feat(skills): 完善视频生产 pipeline 及新增健身跟练账号

- SKILL.md: 新增工作流阶段定义、质量卡点、分镜规则
- manifest-schema.md: 补充完整字段规范及类型定义
- phase-tts.js: 优化 TTS 合成长逻辑，添加进度追踪
- capcut-tracks.js: 扩展轨道构建能力，支持更多元素类型
- capcut-timeline.js: 改进时间线生成，支持淡入淡出
- capcut_assemble.js: 新增 assemble 阶段完整实现
- cmd-init.js: 完善 init 命令逻辑
- qwen-tts.js: 调整超时配置
- accounts/禁忌帝王学: 更新拆分/图像/台词提示词
- accounts/健身跟练: 新增账号含 account.json 及全套提示词模板
- 新增 workflow-issues-20260501.md 参考文档

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.claude/skills/video-from-script/scripts/pipeline.js

@@ -34,13 +34,13 @@ const { createAccount } = require('./lib/cmd-create-account')
 // 阶段注册表
 // ============================================================================
 
-const ALL_PHASES = ['images', 'upload', 'videos', 'tts', 'assemble']
+const ALL_PHASES = ['tts', 'images', 'upload', 'videos', 'assemble']
 
 const PHASE_HANDLERS = {
+  tts: phaseTts,
   images: phaseImages,
   upload: phaseUpload,
   videos: phaseVideos,
-  tts: phaseTts,
   assemble: phaseAssemble,
 }
 
@@ -229,11 +229,12 @@ async function main() {
   console.log('  pipeline.js validate --manifest <path>')
   console.log('  pipeline.js confirm --manifest <path> --all')
   console.log('  pipeline.js confirm --manifest <path> --items 1,3,5')
-  console.log('  pipeline.js run --manifest <path> [--account id] [--phase p1,p2] [--resume] [--retry-failed]')
+  console.log('  pipeline.js run --manifest <path> --phase tts,images,upload,videos,assemble')
+  console.log('  pipeline.js run --manifest <path> --resume')
   console.log('  pipeline.js status --manifest <path>')
   console.log('')
   console.log('Manifest 路径约定: output/{account}_{date}_{NNN}/manifest.json（同天自增序号）')
-  console.log('阶段: images, upload, videos, tts, assemble')
+  console.log('阶段: tts → images → upload → videos → assemble（TTS提前）')
 }
 
 if (require.main === module) {