feat(ECR-027): AICoreConfig KnowledgeChunk 只读并 Closed

KnowledgeChunk catalog (000028) · Loop continuous.

.ai/product/feature-spec/README.md

@@ -36,6 +36,7 @@
 | [ops-banner.md](ops-banner.md) | OpsCMS Banner | §7 | `admin-h5` `/cms` · `GET /admin/cms/banners*` | Ops-D · **ECR-024 Closed** |
 | [ops-feed-slot.md](ops-feed-slot.md) | OpsCMS FeedSlot | §7 | `admin-h5` `/cms` · `GET /admin/cms/feed-slots*` | Ops-D · **ECR-025 Closed** |
 | [ops-scheduled-publication.md](ops-scheduled-publication.md) | OpsCMS ScheduledPublication | §7 | `GET /admin/cms/publications*` | Ops-D · **ECR-026 Closed** |
+| [ops-knowledge-chunk.md](ops-knowledge-chunk.md) | AICoreConfig KnowledgeChunk | §7 | `GET /admin/ai/knowledge-chunks*` | Ops-D · **ECR-027 Closed** |
 
 新功能：复制 `_TEMPLATE.md` → 填满 → 在本表登记 → 再编码。
 

.ai/product/feature-spec/ops-knowledge-chunk.md

@@ -0,0 +1,41 @@
+# Feature Spec: AICoreConfig · KnowledgeChunk（Ops · ECR-027）
+
+> Status: `Active`（Loop continuous · **ECR-027 Closed**）  
+> Parent: WAVE0-FROZEN · Predecessor: ECR-026 Closed  
+> Capability: `AICoreConfig` · BC: `Ask_Ops`  
+> 授权：`docs/WAVE0/LOOP_AUTHORIZATION.md`
+
+## Non-goals
+
+Embedding · 上传切块 · 运行时 RAG 接线 · UGC · 真支付
+
+## L2 Domain
+
+| 概念 | 语义 |
+|------|------|
+| `KnowledgeChunk` | 本切片只读目录；code 唯一（若适用） |
+
+## L3 API
+
+| Method | Path | 权限 | 语义 |
+|--------|------|------|------|
+| GET | `/admin/ai/knowledge-chunks` | `admin.ai_config.read` | 只读 |
+| GET | `/admin/ai/knowledge-chunks/{id}` | `admin.ai_config.read` | 只读 |
+
+## Migration
+
+`000028`：表 + 种子（若有）（权限复用）
+
+## L4 AC
+
+| ID | Then |
+|----|------|
+| AC-F-01 | list 含种子或空列表合法 |
+| AC-F-02 | 已知 id get 200 |
+| AC-F-03 | 未知 id → 404 |
+| AC-S-01 | 无 Admin → 401 |
+| AC-S-02 | 无权限 → 403 |
+| AC-P-01 | list < 500ms |
+| AC-O-01 | N/A 只读 |
+
+contract_diff: `docs/CONTRACT_DIFF/ECR-027.yaml`