-- Stop hardcoding agent model_name in migrations.
--
-- Migration 029 previously forced model_name='qwen3.5:9b-fast' on every
-- deploy, overwriting per-environment model configuration.  That migration
-- has been fixed to only sync system_prompt (not model_name).
--
-- This migration updates agents still on the old ollama provider/model
-- to use vllm with the default VLLM model.  Agents already configured
-- with a different model (e.g. via the API) are left untouched.

UPDATE ai_agents
SET model_provider = 'vllm',
    model_name     = 'AxionML/Qwen3.5-9B-NVFP4',
    updated_at     = NOW()
WHERE model_name IN ('qwen3.5:9b-fast', 'qwen3.5:9b')
  AND source = 'system';