AI 小说工坊：主编 + 作家多模型协作写作应用

- Nuxt 4 + Nuxt UI 4 + AI SDK 7 + Drizzle/SQLite
- 主编规划大纲与章节简报、选派作家；作家流式写入章节文件并实时推送前端
- 逐章确认模式（默认）与自动模式；摘要与故事记忆
- 酒馆角色卡（PNG/JSON，V1-V3）与世界书导入
- 自定义最高优先级系统提示词、审稿/修改/多版本、任务日志与提示词检视
- 模拟 LLM 服务与端到端测试脚本

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

scripts/mock-llm.mjs

@@ -0,0 +1,129 @@
+// 模拟 OpenAI 兼容接口，用于本地联调和端到端测试（不消耗真实 token）
+// 用法：node scripts/mock-llm.mjs [port]
+// - 模型 id 含 "trunc" 时，作家第一轮输出会以 finish_reason=length 结束，用于测试自动续写
+import { createServer } from 'node:http'
+
+const port = Number(process.argv[2] || process.env.MOCK_PORT || 4010)
+const log = (...a) => console.log('[mock]', ...a)
+
+function json(res, status, body) {
+  res.writeHead(status, { 'Content-Type': 'application/json' })
+  res.end(JSON.stringify(body))
+}
+
+function completion(model, message, finish = 'stop') {
+  return {
+    id: `chatcmpl-${Date.now()}`,
+    object: 'chat.completion',
+    created: Math.floor(Date.now() / 1000),
+    model,
+    choices: [{ index: 0, message: { role: 'assistant', content: null, ...message }, finish_reason: finish }],
+    usage: { prompt_tokens: 1200, completion_tokens: 300, total_tokens: 1500 }
+  }
+}
+
+const toolCall = (name, args) => ({
+  id: `call_${name}_${Math.random().toString(36).slice(2, 8)}`,
+  type: 'function',
+  function: { name, arguments: JSON.stringify(args) }
+})
+
+const text = m => (typeof m.content === 'string' ? m.content : (m.content || []).map(p => p.text || '').join(''))
+
+function handleTools(body) {
+  const names = body.tools.map(t => t.function.name)
+  const hasToolResult = body.messages.some(m => m.role === 'tool')
+  const prompt = body.messages.filter(m => m.role === 'user').map(text).join('\n')
+
+  if (names.includes('set_chapter_plan')) {
+    if (hasToolResult) return completion(body.model, { content: '整体采用三幕结构，前三章完成人物登场与核心冲突的建立。' })
+    const m = prompt.match(/从第(\d+)章开始的 (\d+) 个章节/)
+    const from = m ? Number(m[1]) : 1
+    const count = Math.min(m ? Number(m[2]) : 3, 3)
+    const chapters = Array.from({ length: count }, (_, i) => ({
+      index: from + i,
+      title: ['雨季', '旧城', '回声'][i] ?? `第${from + i}章`,
+      synopsis: `第${from + i}章梗概：主角在雨中重逢旧识，埋下关于旧城往事的悬念。`
+    }))
+    return completion(body.model, { tool_calls: [toolCall('set_chapter_plan', { chapters })] }, 'tool_calls')
+  }
+
+  if (names.includes('write_brief')) {
+    if (hasToolResult) return completion(body.model, { content: '本章以环境开篇，节奏先慢后快。' })
+    const writerId = prompt.match(/id=([a-z0-9]+)｜/)?.[1]
+    const calls = [toolCall('write_brief', {
+      title: '雨落昆明',
+      goal: '让主角与简琳琅在雨中初遇，建立两人之间的张力',
+      plotPoints: ['午后雷声，雨季开始', '主角在骑楼下避雨', '简琳琅撑伞经过，两人短暂交谈', '她留下一个意味深长的问题'],
+      characters: ['简琳琅：表面强势，内心戒备'],
+      setting: '2011 年 5 月底，昆明老街',
+      mood: '潮湿、暧昧、略带不安',
+      targetWords: 1200,
+      endingHook: '她问：你还记得百鸟县吗？'
+    })]
+    if (writerId && !prompt.includes('用户已为本章指定作家')) calls.push(toolCall('assign_writer', { writerId, reason: '擅长氛围描写' }))
+    return completion(body.model, { tool_calls: calls }, 'tool_calls')
+  }
+  return completion(body.model, { content: '好的。' })
