feat(video-pipeline): 优化子 Agent 模板交互并新增模板路径工具

- 重构 SKILL.md，要求子 Agent 直接读取模板文件而非由主 Agent 摘要传送
- 新增 get-template-path.js 脚本，支持按账号和类型获取模板文件绝对路径
- 移除 capcut_assemble.js 中的关键字氛围词功能及相关依赖

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

@@ -20,11 +20,11 @@ const fs = require('fs')
 const { US, parseArgs, getResolution, getAudioDurationSec } = require('./lib/capcut-api')
 const { buildTimeline, adjustVideoSpeed } = require('./lib/capcut-timeline')
 const {
-  loadAccountConfig, loadSubtitleStyle, loadKeywordStyle,
+  loadAccountConfig, loadSubtitleStyle,
   loadKenBurns, loadTransitions,
   addImages, addVideos, addKenBurns,
   addVoiceover, addBGM,
-  addSubtitles, addKeywordOverlays,
+  addSubtitles,
   addEffects, addFilter,
 } = require('./lib/capcut-tracks')
 const { saveManifest } = require('./lib/pipeline-utils')
@@ -239,7 +239,7 @@ async function assemble(args) {
 
   const steps = []
   if (mode === 'images') steps.push('upload')
-  steps.push('draft', 'materials', 'kenburns', 'audio_oss', 'voiceover', 'audio', 'subtitles', 'keywords', 'effects', 'filter', 'save', 'sync')
+  steps.push('draft', 'materials', 'kenburns', 'audio_oss', 'voiceover', 'audio', 'subtitles', 'effects', 'filter', 'save', 'sync')
   const totalSteps = steps.length
   let step = 0
 
@@ -387,16 +387,7 @@ async function assemble(args) {
     console.log('   跳过')
   }
 
-  // -- 关键字氛围词 --
-  step++; console.log(`[${step}/${totalSteps}] 添加关键字氛围词...`)
-  const keywordStyle = loadKeywordStyle(manifest)
-  if (Object.keys(keywordStyle).length > 0 && items.some(i => i.keyword)) {
-    await addKeywordOverlays(draftUrl, items, timeline, keywordStyle)
-  } else {
-    console.log('   跳过（无关键字或未配置 keywordStyle）')
-  }
-
-  // -- 特效 --
+  // -- 特效 --  // -- 特效 --
   step++; console.log(`[${step}/${totalSteps}] 添加特效...`)
   if (finalEffects) {
     try {