[feat(ai)]: Redesign of Dubbo Admin AI Agent (#1343)

* [chore(ai)]optimize agent initialization, use genkit-v1.0.4

* [feat(ai/server)]implement gin web server with OpenAPI doc

* [chore(ai/server)]support with Anthropic SSE format

* [feat(ai)]add user-friendly feedback and summary of react

* [chore(ai)]merge branch ai with origin/ai

* [chore(ai)]optimize prompts and react flows

* [chore(ai)]decoupling chat and session & replace panic with error return

* [chore(ai)]sort and format imports

* [feat(ai)]introduce Pinecone RAG & Cohere Rerank utils

* [chore(ai)]optimize errors handle logic

* [chore(ai/server)]add mock session create function

* [refactor(ai)]optimize tool use, refactor propmts

* [chore(ai)]fix bugs in ReAct flows, optimize propmts

* [chore(ai)]optimize the startup logic, add README.md

* [chore(ai)]add content block support, optimize prompts

* [chore(ai)]implement session granularity chat history, optimize prompts

* [chore(ai)]optimize errors sending

* [refactor(ai)]refactor memory, add sliding window and turn memory

* [feat(ai)]add memory query tools to allow self memory retrieval

* [feat(ai)]add markdown data cleaner and RAG support, optimize propmts for RAG

* [feat(ai)]add support of usage statistics, optimize prompts, fix genkit bug

* [chore(ai)]optimize sse events sending and memory tool call

* [chore(ai)]optimize prompts and empty tool response handling

* [chore(ai/server)]update openapi doc

* feat: complete basic agent ui and interface integration (#1)

* feat: 完善agent基础页面以及接口对接

* feat: 完善agent ui

* docs: 修改文案

* fix: 修复请求头

* feat: 添加错误信息显示和重试功能

* feat: 优化消息滚动和错误处理逻辑

* feat: 完善agentui

* feat: 完善agentui

* fix(AgentDrawer): 修正 AI 思考状态更新逻辑

- 在 sendMessage 函数开始时立即设置 isAiThinking 状态
- 注释掉 message_start 事件中重复设置 isAiThinking 的代码
- 保持 AI 状态更新逻辑的一致性与及时性

* style(ui-vue3): 优化聊天及消息区域滚动条样式

- 为聊天区域滚动条添加细窄样式，适配Webkit与Firefox浏览器
- 优化消息内容区域滚动条视觉效果，统一颜色与圆角设计
- 调整代码块滚动条样式，提升整体页面一致性和美观度
- 采用hover效果增强用户交互体验

* refactor(ai-chat): 拆分AgentDrawer为多个子组件提升可维护性

- 抽离消息列表为MessageList组件，简化主组件代码
- 抽离消息项为MessageItem组件，负责单条消息展示逻辑
- 抽离输入区域为ChatInput组件，处理消息输入及相关事件
- 抽离会话历史为SessionHistoryModal组件，管理历史对话界面
- 抽离建议问题卡片为SuggestionCard组件，统一样式和交互
- 调整AgentDrawer组件，改用子组件替代原有内联结构
- 移除原有部分变量，使用子组件ref及prop进行状态管理
- 优化滚动到底部逻辑，委托给MessageList组件处理
- 通过事件和prop实现主组件与子组件间通信和功能调用

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Co-authored-by: LGgbond <1493170339@qq.com>