Adds OpenRouter's free "Ox Alpha" stealth reasoning model
(stealth/ox-alpha) to the OpenRouter fallback snapshot, plus the
provider-agnostic metadata it needs:
- OPENROUTER_MODELS: free-tier entry (1M ctx)
- DEFAULT_CONTEXT_LENGTHS: ox-alpha -> 1,048,576 (verified against
OpenRouter live /api/v1/models; without this the slug fell through
to no match)
- reasoning_timeouts.py: 300s stale floor for ox-alpha and the
OpenCode Zen twin slug x-preview-f-free (reasoning model,
long-horizon agentic work per its model card)
- model-catalog.json regenerated
Pricing snapshot skipped: openrouter bills via official_models_api
(live pricing; model is free anyway).
c01cd26f95