feat(graph): owner_id 寫入鏈必經(根治無主資料)——配合 base owner-mandatory(D28)

- kbdb-client requireOwner 守衛:漏 owner 插件端即 throw,不再靜默送 owner:''
- owner 一路 thread:persistNodes/ingestEnvelope/entity-crud/triplet-crud 全必填
- 病灶修:POST /triplets/ingest 原本沒傳 owner→加 owner_id query+400
- 寫入 route 缺 owner→400;vitest 23→27
- 註:gloss-bridge 分支的 backfill/gloss-entry 另需套 owner 必填(附說明),不跨支疊改

tests/entity.test.ts

@@ -5,17 +5,29 @@ import { normalizeEntity } from '../src/actions/entity-normalize';
 import { mockClient } from './mock-client';
 
 describe('entity-crud', () => {
-  it('建立後可 exact 查回（大小寫不敏感）', async () => {
+  it('建立後可 exact 查回（大小寫不敏感），owner slot 帶真 owner', async () => {
     const c = mockClient();
-    await createEntity(c, 'InkStone');
-    const found = await findEntityByName(c, 'inkstone');
+    const ent = await createEntity(c, 'InkStone', 'leo');
+    const found = await findEntityByName(c, 'inkstone', 'leo');
     expect(found?.canonical).toBe('InkStone');
+    // owner 落底：record 掛在 leo 名下（非無主），用錯 owner 查不到。
+    const rec = await c.getRecord(ent.id);
+    expect(rec?.values.owner).toBe('leo');
+    expect(await findEntityByName(c, 'inkstone', 'someone-else')).toBeNull();
+  });
+
+  it('漏 owner → 插件端 fail（不寫出無主 entity）', async () => {
+    const c = mockClient();
+    await expect(
+      // @ts-expect-error 蓄意漏 owner：型別上 owner 必填，執行期也應 throw
+      createEntity(c, 'NoOwner'),
+    ).rejects.toThrow(/owner/i);
   });
 
   it('listEntities 列出', async () => {
     const c = mockClient();
-    await createEntity(c, 'A');
-    await createEntity(c, 'B');
+    await createEntity(c, 'A', 'leo');
+    await createEntity(c, 'B', 'leo');
     const all = await listEntities(c);
     expect(all.map((e) => e.canonical).sort()).toEqual(['A', 'B']);
   });
@@ -24,8 +36,8 @@ describe('entity-crud', () => {
 describe('normalizeEntity', () => {
   it('已存在回 canonical，不存在建新回原值', async () => {
     const c = mockClient();
-    await createEntity(c, 'InkStone');
-    expect(await normalizeEntity(c, 'INKSTONE')).toBe('InkStone');
-    expect(await normalizeEntity(c, '新公司')).toBe('新公司');
+    await createEntity(c, 'InkStone', 'leo');
+    expect(await normalizeEntity(c, 'INKSTONE', 'leo')).toBe('InkStone');
+    expect(await normalizeEntity(c, '新公司', 'leo')).toBe('新公司');
   });
 });