Gestire risposta quando non c‘e’ contesto

[Whyle]

`[ERROR] Error from LLM: {
2025-05-15 23:52:10 detail: "Error getting context: No context found for question: 'ciao'"
2025-05-15 23:52:10 }
2025-05-15 23:52:10 Error: Error getting context: No context found for question: 'ciao'
2025-05-15 23:52:10 at POST (file:///app/.svelte-kit/output/server/entries/endpoints/api/stream_chat/_server.ts.js:26:11)
2025-05-15 23:52:10 at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
2025-05-15 23:52:10 at async render_endpoint (file:///app/.svelte-kit/output/server/index.js:259:22)
2025-05-15 23:52:10 at async resolve2 (file:///app/.svelte-kit/output/server/index.js:3131:22)
2025-05-15 23:52:10 at async respond (file:///app/.svelte-kit/output/server/index.js:3016:22)
2025-05-15 23:52:10 at async file:///app/node_modules/@sveltejs/kit/src/exports/vite/preview/index.js:197:5

`

LLM-API/app/services/llm_response_service.py

Line 37 in aa7b853

raise ValueError(f"No context found for question: '{question}'")

fornire un risposta anche se non ce nessun documento di contesto