refactor: 将客服后端重构为宿主可嵌入模块

- 注入数据库、运行时配置、统一响应、文件存储和平台 AI 能力，补充业务读写工具与客户快捷操作契约。

- 移除模块内重复的组织、客户、工单、标签、技能、旧工作流、MCP 和迁移实现，将身份权限与业务主体交由宿主管理。

- 使用 libSQL 重构向量存储，并完善图片消息、访客身份、排队调度、企业微信和支持聊天页面。

- 统一 HTTP、DTO 与 WebSocket 的 snake_case 协议，补齐模块初始化、业务动作和公共载荷等回归测试。

internal/ai/runtime/reply_interrupt_service.go

@@ -32,12 +32,11 @@ func (s *replyInterruptService) ResumePendingInterrupt(ctx context.Context, owne
 			summary = expiredInterruptSummary()
 			replyCtx.setSummary(summary)
 			replyMessage, expireErr := owner.commit.CommitAIReply(replyCommitInput{
-				Conversation:  replyCtx.Conversation,
-				Message:       replyCtx.Message,
-				AIAgent:       replyCtx.AIAgent,
-				ReplyText:     summary.ReplyText,
-				ClientPrefix:  "ai_interrupt_expired",
-				WorkflowRunID: summary.WorkflowRunID,
+				Conversation: replyCtx.Conversation,
+				Message:      replyCtx.Message,
+				AIAgent:      replyCtx.AIAgent,
+				ReplyText:    summary.ReplyText,
+				ClientPrefix: "ai_interrupt_expired",
 			})
 			if expireErr != nil {
 				return expireErr
@@ -58,12 +57,11 @@ func (s *replyInterruptService) ResumePendingInterrupt(ctx context.Context, owne
 	}
 	if summary != nil && strings.TrimSpace(summary.ReplyText) != "" {
 		replyMessage, err := owner.commit.CommitAIReply(replyCommitInput{
-			Conversation:  replyCtx.Conversation,
-			Message:       replyCtx.Message,
-			AIAgent:       replyCtx.AIAgent,
-			ReplyText:     summary.ReplyText,
-			ClientPrefix:  "ai_resume",
-			WorkflowRunID: summary.WorkflowRunID,
+			Conversation: replyCtx.Conversation,
+			Message:      replyCtx.Message,
+			AIAgent:      replyCtx.AIAgent,
+			ReplyText:    summary.ReplyText,
+			ClientPrefix: "ai_resume",
 		})
 		if err != nil {
 			return err
@@ -91,12 +89,11 @@ func (s *replyInterruptService) HandleInterruptedSummary(owner *aiReplyService,
 	pending = svc.ConversationInterruptService.GetByCheckPointID(summary.CheckPointID)
 	replyText := resolveInterruptPrompt(summary)
 	replyMessage, err := owner.commit.CommitAIReply(replyCommitInput{
-		Conversation:  replyCtx.Conversation,
-		Message:       replyCtx.Message,
-		AIAgent:       replyCtx.AIAgent,
-		ReplyText:     replyText,
-		ClientPrefix:  "ai_interrupt",
-		WorkflowRunID: summary.WorkflowRunID,
+		Conversation: replyCtx.Conversation,
+		Message:      replyCtx.Message,
+		AIAgent:      replyCtx.AIAgent,
+		ReplyText:    replyText,
+		ClientPrefix: "ai_interrupt",
 	})
 	if err != nil {
 		return err
@@ -113,12 +110,11 @@ func (s *replyInterruptService) HandleInterruptedResume(owner *aiReplyService, r
 	}
 	replyText := resolveInterruptPrompt(summary)
 	replyMessage, err := owner.commit.CommitAIReply(replyCommitInput{
-		Conversation:  replyCtx.Conversation,
-		Message:       replyCtx.Message,
-		AIAgent:       replyCtx.AIAgent,
-		ReplyText:     replyText,
-		ClientPrefix:  "ai_interrupt_resume",
-		WorkflowRunID: summary.WorkflowRunID,
+		Conversation: replyCtx.Conversation,
+		Message:      replyCtx.Message,
+		AIAgent:      replyCtx.AIAgent,
+		ReplyText:    replyText,
+		ClientPrefix: "ai_interrupt_resume",
 	})
 	if err != nil {
 		return err