feat: M4 文风 + M5 生成/多provider/Skill + Kimi Code 订阅接入 + 本地联调修复

M4（文风）: style-auditor 双轨（提取指纹/漂移第四审）+ jobs 长任务框架(zombie reaper) + 回炉 refine + GET /style read-back。
M5（生成+扩展）: worldbuilder/character-gen（入库 continuity 409 gate + partition_writes 白名单 + schema→JSONB 形变）；
  网关多 provider 回退链/熔断/能力降级（Anthropic/Gemini 适配器）；Skill registry + 表权限沙箱 + 规则；
  前端 角色生成器/世界观/Codex/规则页/技能库/⌘K 命令面板。
K1（Kimi Code 订阅接入）: OAuth device-flow（kimi-code）+ 静态 Console key（kimi-code-key）两路径；
  coding 端点 KimiCLI 伪造头（实测 UA allow-list 门禁，缺则 403）+ JSON 模式结构化（thinking ⊥ tool_choice）。
本地联调修复: CORS 中间件；assemble 注入 premise+「写第N章」指令（修空 prompt 400）；
  GET /outline·/draft read-back + 大纲/工作台/审稿页重载；写页 client/server 常量边界 + notFound 健壮化；
  字数 toLocaleString locale 水合；审稿页终稿从已存草稿 seed（修 accept 422）。
门禁: backend ruff/mypy(157)/alembic 无漂移/pytest 451 · frontend lint/tsc/vitest/build。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/web/lib/command/palette.ts

@@ -0,0 +1,154 @@
+// 命令面板（⌘K）纯逻辑：命令清单组装 + 模糊过滤 + 键盘选择状态机。
+// 对齐 UX §7（快速导航/动作）。纯逻辑，便于 node 环境单测（不依赖 DOM）。
+
+export type CommandKind = "navigate" | "action";
+
+export interface Command {
+  id: string;
+  // 展示标题（如「写本章」「跳转伏笔」）。
+  title: string;
+  // 用于匹配的关键词（拼音/别名），与 title 一起参与过滤。
+  keywords: string[];
+  kind: CommandKind;
+  // navigate：跳转路径；action：交由调用方按 id 分派。
+  href?: string;
+  group: string;
+}
+
+// 项目内可用命令（projectId 已知）。导航项给 href；动作项（生成角色等）给 id。
+export function projectCommands(projectId: string): Command[] {
+  const p = `/projects/${projectId}`;
+  return [
+    {
+      id: "nav-write",
+      title: "写本章",
+      keywords: ["write", "写作", "工作台", "起草"],
+      kind: "navigate",
+      href: `${p}/write`,
+      group: "导航",
+    },
+    {
+      id: "nav-review",
+      title: "审稿",
+      keywords: ["review", "质检", "冲突", "裁决"],
+      kind: "navigate",
+      href: `${p}/review`,
+      group: "导航",
+    },
+    {
+      id: "nav-outline",
+      title: "大纲",
+      keywords: ["outline", "节拍", "beats"],
+      kind: "navigate",
+      href: `${p}/outline`,
+      group: "导航",
+    },
+    {
+      id: "nav-foreshadow",
+      title: "跳转伏笔",
+      keywords: ["foreshadow", "伏笔", "看板", "线索"],
+      kind: "navigate",
+      href: `${p}/foreshadow`,
+      group: "导航",
+    },
+    {
+      id: "nav-style",
+      title: "文风",
+      keywords: ["style", "文风", "指纹", "漂移"],
+      kind: "navigate",
+      href: `${p}/style`,
+      group: "导航",
+    },
+    {
+      id: "nav-codex",
+      title: "搜设定",
+      keywords: ["codex", "设定库", "人物", "世界观", "角色"],
+      kind: "navigate",
+      href: `${p}/codex`,
+      group: "导航",
+    },
+    {
+      id: "nav-rules",
+      title: "规则",
+      keywords: ["rules", "规则", "硬规则"],
+      kind: "navigate",
+      href: `${p}/rules`,
+      group: "导航",
+    },
+    {
+      id: "nav-skills",
+      title: "技能库",
+      keywords: ["skills", "技能", "注册表"],
+      kind: "navigate",
+      href: `${p}/skills`,
+      group: "导航",
+    },
+    {
+      id: "action-gen-character",
+      title: "生成角色",
+      keywords: ["character", "角色", "生成器", "群像"],
+      kind: "action",
+      href: `${p}/codex?gen=character`,
+      group: "动作",
+    },
+    {
+      id: "action-gen-world",
+      title: "生成世界观",
+      keywords: ["world", "世界观", "设定", "设计器"],
+      kind: "action",
+      href: `${p}/codex?gen=world`,
+      group: "动作",
+    },
+  ];
+}
+
+// 全局命令（无 projectId 时；如作品库/设置）。
+export function globalCommands(): Command[] {
+  return [
+    {
+      id: "nav-home",
+      title: "作品库",
+      keywords: ["home", "作品", "library", "projects"],
+      kind: "navigate",
+      href: "/",
+      group: "导航",
+    },
+    {
+      id: "nav-settings",
+      title: "设置",
+      keywords: ["settings", "设置", "凭据", "provider", "档位"],
+      kind: "navigate",
+      href: "/settings/providers",
+      group: "导航",
+    },
+  ];
+}
+
+// 模糊过滤：空查询返回全部；否则在 title + keywords 上做大小写无关子串匹配（保持原顺序）。
+export function filterCommands(
+  commands: readonly Command[],
+  query: string,
+): Command[] {
+  const q = query.trim().toLowerCase();
+  if (!q) return [...commands];
+  return commands.filter((cmd) => {
+    if (cmd.title.toLowerCase().includes(q)) return true;
+    return cmd.keywords.some((kw) => kw.toLowerCase().includes(q));
+  });
+}
+
+// 键盘高亮索引在 [0, len) 内循环（空列表归 0）。
+export function clampHighlight(index: number, length: number): number {
+  if (length <= 0) return 0;
+  const wrapped = index % length;
+  return wrapped < 0 ? wrapped + length : wrapped;
+}
+
+// 上/下方向移动高亮（循环）。
+export function moveHighlight(
+  index: number,
+  delta: number,
+  length: number,
+): number {
+  return clampHighlight(index + delta, length);
+}