Automated daily sync of `ai-providers.json` from [models.dev](https://models.dev). This PR updates pricing, context windows, and model availability based on the latest data. New models meeting inclusion criteria (tool calling, pricing data, context limits) are added automatically. Deprecated models are detected based on cost-efficiency within the same model family. **Please review before merging** — verify no critical models were incorrectly deprecated. Co-authored-by: FelixMalfait <[email protected]>