重构世界模拟器为模块化配方架构，完善创作编排、会话运行时与 Web UI，并清理过时技能。

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/book-store.test.ts

@@ -17,4 +17,31 @@ describe("book store", () => {
     expect(getBook(book.id)?.title).toBe("测试之书");
     expect(listBooks().some((b) => b.id === book.id)).toBe(true);
   });
+
+  it("duplicates book with session data", async () => {
+    const { createBook, duplicateBook, getBook, listBooks } = await import("../src/book/store.js");
+    const { saveBookSession } = await import("../src/book/session-store.js");
+    const source = createBook({ title: "源作品" });
+    saveBookSession({
+      version: 1,
+      sessionId: "sess-1",
+      bookId: source.id,
+      runtimeSession: {
+        id: "sess-1",
+        phase: "idle",
+        presetId: "default",
+        slots: {},
+        artifacts: [],
+        history: [],
+      },
+      blackboardItems: [],
+      messages: [],
+      savedAt: new Date().toISOString(),
+    });
+    const copy = duplicateBook(source.id, "备份作品");
+    expect(copy.id).not.toBe(source.id);
+    expect(copy.title).toBe("备份作品");
+    expect(listBooks().some((b) => b.id === copy.id)).toBe(true);
+    expect(getBook(copy.id)?.title).toBe("备份作品");
+  });
 });