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/command/CommandPalette.tsx

@@ -0,0 +1,152 @@
+"use client";
+
+import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+import { useRouter } from "next/navigation";
+
+import {
+  filterCommands,
+  globalCommands,
+  moveHighlight,
+  projectCommands,
+  type Command,
+} from "@/lib/command/palette";
+
+// 从 pathname 抽取当前 projectId（/projects/<id>/...）。
+function projectIdFromPath(pathname: string): string | null {
+  const m = pathname.match(/^\/projects\/([^/]+)/);
+  return m ? m[1] : null;
+}
+
+interface CommandPaletteProps {
+  pathname: string;
+}
+
+// 命令面板（⌘K，UX §7）：键盘触发的快速导航/动作。
+// 焦点管理（打开自动聚焦输入框、Esc 关闭、上下选择、回车执行）+ a11y（role=dialog/listbox）。
+export function CommandPalette({ pathname }: CommandPaletteProps) {
+  const router = useRouter();
+  const [open, setOpen] = useState(false);
+  const [query, setQuery] = useState("");
+  const [highlight, setHighlight] = useState(0);
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  const projectId = projectIdFromPath(pathname);
+  const commands = useMemo<Command[]>(
+    () =>
+      projectId
+        ? [...projectCommands(projectId), ...globalCommands()]
+        : globalCommands(),
+    [projectId],
+  );
+  const results = useMemo(
+    () => filterCommands(commands, query),
+    [commands, query],
+  );
+
+  const close = useCallback((): void => {
+    setOpen(false);
+    setQuery("");
+    setHighlight(0);
+  }, []);
+
+  const run = useCallback(
+    (cmd: Command | undefined): void => {
+      if (!cmd) return;
+      close();
+      if (cmd.href) router.push(cmd.href);
+    },
+    [close, router],
+  );
+
+  // ⌘K / Ctrl+K 全局开关。
+  useEffect(() => {
+    const onKey = (e: KeyboardEvent): void => {
+      if ((e.metaKey || e.ctrlKey) && e.key.toLowerCase() === "k") {
+        e.preventDefault();
+        setOpen((prev) => !prev);
+      }
+    };
+    window.addEventListener("keydown", onKey);
+    return () => window.removeEventListener("keydown", onKey);
+  }, []);
+
+  // 打开时聚焦输入框；切查询重置高亮。
+  useEffect(() => {
+    if (open) inputRef.current?.focus();
+  }, [open]);
+  useEffect(() => {
+    setHighlight(0);
+  }, [query]);
+
+  if (!open) return null;
+
+  const onInputKey = (e: React.KeyboardEvent): void => {
+    if (e.key === "Escape") {
+      e.preventDefault();
+      close();
+    } else if (e.key === "ArrowDown") {
+      e.preventDefault();
+      setHighlight((h) => moveHighlight(h, 1, results.length));
+    } else if (e.key === "ArrowUp") {
+      e.preventDefault();
+      setHighlight((h) => moveHighlight(h, -1, results.length));
+    } else if (e.key === "Enter") {
+      e.preventDefault();
+      run(results[highlight]);
+    }
+  };
+
+  return (
+    <div
+      className="fixed inset-0 z-[60] flex items-start justify-center bg-black/30 pt-[15vh] motion-safe:transition-opacity"
+      onClick={close}
+    >
+      <div
+        role="dialog"
+        aria-modal="true"
+        aria-label="命令面板"
+        className="w-full max-w-lg overflow-hidden rounded-lg border border-line bg-panel shadow-paper"
+        onClick={(e) => e.stopPropagation()}
+      >
+        <input
+          ref={inputRef}
+          value={query}
+          onChange={(e) => setQuery(e.target.value)}
+          onKeyDown={onInputKey}
+          placeholder="搜索命令或页面…（写本章 / 审稿 / 生成角色 / 跳转伏笔 / 搜设定）"
+          aria-label="命令搜索"
+          aria-controls="command-list"
+          className="w-full border-b border-line bg-bg px-4 py-3 text-sm text-ink outline-none"
+        />
+        <ul
+          id="command-list"
+          role="listbox"
+          aria-label="命令列表"
+          className="max-h-80 overflow-auto py-1"
+        >
+          {results.length === 0 ? (
+            <li className="px-4 py-3 text-sm text-ink-soft">无匹配命令</li>
+          ) : (
+            results.map((cmd, i) => (
+              <li
+                key={cmd.id}
+                role="option"
+                aria-selected={i === highlight}
+                onMouseEnter={() => setHighlight(i)}
+                onClick={() => run(cmd)}
+                className={`flex cursor-pointer items-center justify-between px-4 py-2 text-sm ${
+                  i === highlight
+                    ? "bg-[var(--color-cinnabar-wash)] text-cinnabar"
+                    : "text-ink"
+                }`}
+              >
+                <span>{cmd.title}</span>
+                <span className="text-xs text-ink-soft">{cmd.group}</span>
+              </li>
+            ))
+          )}
+        </ul>
+      </div>
+    </div>
+  );
+}

apps/web/components/command/CommandPaletteMount.tsx

@@ -0,0 +1,12 @@
+"use client";
+
+import { usePathname } from "next/navigation";
+
+import { CommandPalette } from "./CommandPalette";
+
+// 全局挂载命令面板（⌘K）：读当前 pathname 注入项目上下文。
+// 放在 RootLayout 内，对所有页面生效。
+export function CommandPaletteMount() {
+  const pathname = usePathname();
+  return <CommandPalette pathname={pathname ?? "/"} />;
+}