --cd {project_root}
 ```