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/generation/WorldGenerator.tsx

@@ -0,0 +1,78 @@
+"use client";
+
+import { useCallback, useState } from "react";
+
+import { worldEntityRules } from "@/lib/generation/cards";
+import { useWorldGen } from "@/lib/generation/useWorldGen";
+
+interface WorldGeneratorProps {
+  projectId: string;
+}
+
+// 世界观设计器（UX §6.5）：一句话需求 → 预览实体卡（type/name/rules）。
+// 本期世界观入库端点未建（仅预览）；预览结果供作者参考/复制。
+export function WorldGenerator({ projectId }: WorldGeneratorProps) {
+  const gen = useWorldGen();
+  const [brief, setBrief] = useState("");
+
+  const onGenerate = useCallback(async () => {
+    await gen.generate(projectId, brief);
+  }, [gen, projectId, brief]);
+
+  const generating = gen.status === "generating";
+
+  return (
+    <section className="flex flex-col gap-4" aria-label="世界观设计器">
+      <div className="rounded border border-line bg-panel p-4">
+        <h2 className="mb-3 font-serif text-base text-ink">世界观设计器</h2>
+        <label className="mb-3 block text-sm text-ink-soft">
+          设定方向
+          <textarea
+            value={brief}
+            onChange={(e) => setBrief(e.target.value)}
+            placeholder="如：东方修真世界，灵气复苏，宗门林立，强者寿元有限"
+            rows={3}
+            className="mt-1 w-full resize-y rounded border border-line bg-bg px-3 py-2 text-sm text-ink"
+          />
+        </label>
+        <button
+          type="button"
+          onClick={() => void onGenerate()}
+          disabled={generating || brief.trim().length === 0}
+          className="rounded bg-cinnabar px-4 py-2 text-sm text-white disabled:opacity-50"
+        >
+          {generating ? "生成中…" : "生成世界观"}
+        </button>
+      </div>
+
+      {gen.status === "done" && gen.entities.length > 0 ? (
+        <div className="grid grid-cols-1 gap-3 lg:grid-cols-2">
+          {gen.entities.map((entity, i) => (
+            <article
+              key={`${entity.name}-${i}`}
+              className="rounded border border-line bg-panel p-3 text-sm"
+            >
+              <header className="mb-2 flex items-center gap-2">
+                <span className="font-serif text-base text-ink">
+                  {entity.name}
+                </span>
+                <span className="rounded bg-bg px-2 py-0.5 text-xs text-ink-soft">
+                  {entity.type}
+                </span>
+              </header>
+              {worldEntityRules(entity).length > 0 ? (
+                <ul className="flex list-disc flex-col gap-1 pl-5 text-ink-soft">
+                  {worldEntityRules(entity).map((rule, j) => (
+                    <li key={j}>{rule}</li>
+                  ))}
+                </ul>
+              ) : (
+                <p className="text-ink-soft">（无显式硬规则）</p>
+              )}
+            </article>
+          ))}
+        </div>
+      ) : null}
+    </section>
+  );
+}