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/style/StylePage.tsx

@@ -0,0 +1,48 @@
+"use client";
+
+import { AppShell } from "@/components/AppShell";
+import type { ProjectResponse } from "@/lib/api/types";
+import { useStyleLearn } from "@/lib/style/useStyleLearn";
+import type { Fingerprint, StyleLearnMode } from "@/lib/style/style";
+import { FingerprintView } from "./FingerprintView";
+import { StyleUpload } from "./StyleUpload";
+
+interface StylePageProps {
+  project: ProjectResponse;
+  initialFingerprint: Fingerprint | null;
+}
+
+// 文风页（UX §6.9）：左侧上传样本学文风，右侧展示 16 维指纹 + 证据。
+export function StylePage({ project, initialFingerprint }: StylePageProps) {
+  const learn = useStyleLearn(initialFingerprint);
+
+  const onLearn = (samples: string[], mode: StyleLearnMode): void => {
+    void learn.learn(project.id, samples, mode);
+  };
+
+  return (
+    <AppShell
+      title={`〈${project.title}〉`}
+      subtitle="文风指纹"
+      projectId={project.id}
+      activeNav="style"
+    >
+      <div className="grid h-[calc(100vh-4rem)] grid-cols-1 lg:grid-cols-[28rem_1fr]">
+        <section className="flex flex-col overflow-auto border-r border-line bg-panel px-6 py-6">
+          <h1 className="mb-3 font-serif text-lg text-ink">学习文风</h1>
+          <StyleUpload
+            busy={learn.busy}
+            pollStatus={learn.pollStatus === "idle" ? "idle" : learn.pollStatus}
+            progress={learn.progress}
+            hasFingerprint={learn.fingerprint !== null}
+            onLearn={onLearn}
+          />
+        </section>
+
+        <section className="overflow-auto bg-bg px-6 py-6">
+          <FingerprintView fingerprint={learn.fingerprint} />
+        </section>
+      </div>
+    </AppShell>
+  );
+}