feat(graceful-handoff): 2.0 — migrate to skills/ with disable-model-invocation [skip-docs]

Step 1 of v2.0 plan. Hard cut from commands/ to skills/ per Anthropic
recommendation for new plugins. Frontmatter sets disable-model-invocation:
true and pins model: claude-sonnet-4-6. Docs (README, CLAUDE.md, root
README) deferred to Step 9 per plan.

plugins/ultraplan-local/tests/lib/manifest-yaml.test.mjs

@@ -99,6 +99,34 @@ test('parseManifest — commit_message_pattern compiles via new RegExp', () => {
   assert.ok(!re.test('chore: not it'));
 });
 
+test('parseManifest — must_contain list-of-dicts (real-world template form)', () => {
+  const body = `### Step 1: Real
+- Manifest:
+  \`\`\`yaml
+  manifest:
+    expected_paths:
+      - a.json
+      - b.md
+    min_file_count: 2
+    commit_message_pattern: "^chore:"
+    bash_syntax_check: []
+    forbidden_paths:
+      - CHANGELOG.md
+    must_contain:
+      - path: a.json
+        pattern: '"version": "2\\.3\\.0"'
+      - path: b.md
+        pattern: "version-blue"
+  \`\`\`
+`;
+  const r = parseManifest(body);
+  assert.equal(r.valid, true, JSON.stringify(r.errors));
+  assert.equal(r.parsed.must_contain.length, 2);
+  assert.equal(r.parsed.must_contain[0].path, 'a.json');
+  assert.equal(r.parsed.must_contain[1].path, 'b.md');
+  assert.equal(r.parsed.forbidden_paths[0], 'CHANGELOG.md');
+});
+
 test('validateAllManifests — aggregates per-step issues', () => {
   const steps = [
     { n: 1, body: STEP_BODY_GOOD },