+}
+
+function handleText(body) {
+  const system = body.messages.filter(m => m.role === 'system').map(text).join('\n')
+  if (system.includes('资料员')) {
+    return completion(body.model, {
+      content: '```json\n' + JSON.stringify({
+        summary: '雨季的第一声雷后，主角在骑楼下避雨，与撑伞经过的简琳琅短暂交谈。她看似随意，却在离开前提起了百鸟县。',
+        characterStates: [{ name: '简琳琅', state: '刚与主角重逢，情绪克制，似乎有所隐瞒' }],
+        newForeshadowing: ['简琳琅提起百鸟县的真正用意'],
+        resolvedForeshadowing: [],
+        events: ['主角与简琳琅雨中重逢']
+      }) + '\n```'
+    })
+  }
+  return completion(body.model, { content: '## 审稿意见\n\n1. 情节点全部完成。\n2. 结尾钩子可以更含蓄。\n\n**总评分：8/10**' })
+}
+
+function streamChapter(res, body) {
+  const userTurns = body.messages.filter(m => m.role === 'user').length
+  const truncate = body.model.includes('trunc') && userTurns === 1
+  const paragraphs = truncate
+    ? ['午后，一声闷雷从天边滚过来。', '\n\n雨点砸在青石板上，溅起细碎的水花。']
+    : userTurns > 1
+      ? ['\n\n她收起伞，抬眼看他：“你还记得百鸟县吗？”']
+      : ['午后，一声闷雷从天边滚过来。', '\n\n雨来得又急又密，他退到骑楼下。', '\n\n简琳琅撑着一把黑伞从街角走来，高跟鞋踩过积水。', '\n\n“借个地方躲雨。”她说。', '\n\n她收起伞，抬眼看他：“你还记得百鸟县吗？”']
+  res.writeHead(200, { 'Content-Type': 'text/event-stream', 'Cache-Control': 'no-cache', 'Connection': 'keep-alive' })
+  const base = { id: `chatcmpl-${Date.now()}`, object: 'chat.completion.chunk', created: Math.floor(Date.now() / 1000), model: body.model }
+  const send = obj => res.write(`data: ${JSON.stringify({ ...base, ...obj })}\n\n`)
+  send({ choices: [{ index: 0, delta: { role: 'assistant', content: '' }, finish_reason: null }] })
+  const chunks = paragraphs.flatMap(p => p.match(/.{1,4}/gs))
+  let i = 0
+  const timer = setInterval(() => {
+    if (res.destroyed) return clearInterval(timer)
+    if (i < chunks.length) {
+      send({ choices: [{ index: 0, delta: { content: chunks[i++] }, finish_reason: null }] })
+      return
+    }
+    clearInterval(timer)
+    send({ choices: [{ index: 0, delta: {}, finish_reason: truncate ? 'length' : 'stop' }] })
+    send({ choices: [], usage: { prompt_tokens: 2000, completion_tokens: 400, total_tokens: 2400 } })
+    res.write('data: [DONE]\n\n')
+    res.end()
+  }, 15)
+}
+
+createServer(async (req, res) => {
+  const url = new URL(req.url, `http://localhost:${port}`)
+  if (req.method === 'GET' && url.pathname.endsWith('/models')) {
+    return json(res, 200, { object: 'list', data: [{ id: 'mock-editor' }, { id: 'mock-writer-trunc' }] })
+  }
+  if (req.method === 'POST' && url.pathname.endsWith('/chat/completions')) {
+    let raw = ''
+    for await (const c of req) raw += c
+    const body = JSON.parse(raw)
+    if (req.headers.authorization !== 'Bearer test-key') return json(res, 401, { error: { message: 'invalid api key' } })
+    log(body.model, body.stream ? 'stream' : 'json', body.tools ? `tools=${body.tools.map(t => t.function.name).join(',')}` : '')
+    if (body.stream) return streamChapter(res, body)
+    return json(res, 200, body.tools?.length ? handleTools(body) : handleText(body))
+  }
+  json(res, 404, { error: { message: 'not found' } })
+}).listen(port, () => log(`listening on http://localhost:${port}/v1`))