fix: preserve knowledge base references

offline-backend-20260512/backend/CLAUDE.md

@@ -486,7 +486,8 @@ frontend can hide or show the entry consistently; `PUT` is admin-only and
 partially updates `reference_mode_enabled` and/or `cleanup_words`. The normal
 workspace input box, iframe chat toolbar, send context, right reference panel,
 and appearance settings all use this flag, while already locked citation
-threads and knowledge-base selections still render their references. Tests:
+threads and selected LLMWiki knowledge bases still render their source
+documents in the reference panel. Tests:
 `tests/test_prompt_prefix.py` and
 `frontend-web/src/pages/iframe-chat-mode-buttons.test.ts`.
 

offline-backend-20260512/backend/README.md

@@ -670,7 +670,9 @@ Reference-mode entry points are controlled by `citation_display` in
 `.deer-flow/system_settings.json`. `reference_mode_enabled` defaults to `false`;
 when disabled, the frontend hides the "参考文献" composer button in both the
 normal workspace and iframe chat, and hides the per-user RAG citation toggle
-from appearance settings. `GET /api/system-settings/citation-display` is
+from appearance settings. Conversations with selected LLMWiki knowledge bases
+still show their source documents in the reference panel even when the manual
+entry is hidden. `GET /api/system-settings/citation-display` is
 readable by logged-in users so the UI can decide whether to expose the entry;
 `PUT /api/system-settings/citation-display` is admin-only and supports partial
 updates for both `reference_mode_enabled` and `cleanup_words`.