feat(toolbox): T6 创作工具箱通用生成器框架 — 8 新生成器 + 声明驱动落地页 + P2 收尾

通用执行路径驱动全部生成器（"加生成器=加一份声明"）：
- @llm: ww_agents +7 输出 schema + 7 spec（book-title/blurb/name/golden-finger/
  glossary/opening/fine-outline，只声明 tier）+ build_outline_chapter_context
- @backend: ww_skills GeneratorTool 描述符 + TOOLBOX(11) + get_tool；3 通用端点
  GET /skills/toolbox · POST .../skills/{tool_key}/generate(预览不写库,仅记账) ·
  POST .../ingest(复用 continuity 409 + partition_writes 白名单)；纯 context 派发
- @frontend: 工具箱落地页 RSC + 声明驱动 GeneratorRunner + lib/toolbox 纯函数
  + LeftNav「工具箱」+ ⌘K nav-toolbox/action-gen-*；legacy 3 跳现页
- @qa: tests/test_t6_toolbox_e2e.py 5 用例真 pg + mock 网关零 token，无端点 bug
- P2 收尾: 限流→decisions.md 记延后(单用户原型)；noopener/Committable 早已修

守不变量 #2(只声明 tier)/#3(预览不写库,入库经验收 gate)/#9(缓存前缀)。无 DB 迁移。
门禁绿: 后端 ruff/format/mypy 195/alembic 无漂移/pytest 583；前端 lint/tsc/vitest 279/build。
spec 回写 PRODUCT_SPEC §7 + ARCHITECTURE §7.2 端点表。

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

apps/web/lib/command/palette.test.ts

@@ -17,6 +17,32 @@ describe("projectCommands", () => {
     expect(genChar?.kind).toBe("action");
     expect(genChar?.href).toBe("/projects/p1/codex?gen=character");
   });
+
+  it("always offers a 工具箱 nav command", () => {
+    const toolbox = projectCommands("p1").find((c) => c.id === "nav-toolbox");
+    expect(toolbox?.kind).toBe("navigate");
+    expect(toolbox?.href).toBe("/projects/p1/toolbox");
+  });
+
+  it("generates one action-gen-<key> per toolbox tool deep-linking with ?open", () => {
+    const cmds = projectCommands("p1", [
+      { key: "brainstorm", title: "脑洞生成器", genre: "玄幻" },
+      { key: "book-title", title: "书名生成器" },
+    ]);
+    const brainstorm = cmds.find((c) => c.id === "action-gen-brainstorm");
+    expect(brainstorm?.kind).toBe("action");
+    expect(brainstorm?.href).toBe("/projects/p1/toolbox?open=brainstorm");
+    expect(brainstorm?.title).toBe("脑洞生成器");
+    expect(brainstorm?.keywords).toContain("玄幻");
+    expect(cmds.find((c) => c.id === "action-gen-book-title")?.href).toBe(
+      "/projects/p1/toolbox?open=book-title",
+    );
+  });
+
+  it("emits no tool commands when none provided", () => {
+    const ids = projectCommands("p1").map((c) => c.id);
+    expect(ids.some((id) => id === "action-gen-brainstorm")).toBe(false);
+  });
 });
 
 describe("globalCommands", () => {