Adds direct xiaomi token-plan API access alongside the existing
OpenRouter-routed xiaomi entries. ADDITIVE only — OpenRouter cleanup is
a separate follow-up.
Three new region providers:
- xiaomi-token-plan-ams (Amsterdam, default for plain `xiaomi`)
- xiaomi-token-plan-sgp (Singapore)
- xiaomi-token-plan-cn (China)
All use Anthropic Messages API. Env-var resolution: XIAOMI_API_KEY →
XIAOMI_TOKEN_PLAN_API_KEY → MIMO_API_KEY (in that fallback order).
Three xiaomi MiMo models registered under each direct provider:
- mimo-v2-flash (256k ctx, 64k output, text-only, reasoning)
- mimo-v2-omni (256k ctx, 128k output, text+image, reasoning)
- mimo-v2-pro (1M ctx, 128k output, text-only, reasoning)
Same model literals × 4 provider keys, different baseUrls per region.
Test count assertion bumped 22 → 26 providers.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>