feat: 重构聊天时间线与附件上传交互

- 管理端和用户中心统一切换到 chatTime 时间线模型，按真实 assistant/tool 时序渲染

- 收紧工具气泡与 JSON 展示样式，保留同气泡内的工具状态更新

- 回形针直接触发文件选择，附件列表上移到输入框上方并补充共享 helper 测试

easyflow-ui-admin/packages/types/src/chat-time.ts

@@ -0,0 +1,96 @@
+type ChatTimeTimelineRole = 'assistant' | 'tool' | 'user';
+type ChatTimeToolStatus = 'TOOL_CALL' | 'TOOL_RESULT';
+type ChatTimeThinkingStatus = 'end' | 'thinking';
+
+interface ChatTimeTimelineItemBase {
+  created: number | string;
+  id: string;
+  loading?: boolean;
+  placement: 'end' | 'start';
+  role: ChatTimeTimelineRole;
+  senderName?: string;
+  typing?: boolean;
+}
+
+interface ChatTimeAssistantThinkingSegment {
+  content: string;
+  expanded: boolean;
+  id: string;
+  status: ChatTimeThinkingStatus;
+  type: 'thinking';
+}
+
+interface ChatTimeAssistantTextSegment {
+  content: string;
+  id: string;
+  type: 'text';
+}
+
+type ChatTimeAssistantSegment =
+  | ChatTimeAssistantTextSegment
+  | ChatTimeAssistantThinkingSegment;
+
+interface ChatTimeAssistantItem extends ChatTimeTimelineItemBase {
+  content: string;
+  role: 'assistant';
+  segments: ChatTimeAssistantSegment[];
+}
+
+interface ChatTimeToolItem extends ChatTimeTimelineItemBase {
+  arguments?: string;
+  content: string;
+  name: string;
+  result?: string;
+  role: 'tool';
+  status: ChatTimeToolStatus;
+  toolCallId: string;
+}
+
+interface ChatTimeUserItem extends ChatTimeTimelineItemBase {
+  content: string;
+  role: 'user';
+}
+
+type ChatTimeTimelineItem =
+  | ChatTimeAssistantItem
+  | ChatTimeToolItem
+  | ChatTimeUserItem;
+
+interface ChatTimeHistoryRecord {
+  chains?: Array<Record<string, any>>;
+  content?: string;
+  contentPayload?: null | Record<string, any>;
+  contentText?: string;
+  created?: number | string;
+  id?: number | string;
+  loading?: boolean;
+  placement?: 'end' | 'start';
+  role?: string;
+  senderName?: string;
+  senderRole?: string;
+  typing?: boolean;
+}
+
+interface ChatTimeToolMutationPayload {
+  created?: number | string;
+  name?: string;
+  result?: any;
+  toolCallId?: string;
+  value?: any;
+}
+
+export type {
+  ChatTimeAssistantItem,
+  ChatTimeAssistantSegment,
+  ChatTimeAssistantTextSegment,
+  ChatTimeAssistantThinkingSegment,
+  ChatTimeHistoryRecord,
+  ChatTimeThinkingStatus,
+  ChatTimeTimelineItem,
+  ChatTimeTimelineItemBase,
+  ChatTimeTimelineRole,
+  ChatTimeToolItem,
+  ChatTimeToolMutationPayload,
+  ChatTimeToolStatus,
+  ChatTimeUserItem,
+};

easyflow-ui-admin/packages/types/src/index.ts

@@ -1,4 +1,5 @@
 export type * from './api';
 export type * from './bot';
+export type * from './chat-time';
 export type * from './user';
 export type * from '@easyflow-core/typings';