Follow-up to the Venice provider PR. Wire api.venice.ai into the three
host allowlists so Venice behaves like the other paid OpenAI-compatible
clouds:
- agent_loop: add api.venice.ai to _API_HOSTS so the agent sends native
OpenAI tool-call schemas (Venice supports function calling) instead of
degrading to fenced-block parsing.
- teacher_escalation: add api.venice.ai to _SOTA_HOSTS so the escalation
loop stays OFF for Venice (it's a paid top-tier API; no need to add
teacher-model latency).
- webhook_routes: add venice to KNOWN_PROVIDERS so the sync chat webhook
can auto-resolve base_url from provider=venice.
Tests: tests/test_venice_hosts.py pins tool-host matching + SOTA
classification for Venice; py_compile on touched modules.
Co-authored-by: Cursor <cursoragent@cursor.com>