feat: add MiniMax as first-class LLM provider

[octo-patch]

Summary

Add MiniMax AI as a dedicated model provider for the Aide VSCode extension, alongside the existing OpenAI, Anthropic, and Azure OpenAI providers.

Changes

• New provider: MiniMaxModelProvider extending BaseModelProvider via ChatOpenAI from @langchain/openai
  • Temperature clamping to (0.0, 1.0] as required by MiniMax API
  • Clearing unsupported OpenAI-specific parameters (frequencyPenalty, n, presencePenalty, topP)
  • Default base URL fallback to https://api.minimax.io/v1
• URL routing: Added minimax to ModelUrlType union and URL parsing regex in parse-model-base-url.ts
• Provider registration: Added MiniMaxModelProvider to the provider map in helpers.ts
• Documentation: Added MiniMax usage guide pages for both English and Chinese
• Sidebar: Added MiniMax navigation entries in VitePress config for both locales
• Tests: 30 unit tests covering URL parsing, temperature clamping, provider mapping, model validation, and configuration format

Supported Models

Model	Context Window	Description
MiniMax-M2.7	1M tokens	Latest flagship model
MiniMax-M2.7-highspeed	1M tokens	Faster variant
MiniMax-M2.5	204K tokens	Previous generation
MiniMax-M2.5-highspeed	204K tokens	Faster variant

Usage

Configure in VSCode settings:

{
  "aide.openaiBaseUrl": "minimax@https://api.minimax.io/v1",
  "aide.openaiKey": "your-minimax-api-key",
  "aide.openaiModel": "MiniMax-M2.7"
}

The minimax@ prefix ensures the extension handles MiniMax-specific configurations (temperature constraints, parameter compatibility) correctly.

Files Changed (10 files, 413 additions)

File	Description
src/extension/ai/model-providers/minimax.ts	New MiniMax provider
src/extension/ai/parse-model-base-url.ts	Add minimax to URL type union and regex
src/extension/ai/helpers.ts	Register MiniMax in provider map
website/en/guide/use-another-llm/minimax.md	English documentation
website/zh/guide/use-another-llm/minimax.md	Chinese documentation
website/.vitepress/config/en.ts	English sidebar entry
website/.vitepress/config/zh.ts	Chinese sidebar entry
test/minimax.test.ts	30 unit tests

Test Plan

• All 30 new unit tests pass (npx vitest run)
• Existing tests remain passing (31 total)
• ESLint passes with no errors
• Manual testing with MiniMax API key and M2.7 model