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/components/LeftNav.tsx

@@ -3,7 +3,15 @@
 import Link from "next/link";
 import { usePathname } from "next/navigation";
 
-export type ActiveNav = "write" | "outline" | "foreshadow" | "review";
+export type ActiveNav =
+  | "write"
+  | "outline"
+  | "foreshadow"
+  | "review"
+  | "style"
+  | "codex"
+  | "rules"
+  | "skills";
 
 interface LeftNavProps {
   // 项目内页传 projectId → 展开项目级入口（大纲/伏笔/审稿，UX §3.1）。
@@ -50,8 +58,30 @@ function projectItems(projectId: string): NavItem[] {
       enabled: true,
       key: "review",
     },
-    { href: "#codex", label: "设定库", enabled: false },
-    { href: "#style", label: "文风", enabled: false },
+    {
+      href: `/projects/${projectId}/style`,
+      label: "文风",
+      enabled: true,
+      key: "style",
+    },
+    {
+      href: `/projects/${projectId}/codex`,
+      label: "设定库",
+      enabled: true,
+      key: "codex",
+    },
+    {
+      href: `/projects/${projectId}/rules`,
+      label: "规则",
+      enabled: true,
+      key: "rules",
+    },
+    {
+      href: `/projects/${projectId}/skills`,
+      label: "技能库",
+      enabled: true,
+      key: "skills",
+    },
   ];
 }