feat: add citation sources for fetch_url tool results
URL fetches now produce clickable citation sources in the UI, matching
the existing behavior of search_web and knowledge file tools. When a
model calls fetch_url during native tool calling, the fetched URL
appears as a citable source with a content preview, giving users full
transparency into what pages the model referenced.
When models reference functions (via filterIds/actionIds) that no longer
exist in the database, the /api/models endpoint crashes with a 500 error,
preventing the UI from loading chats entirely. This can happen after
upgrades when built-in functions are removed or when user-created
functions are deleted while still referenced by models.
Instead of raising an exception, log at INFO level and skip the missing
function so the rest of the models load successfully.
Fixes#21464https://claude.ai/code/session_015JRM7m2bNeZPBBmV2Gv4Mj
Co-authored-by: Claude <noreply@anthropic.com>
Ensure chat_id is reliably passed to function pipelines/manifolds during internal task invocations (web search query generation, RAG query generation, image prompt generation).
This allows stateful functions to maintain per-chat state without fragmentation, as they will now receive a consistent chat_id for all chat-scoped invocations including internal tasks.
Backend changes:
- Pass chat_id in generate_queries call for web search
- Pass chat_id in generate_queries call for RAG/retrieval
- Pass chat_id in generate_image_prompt call
Frontend changes:
- Add optional chat_id parameter to generateQueries API function
- Add optional chat_id parameter to generateAutoCompletion API function
Fixes#20563
