[SaladDay]

We're the MiniMax team. This renames the M3.1 model id from MiniMax-M3.1-Flash-Preview to the official id MiniMax-M3.1-Flash.

Changes

• Default text model, mmx agent setup (all supported agents), README/SDK/skill docs, and tests now use MiniMax-M3.1-Flash.
• User-facing text updated accordingly (e.g. "MiniMax M3.1 Flash").

Verification

• bun run typecheck, bun run lint, and bun test pass.
• Against the CN endpoint, MiniMax-M3.1-Flash returns 200 on /v1/chat/completions, /v1/responses, and /anthropic.
• With the built CLI, mmx agent setup for Claude Code, Codex, Grok, OpenCode, Hermes, Pi, and Oh my Pi writes configs containing only MiniMax-M3.1-Flash and MiniMax-M3; claude -p and mmx text chat (default model) both respond normally.

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