Load present shells from a skill-pack catalog and list leftover creation modules.

Design-flow now sees leftover catalog skills and aesthetics-card commitments; reply-format injects present-shells/, and world-simulator prompts add random-range plus a tighter module set.

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

tests/present-shell-catalog.test.ts

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+import { describe, expect, it } from "vitest";
+import {
+  formatPresentShellsForPrompt,
+  loadPresentShellCatalog,
+  parsePresentShellCatalog,
+} from "../src/skills/present-shell-catalog.js";
+
+const PACK = "dialogue/world-simulator";
+
+describe("present-shell catalog", () => {
+  it("parses catalog ids without hardcoding a count", () => {
+    const entries = parsePresentShellCatalog(`
+shells:
+  - id: prose
+    name: 纯散文
+  - id: extra_shell
+    name: 新壳
+`);
+    expect(entries.map((e) => e.id)).toEqual(["prose", "extra_shell"]);
+  });
+
+  it("loads intro and shell from each prompt.md", async () => {
+    const shells = await loadPresentShellCatalog(PACK);
+    expect(shells.length).toBeGreaterThan(0);
+    const ids = shells.map((s) => s.id);
+    expect(new Set(ids).size).toBe(ids.length);
+    for (const s of shells) {
+      expect(s.name).toBeTruthy();
+      expect(s.intro).toBeTruthy();
+      expect(s.shell).toContain(`id: ${s.id}`);
+    }
+  });
+
+  it("formats an injection block that lists loaded ids", async () => {
+    const shells = await loadPresentShellCatalog(PACK);
+    const block = formatPresentShellsForPrompt(shells);
+    expect(block).toContain("【可选呈现壳】");
+    expect(block).toContain("动态装载");
+    for (const s of shells) {
+      expect(block).toContain(`\`${s.id}\``);
+    }
+  });
+});