feat: Add support for Chinese AI providers (GLM, Qwen, Kimi, MiniMax, Qiniu)

* feat: Add support for Chinese AI providers (GLM, Qwen, Kimi, MiniMax, Qiniu)

- Add minimax, glm, qwen, qiniu, kimi to ProviderName type
- Add provider configurations to PROVIDER_INFO with default base URLs
- Add suggested models for MiniMax in SUGGESTED_MODELS
- Add minimax/glm/qwen/qiniu/kimi cases to getAIModel using OpenAI-compatible SDK
- Update ALLOWED_CLIENT_PROVIDERS and error messages
- Add environment variable examples to env.example

Fixes: MiniMax API compatibility issue (invalid chat setting 2013)

* fix: Add missing providers to PROVIDER_ENV_VARS type

* fix: Handle null case in PROVIDER_ENV_VARS for new providers

* fix: Add minimax/glm/qwen/kimi/qiniu support to validate-model API

- Add getDefaultBaseUrl helper function
- Add validation cases for new providers in validate-model route

* fix: Add new providers to buildProviderOptions switch case

* fix: Merge multiple system messages into one for minimax/glm/qwen/kimi/qiniu

MiniMax API doesn't support multiple system messages.
This fix combines them into a single message for Chinese providers.

* fix: Handle null provider in system message check

* debug: Add logging for allMessages count

* fix: Use effective provider (including env var fallback) for isSingleSystemProvider check

* fix: apply biome formatting (line-wrapping)

* docs: add Chinese AI providers documentation (MiniMax, GLM, Qwen, Kimi, Qiniu)

- Add i18n translations for new providers in all language dictionaries
- Add provider configuration documentation in en/cn/ja docs

* fix: 改进 PR #722 的代码审查反馈

1. 删除重复的 getDefaultBaseUrl 函数，改用 model-config.ts 的 PROVIDER_INFO
2. validate-model 路由改用 AI SDK 的 createOpenAI + generateText
3. 修复 resolveBaseURL 回退逻辑，传入 PROVIDER_INFO 的 defaultBaseUrl
4. 删除无用的 .bak 备份文件

Co-authored-by: Shinyi <shinyi@openclaw.ai>

* fix: 修正中国 AI provider 端点配置

- qiniu: api.qiniucdn.com → api.qnaigc.com
- qwen: dashscope.aliyun.com → dashscope.aliyuncs.com
- 更新 env.example 文档链接

Co-authored-by: Shinyi <shinyi@openclaw.ai>

* feat: MiniMax 使用 Anthropic 兼容 API

- MiniMax 改用 createAnthropic (而非 createOpenAI)
- 支持 api.minimax.io/anthropic 和 api.minimaxi.com/anthropic
- 合并多个 system 消息为单个 (MiniMax/GLM/Qwen/Kimi/Qiniu)
- 更新默认模型为 MiniMax-M2.5 系列
- 支持 MINIMAX_BASE_URL 环境变量配置

Co-authored-by: Shinyi <shinyi@openclaw.ai>

* docs: 更新 MiniMax 文档

- 添加 Anthropic 兼容 API 说明
- 更新默认模型为 MiniMax-M2.5
- 添加国际版/中国大陆版配置示例
- 更新 env.example 注释

Co-authored-by: Shinyi <shinyi@openclaw.ai>

* fix: 完善 MiniMax 双端点支持及问题修复

- 支持 MiniMax Anthropic 兼容端点和 OpenAI 兼容端点自动切换
- 修正默认端点为 api.minimaxi.com (中国大陆可用)
- 修复端点路径缺少 /v1 的问题
- 添加前端 MiniMax logo 映射
- 移除调试日志
- 修正 env.example 默认配置

* chore: clean backup artifacts and align biome formatting

* fix: resolve effectiveProvider bug, deduplicate MiniMax URL logic, fix docs

- Fix critical bug: effectiveProvider was empty during auto-detection,
  causing multi-system-message to be sent to MiniMax (which rejects it).
  Now uses resolved provider from getAIModel instead of re-deriving it.
- Extract normalizeMiniMaxBaseURL() shared helper to eliminate duplication
  between ai-providers.ts and validate-model/route.ts
- Add guard for undefined MiniMax baseURL to prevent hitting api.anthropic.com
- Fix docs: mark China mainland URL as default (matches code behavior)
- Restructure minimax/glm/qwen/kimi/qiniu validation to use shared pattern

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* feat: document MiniMax dual API formats in docs and UI

- Add hint below Base URL input when MiniMax is selected, explaining
  Anthropic-compatible (/anthropic) vs OpenAI-compatible (/v1) endpoints
- Update all 3 ai-providers docs (en/cn/ja) to list all 4 endpoint options
  (China/International × Anthropic/OpenAI)
- Add i18n translations for the hint in all 4 locales

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* refactor: deduplicate PROVIDER_LOGO_MAP, remove unnecessary optional chaining

- Extract PROVIDER_LOGO_MAP to lib/types/model-config.ts (was duplicated
  in model-config-dialog.tsx and model-selector.tsx)
- Remove unnecessary ?. on PROVIDER_INFO.minimax (it's a full Record)

---------

Co-authored-by: msga-oc <msga-oc@gitea.misakiga.top>
Co-authored-by: Shinyi <shinyi@openclaw.ai>
Co-authored-by: dayuan.jiang <jdy.toh@gmail.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

env.example

@@ -142,3 +142,28 @@ AI_MODEL=global.anthropic.claude-sonnet-4-5-20250929-v1:0
 # This switch allows self-hosted users to provide custom messages in response to a 429 code,
 # in messageTokenSelfHosted, messageApiSelfHosted, and tipSelfHosted translation strings.
 # NEXT_PUBLIC_SELFHOSTED=true
+
+# Minimax Configuration (Optional)
+# Get your API key from: https://platform.minimaxi.com/docs/guides/models-intro
+# MINIMAX_API_KEY=your_minimax_api_key
+# MINIMAX_BASE_URL=https://api.minimaxi.com/anthropic  # Optional, default (China mainland)
+
+# GLM Configuration (Optional)
+# Get your API key from: https://open.bigmodel.cn/dev/api
+# GLM_API_KEY=your_glm_api_key
+# GLM_BASE_URL=https://open.bigmodel.cn/api/paas/v4  # Optional, default
+
+# Qwen Configuration (Optional)
+# Get your API key from: https://www.aliyun.com/product/bailian
+# QWEN_API_KEY=your_qwen_api_key
+# QWEN_BASE_URL=https://dashscope.aliyuncs.com/compatible-mode/v1  # Optional, default
+
+# Kimi Configuration (Optional)
+# Get your API key from: https://platform.moonshot.cn/
+# KIMI_API_KEY=your_kimi_api_key
+# KIMI_BASE_URL=https://api.moonshot.cn/v1  # Optional, default
+
+# Qiniu Configuration (Optional)
+# Get your API key from: https://www.qiniu.com/ai/models
+# QINIU_API_KEY=your_qiniu_api_key
+# QINIU_BASE_URL=https://api.qnaigc.com/v1  # Optional, default