feat: Ai Proxy enhanced with SpringAI & Fallback & Proxy apikey

[fantasy-lotus]

fallback:
引入SpringAI 重构大模型API调用
通过SpringAI 抛出的 NonTransientAiException 进行降级逻辑，支持admin配置以及请求时配置
支持流式响应相关重构和降级

proxy apikey
支持namespace + selector级别的租户隔离代理apikey生成和管理
支持真实apikey一对多代理apikey，代理apikey仅绑定selectorid，可随时修改真实apikey

todo：

1. global fallback config
2. fast fail（when create client）
3. baseurl

[Copilot]

Pull Request Overview

This PR introduces an AI proxy API key mapping feature that allows administrators to create proxy API keys that map to real API keys, enabling secure API key management for AI services. The implementation includes a new enhanced AI proxy plugin with fallback support, retry mechanisms, and comprehensive data synchronization.

Key Changes:

• New AI Proxy API Key Management: Implements a system to map proxy keys to real API keys with admin UI and CRUD operations
• Enhanced AI Proxy Plugin: Replaces the original plugin with enhanced version supporting fallback configurations, retry logic, and proxy key authentication
• Data Synchronization Infrastructure: Adds new ConfigGroupEnum for AI_PROXY_API_KEY with websocket and HTTP sync support

Reviewed Changes

Copilot reviewed 68 out of 68 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
shenyu-common	Adds ProxyApiKeyData DTO and AI_PROXY_API_KEY config group enum
shenyu-admin	Implements full CRUD operations, mappers, services for proxy API key management
shenyu-plugin-ai-proxy-enhanced	New enhanced AI proxy plugin with fallback, retry, and proxy key support
shenyu-sync-data-center	Extends websocket and HTTP sync to handle AI proxy API key data
shenyu-spring-boot-starter	Updates configuration classes to include AI proxy API key subscribers
Database schemas	Adds proxy_api_key_mapping table and related UI permissions

Comments suppressed due to low confidence (4)

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[Aias00]

[Copilot]

Pull Request Overview

Copilot reviewed 69 out of 70 changed files in this pull request and generated 1 comment.

Comments suppressed due to low confidence (2)

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