feat(video-from-script): 添加 TTS 音色管理和解析功能

- 在 config.json 中添加 `ttsVoices` 音色库，支持音色名称到 ID 的映射
- 实现 `resolveVoice` 函数，将音色名称解析为实际 ID
- 更新账号系统和批量管道，支持通过音色名称配置 TTS 语音
- Excel 导入和 CLI 参数新增音色字段，支持按行指定不同音色

.claude/skills/video-from-script/scripts/lib/cmd-init.js

@@ -6,7 +6,7 @@
 
 const fs = require('fs')
 const path = require('path')
-const { loadAccountConfig, saveManifest, ensureDir, slugify, ACCOUNTS_DIR, SKILLS_DIR } = require('./pipeline-utils')
+const { loadAccountConfig, loadConfig, resolveVoice, saveManifest, ensureDir, slugify, ACCOUNTS_DIR, SKILLS_DIR } = require('./pipeline-utils')
 
 function initManifest(options) {
   const { account: accountId, mode, items: itemsJson, itemsFile } = options
@@ -17,6 +17,7 @@ function initManifest(options) {
   }
 
   const accountConfig = loadAccountConfig(accountId)
+  const globalConfig = loadConfig()
 
   // 解析 items
   let rawItems
@@ -123,7 +124,8 @@ function initManifest(options) {
     format: options.format || accountConfig.defaultFormat || '9:16',
     mode: resolvedMode,
     references,
-    ...(accountConfig.ttsVoice ? { ttsVoice: accountConfig.ttsVoice } : {}),
+    ...(accountConfig.ttsVoice ? { ttsVoice: resolveVoice(accountConfig.ttsVoice, globalConfig) } : {}),
+    ...(options.ttsVoice ? { ttsVoice: resolveVoice(options.ttsVoice, globalConfig) } : {}),
     ...(accountConfig.ttsInstruction ? { ttsInstruction: accountConfig.ttsInstruction } : {}),
     // 铁律：ttsRate 写死 1.15x，不允许配置覆盖（除非显式传入）
     ttsRate: options.ttsRate || 1.15,

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

@@ -8,11 +8,12 @@ const fs = require('fs')
 const path = require('path')
 
 // 路径常量（基于 lib/ 的父目录 scripts/）
-const SCRIPTS_DIR = path.join(__dirname, '..')
-const SKILLS_DIR = path.join(SCRIPTS_DIR, '..')
-const PROJECT_ROOT = path.join(SKILLS_DIR, '..', '..')
-const CONFIG_PATH = path.join(SKILLS_DIR, 'config.json')
-const ACCOUNTS_DIR = path.join(PROJECT_ROOT, '..', 'accounts')
+const SCRIPTS_DIR = path.join(__dirname, '..')                // scripts/
+const SKILLS_DIR = path.join(SCRIPTS_DIR, '..')                // video-from-script/
+const SKILL_PARENT_DIR = path.join(SKILLS_DIR, '..')           // skills/
+const PROJECT_ROOT = path.join(SKILLS_DIR, '..', '..')         // .claude/
+const CONFIG_PATH = path.join(SKILL_PARENT_DIR, 'config.json') // skills/config.json
+const ACCOUNTS_DIR = path.join(PROJECT_ROOT, '..', 'accounts') // 美图/accounts
 
 // ============================================================================
 // 配置 & Manifest
@@ -22,6 +23,15 @@ function loadConfig() {
   return JSON.parse(fs.readFileSync(CONFIG_PATH, 'utf-8'))
 }
 
+/**
+ * 解析音色：名称 → ID。如果是音色库中的名称则查 ttsVoices 映射表，否则原样返回。
+ */
+function resolveVoice(voice, config) {
+  if (!voice) return voice
+  const voices = (config || loadConfig()).ttsVoices || {}
+  return voices[voice] || voice
+}
+
 function loadManifest(manifestPath) {
   return JSON.parse(fs.readFileSync(manifestPath, 'utf-8'))
 }
@@ -221,6 +231,7 @@ module.exports = {
   CONFIG_PATH,
   ACCOUNTS_DIR,
   loadConfig,
+  resolveVoice,
   loadManifest,
   saveManifest,
   loadAccountConfig,