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

KnowledgeChunk catalog (000028) · Loop continuous.
2026-08-08 03:14:17 +08:00
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+# Backend Design: ECR-027 KnowledgeChunk
+
+| ID | BD-2026-027 |
+| Status | Approved |
+| Coding | Loop authorized |
+| Level | L2 |
+| Migration | YES 000028 |
+
+## Backend Change Boundary
+
+```text
+Domain: KnowledgeChunk (read)
+App: AdminHandler → admin.Service → AdminRepo
+API: GET /admin/ai/knowledge-chunks; GET /admin/ai/knowledge-chunks/{id}
+Permission: admin.ai_config.read
+Migration: 000028
+```
+
+## Out of boundary
+
+Embedding · 上传切块 · 运行时 RAG 接线 · UGC · 真支付
+
+Rollback: down migration + remove routes/UI