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/tools/helper.go

@@ -19,18 +19,24 @@ func ParseConfirmationDecision(value string) Decision {
 	if value == "" {
 		return ""
 	}
-	confirmWords := []string{"确认", "是", "好的", "可以", "ok", "yes", "继续", "同意"}
-	for _, item := range confirmWords {
-		if strings.Contains(value, item) {
-			return DecisionConfirm
-		}
+	cancelWords := []string{
+		"不确认", "取消", "不用", "不需要", "算了", "no", "cancel",
+		"不提交", "不要提交", "暂不提交", "不办理", "不要办理", "不执行", "不要执行",
 	}
-	cancelWords := []string{"取消", "不用", "不需要", "算了", "no"}
 	for _, item := range cancelWords {
 		if strings.Contains(value, item) {
 			return DecisionCancel
 		}
 	}
+	confirmWords := []string{
+		"确认", "是", "好的", "可以", "ok", "yes", "continue", "confirm", "继续", "同意",
+		"提交", "确定", "办理", "执行",
+	}
+	for _, item := range confirmWords {
+		if strings.Contains(value, item) {
+			return DecisionConfirm
+		}
+	}
 	return ""
 }
 
@@ -40,10 +46,6 @@ func NewRuntimeStaticTool(toolCode string) registry.Tool {
 		return NewTriageServiceRequestTool()
 	case toolx.GraphAnalyzeConversation.Code:
 		return NewAnalyzeConversationTool()
-	case toolx.GraphPrepareTicketDraft.Code:
-		return NewPrepareTicketDraftTool()
-	case toolx.GraphCreateTicketConfirm.Code:
-		return NewCreateTicketGraphTool()
 	case toolx.GraphHandoffConversation.Code:
 		return NewHandoffGraphTool()
 	default: