feat(aihubmix): add muse-spark-1.1

[0genlab]

Adds the missing AIHubMix route muse-spark-1.1, inheriting lab metadata from meta/muse-spark-1.1 and keeping only host-specific pricing, controls, and actual overrides.

Sources:

• AIHubMix public catalog, retrieved 2026-09-20; prices are USD per million tokens.
• Model/control documentation.
• Existing baseline: providers/meta/models/muse-spark-1.1.toml.
• AIHubMix request field documentation.

Reasoning controls: [{"type":"effort","values":["minimal","low","medium","high","xhigh"]}]. AIHubMix is a multi-lab relay; exact request fields are recorded in the leading TOML comments.

The effort set matches the first-party Meta entry and OpenRouter. No reasoning-token budget is declared.

Validation: bun validate passes on this branch. Controls were checked against the published catalog and existing model/provider entries; no inference-effect claim is made from HTTP acceptance.

[github-actions]

Action items

• [low] [possible mistake] providers/aihubmix/models/muse-spark-1.1.toml:32 - Check: After base_model, [modalities] may only be authored when this host’s supported inputs actually differ from the lab. Why: Lab models/meta/muse-spark-1.1 input is text/image/pdf/video with no audio. This override adds audio while the PR body maps citations to pricing and effort, not modality support, so the expansion is unverified. Action: Confirm AIHubMix accepts audio for muse-spark-1.1 (catalog/API) and note that in the leading comment or PR body, or remove [modalities] and inherit the lab set.

[github-actions]

No actionable findings.