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/triage_service_request_tool.go

@@ -62,28 +62,21 @@ func (t *TriageServiceRequestTool) Info(ctx context.Context) (*schema.ToolInfo,
 					},
 				},
 				orderedmap.Pair[string, *einojsonschema.Schema]{
-					Key: "observedIssue",
+					Key: "observed_issue",
 					Value: &einojsonschema.Schema{
 						Type:        "string",
 						Description: i18nx.Get("tool.graph.triageServiceRequest.param.observedIssue"),
 					},
 				},
 				orderedmap.Pair[string, *einojsonschema.Schema]{
-					Key: "needTicket",
-					Value: &einojsonschema.Schema{
-						Type:        "boolean",
-						Description: i18nx.Get("tool.graph.triageServiceRequest.param.needTicket"),
-					},
-				},
-				orderedmap.Pair[string, *einojsonschema.Schema]{
-					Key: "needHumanHandoff",
+					Key: "need_human_handoff",
 					Value: &einojsonschema.Schema{
 						Type:        "boolean",
 						Description: i18nx.Get("tool.graph.triageServiceRequest.param.needHumanHandoff"),
 					},
 				},
 				orderedmap.Pair[string, *einojsonschema.Schema]{
-					Key: "additionalContext",
+					Key: "additional_context",
 					Value: &einojsonschema.Schema{
 						Type:        "string",
 						Description: i18nx.Get("tool.graph.triageServiceRequest.param.additionalContext"),
@@ -92,8 +85,8 @@ func (t *TriageServiceRequestTool) Info(ctx context.Context) (*schema.ToolInfo,
 			)),
 		}),
 		Extra: map[string]any{
-			"toolCode":   toolx.GraphTriageServiceRequest.Code,
-			"sourceType": "graph",
+			"tool_code":   toolx.GraphTriageServiceRequest.Code,
+			"source_type": "graph",
 		},
 	}, nil
 }