fix(t130 🔴🔴): PORTAL_TEMPLATE_SEEDS 補 triplet——新實例總圖不再永遠空

真兇（總管探針定罪）：seeds 只有 portal_user/portal_library，寫三元組回 400
'template not found: triplet' ⇒ 每個新用戶（含封測者）總圖必空。
geek6688 有是舊實例早期流程建過＝拿它驗會假綠（已記 mistakes）。
呼叫路徑已驗：daemon/libraries、admin/libraries、init/seed 皆會 ensurePortalTemplates（冪等）。
vitest 24/24 綠（總管親跑）。（實作＝子 CC；驗證+commit＝總管）

cypher-executor/tests/portal-admin.test.ts

@@ -66,7 +66,7 @@ function mockListByTemplate(template: string, records: { record_id: string; valu
 }
 
 function mockTemplatesExist() {
-  for (const name of ['portal_user', 'portal_library']) {
+  for (const name of ['portal_user', 'portal_library', 'triplet']) {
     fetchMock
       .get(KBDB)
       .intercept({ path: `/templates/${name}`, method: 'GET' })

cypher-executor/tests/portal-auth.test.ts

@@ -19,6 +19,7 @@
 import { SELF, env, fetchMock } from 'cloudflare:test';
 import { beforeAll, beforeEach, afterEach, describe, it, expect } from 'vitest';
 import { hashPassword, verifyPassword, PBKDF2_ITERATIONS } from '../src/lib/portal-auth';
+import { PORTAL_TEMPLATE_SEEDS } from '../src/lib/portal-seeds';
 
 const KBDB = 'https://kbdb.test';
 const NS = 'leo::portal'; // wrangler.test.toml CONSOLE_TENANT=leo → 子 namespace
@@ -73,7 +74,7 @@ function mockListByTemplate(template: string, records: { record_id: string; valu
 }
 
 function mockTemplatesExist() {
-  for (const name of ['portal_user', 'portal_library']) {
+  for (const name of ['portal_user', 'portal_library', 'triplet']) {
     fetchMock
       .get(KBDB)
       .intercept({ path: `/templates/${name}`, method: 'GET' })
@@ -414,3 +415,52 @@ describe('admin 端點 role 閘', () => {
     expect(res.status).toBe(404);
   });
 });
+
+// ═══════════════ t130 — triplet template seed ═══════════════
+
+describe('t130 — triplet template seed（PORTAL_TEMPLATE_SEEDS 補 triplet，ensurePortalTemplates 冪等）', () => {
+  it('PORTAL_TEMPLATE_SEEDS 含 triplet 且必要 slots 齊備（pure data）', () => {
+    const seed = PORTAL_TEMPLATE_SEEDS.find((s) => s.name === 'triplet');
+    expect(seed).toBeDefined();
+    for (const slot of ['subject', 'predicate', 'object', 'source_uri', 'status', 'library']) {
+      expect(seed!.slots).toContain(slot);
+    }
+  });
+
+  it('POST /init/seed — triplet 已存 → existing（冪等，不重建）', async () => {
+    for (const name of ['portal_user', 'portal_library', 'triplet']) {
+      fetchMock
+        .get(KBDB)
+        .intercept({ path: `/templates/${name}`, method: 'GET' })
+        .reply(200, { success: true, template: { id: `tpl-${name}`, name } });
+    }
+    const res = await SELF.fetch('http://localhost/init/seed', { method: 'POST' });
+    expect(res.status).toBe(200);
+    const data = (await res.json()) as { portal_templates: { created: string[]; existing: string[] } };
+    expect(data.portal_templates.existing).toContain('triplet');
+    expect(data.portal_templates.created).not.toContain('triplet');
+  });
+
+  it('POST /init/seed — triplet 缺 → 自動補建（新實例首次 seed）', async () => {
+    for (const name of ['portal_user', 'portal_library']) {
+      fetchMock
+        .get(KBDB)
+        .intercept({ path: `/templates/${name}`, method: 'GET' })
+        .reply(200, { success: true, template: { id: `tpl-${name}`, name } });
+    }
+    fetchMock
+      .get(KBDB)
+      .intercept({ path: '/templates/triplet', method: 'GET' })
+      .reply(404, { success: false, error: 'template not found: triplet' });
+    fetchMock
+      .get(KBDB)
+      .intercept({ path: '/templates', method: 'POST' })
+      .reply(200, { success: true, template: { id: 'tpl-triplet-new', name: 'triplet' } });
+
+    const res = await SELF.fetch('http://localhost/init/seed', { method: 'POST' });
+    expect(res.status).toBe(200);
+    const data = (await res.json()) as { portal_templates: { created: string[]; existing: string[] } };
+    expect(data.portal_templates.created).toContain('triplet');
+    expect(data.portal_templates.existing).not.toContain('triplet');
+  });
+});