feat: 工具一 anima-extract，從輕小說章節產生角色包並建立 PR

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

hooks/register.tsx

@@ -2,6 +2,7 @@ import type { Engine, Register } from 'claude-code'
 
 import { CHARACTERS, applyOverrides, findCharacter, personaSection } from './characters'
 import type { Axes } from './characters'
+import { EXTRACT_COMMAND, runExtract } from './extractCommand'
 import { layout, meter, parseFields, remainColor, SEPARATOR, usedColor } from './statusline'
 import type { Segment } from './statusline'
 
@@ -78,6 +79,7 @@ export const register: Register = (on, options) => {
       for (const c of CHARACTERS) {
         await $.command.register({ name: c.slug, description: `啟動《${c.work}》的${c.name}` })
       }
+      await $.command.register({ name: EXTRACT_COMMAND, description: '從輕小說章節萃取作品與角色包，確認後建立 PR' })
       await $.command.register({ name: OFF_COMMAND, description: '離開角色，回到一般的 Claude Code' })
       const saved = await $.store.get(ACTIVE_KEY)
       active = flag('persist', true) && typeof saved === 'string' && findCharacter(saved) ? saved : undefined
@@ -87,6 +89,7 @@ export const register: Register = (on, options) => {
 
   on('command.run', async ($, e, next) => {
     if (!isEnabled) return next(e)
+    if (e.command === EXTRACT_COMMAND) return { text: await runExtract($, e.args) }
     if (e.command === OFF_COMMAND) {
       active = undefined
       await $.store.delete(ACTIVE_KEY)