feat: Enhance team lifecycle roles with checkpoint handling and inner loop execution

- Added checkpoint gate handling to the coordinator role, defining behavior based on quality gate results.
- Updated planner role to utilize inner loop pattern for structured implementation planning and reporting.
- Revised writer role to implement inner loop for document generation, delegating CLI execution to a subagent.
- Introduced a new doc-generation subagent for isolated CLI calls and document generation strategies.
- Enhanced UI components in the frontend to display job statuses, last run times, and improved error handling.
- Updated localization files to include new strings for job details and status banners.
- Improved CSS styles for markdown previews to enhance readability and presentation.

.claude/skills/team-lifecycle-v4/roles/writer/commands/generate-doc.md

@@ -2,7 +2,12 @@
 
 ## Purpose
 
-Multi-CLI document generation for 4 document types. Each uses parallel or staged CLI analysis, then synthesizes into templated documents.
+Document generation strategy reference. Used by doc-generation-subagent.md as prompt source.
+Writer 主 agent 不再直接执行此文件中的 CLI 调用，而是将对应段落传入 subagent prompt。
+
+## Usage
+
+Writer Phase 3 加载此文件中对应 doc-type 的策略段落，嵌入 subagent prompt 的 "Execution Strategy" 字段。
 
 ## Phase 2: Context Loading