Update Minimax to 2.7

[ymuuuu]

Summary

• Update MiniMax provider config from MiniMax-M2.5 to MiniMax-M2.7 across all model tiers (opus, sonnet, haiku)
• Updates applied to src/providers/index.ts, src/tui/content/providers.ts, and src/tui/screens/ModelConfigScreen.tsx

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Updates the project’s MiniMax provider defaults to use the MiniMax-M2.7 model identifier, aligning CLI/TUI defaults and education content with the new MiniMax model version.

Changes:

• Update MiniMax default model env vars in provider templates from MiniMax-M2.5 to MiniMax-M2.7
• Update TUI provider education content to reference MiniMax-M2.7
• Update TUI model-mapping placeholders for MiniMax to MiniMax-M2.7

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/providers/index.ts	Updates MiniMax provider default model environment variables to MiniMax-M2.7.
src/tui/content/providers.ts	Updates MiniMax provider education “models” display values to MiniMax-M2.7.
src/tui/screens/ModelConfigScreen.tsx	Updates MiniMax model placeholders shown in the model configuration screen to MiniMax-M2.7.

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[Copilot]

Repository docs still reference the old MiniMax model name MiniMax-M2.5 (e.g., README.md around lines ~126/153, docs/README.md ~75, docs/features/mirror-claude.md ~16). Since this change updates the default model to MiniMax-M2.7, these docs will become outdated; please update them in the same PR (or add a follow-up) to keep user-facing instructions consistent.