[octo-patch]

Reason: Instatic needs a first-class MiniMax connection with current ordinary model choices and protocol-correct tool continuation. New MiniMax credentials should prefer MiniMax-M3.1-Flash, then MiniMax-M3, while existing saved model IDs remain usable.

Summary

• Add MiniMax provider connections for global and China OpenAI-compatible and Anthropic-compatible endpoints, requiring an API key and using each region's live model catalogue.
• Offer Flash first and M3 second for direct connections. Update context/capability metadata and standard short-context prices. OpenRouter offers the verified minimax/minimax-m3.1-flash:free route before minimax/minimax-m3, retaining gateway prices/context and saved legacy model lookup. Other provider and media entries are preserved.
• Preserve MiniMax reasoning during tool continuation: Chat Completions replays reasoning_content; Messages replays thinking blocks and signatures in their original order. Shared adapters enable this only for the direct MiniMax provider.
• Keep protocol defaults by omitting thinking/effort overrides: Flash defaults to adaptive/max; M3 defaults to adaptive on Chat Completions and disabled on Messages. Instatic does not expose explicit thinking/effort controls. Existing persisted histories are unchanged; they do not store reasoning blocks.
• Update the provider label, connection test, and user documentation. Direct static prices describe the standard short-context tier; the existing pricing shape does not represent M3 long-context or priority multipliers.

Sources: OpenAI-compatible API, Messages API, pricing, and live OpenRouter catalogue, inspected 2026-10-20.

Verification

• bun run build — deferred under the shared runner's disk-resource pause; fewer than 110 GiB available.
• bun test — full suite not run. Focused HTTP-boundary/regression tests could not load missing happy-dom. A small dependency setup at repository lockfile versions waited on the shared light-install lock; the initial 180-second wait expired and a longer wait was canceled for handoff after over 20 minutes without install output. Focused execution needs a retry.
• bun run lint — full dependency setup is resource-paused.
• Docker/deployment check, if relevant — not applicable.
• Changed TypeScript syntax transpilation and git diff --check pass. Bun 1.3.14 is available locally (manifest supports >=1.2.4; CI pins 1.3.11).
• Added offline HTTP-boundary tests for four regional/protocol endpoints, discovery-to-request default selection, saved/custom IDs, omitted thinking/effort/service-tier fields, tools, reasoning continuation, prior text history, images, and gateway catalogue policy. No paid inference was performed.
• Exact head dbda218b8baaa36e5422127cd055b49b286e3c65: both Socket checks passed. Repository CI is action_required awaiting maintainer approval; its lint/build/test jobs have not run.

Checklist

• Tests cover behavior changes.
• Docs were updated when behavior, config, deployment, or public surfaces changed.
• No compatibility shim was added for old pre-release behavior.
• No secrets, local databases, uploads, or generated artifacts are included.

[octo-patch]

Updated this PR with MiniMax global/China endpoint presets for both supported wire protocols, required API-key handling, current M3/M2.7 metadata, and protocol-specific model discovery and streaming coverage. Focused tests, TypeScript checking, ESLint, and the production build pass; the two unrelated full-suite failures reproduce on the pre-change PR head.