disclosure-bureau/web/app/api/sessions/[id]
guto 9889308bf4 fix chat: force synthesis pass + fix ambiguous-column trigger
Two bugs combined to make the chat reply with only cards and no prose:

1. SQL trigger rollup_session_stats was failing with "column reference
   total_cost_usd is ambiguous" because the UPDATE on public.profiles had
   a FROM public.chat_sessions clause and both tables expose that column.
   Persistence of every user message died at this point — sessions were
   created in the DB but had message_count=0 forever. Applied SQL fix
   that qualifies columns with p./s. aliases (production DB updated;
   ALTER FUNCTION run live, not yet codified in a migration file).

2. The free-tier model (nemotron-3-super:free) spent all 5 tool-loop
   turns on hybrid_search calls and never wrote any prose, returning
   content_len=0. Added a forced-synthesis pass in openrouter.ts: when
   the loop exits with empty assembledText but the model did call tools,
   we send ONE final turn with tools omitted from the request payload
   and a user message instructing the model to answer in 3-8 sentences
   citing chunks. openrouterStreamCall now accepts a `withTools` opt
   so the synthesis call can disable tool calling entirely.

Verified end-to-end with the actual user query "O que os astronautas
viram? Quem foi que viu?" on /d/nasa-uap-d6-apollo-17-...:
- content_len: 0 → 947 chars (real synthesis citing Schmitt)
- artifacts: 44 preserved
- assistant message persisted with tool_calls + citations columns
2026-05-18 15:39:46 -03:00
..
messages fix chat: force synthesis pass + fix ambiguous-column trigger 2026-05-18 15:39:46 -03:00
route.ts baseline: Disclosure Bureau pipeline + Next.js UI + Supabase stack 2026-05-17 22:44:36 -03:00