fix(task): restore task metadata contract and type fields in task types api

backend/plugins/domain/admin/handler/tasks_test.go

@@ -0,0 +1,97 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package handler_test
+
+import (
+	"Wavelet/core"
+	"Wavelet/core/contracts"
+	"Wavelet/core/extpoints"
+	"Wavelet/plugins/domain/admin/handler"
+	"Wavelet/plugins/domain/admin/service"
+	"Wavelet/plugins/drivers/driver_asynq_worker"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+type listTaskTypesResponse struct {
+	ErrorMsg string                  `json:"error_msg"`
+	Data     []contracts.TaskMetaDTO `json:"data"`
+}
+
+func TestListTaskTypesHandler(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+
+	ctx := core.NewContext(t.Context())
+	worker := driver_asynq_worker.New()
+	require.NoError(t, worker.Apply(ctx))
+
+	ctx.Task().Register("logs:db_switch", func(_ any) error { return nil },
+		extpoints.WithTaskType("logs_db_switch"),
+		extpoints.WithTaskName("切换日志数据库"),
+		extpoints.WithTaskDescription("复制迁移用户访问日志并在成功后切换日志主库"),
+		extpoints.WithTaskCategory("system"),
+		extpoints.WithTaskRetry(3),
+		extpoints.WithTaskQueue("default"),
+		extpoints.WithTaskRetryable(true),
+		extpoints.WithTaskParams(contracts.TaskParamDTO{
+			Name:        "target",
+			Label:       "目标日志库",
+			Type:        "string",
+			Required:    true,
+			Placeholder: "postgres|sqlite|clickhouse",
+			Description: "迁移目标",
+		}),
+	)
+
+	taskSvc, err := core.Inject[contracts.TaskService](ctx)
+	require.NoError(t, err)
+	service.SetTaskService(taskSvc)
+
+	r := gin.New()
+	r.GET("/api/v1/admin/tasks/types", handler.ListTaskTypes)
+
+	req := httptest.NewRequest(http.MethodGet, "/api/v1/admin/tasks/types", nil)
+	w := httptest.NewRecorder()
+	r.ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+
+	var resp listTaskTypesResponse
+	require.NoError(t, json.Unmarshal(w.Body.Bytes(), &resp))
+	assert.Empty(t, resp.ErrorMsg)
+	require.NotEmpty(t, resp.Data)
+
+	var found bool
+	for _, task := range resp.Data {
+		if task.Type == "logs_db_switch" {
+			found = true
+			assert.Equal(t, "logs:db_switch", task.AsynqTask)
+			assert.Equal(t, "切换日志数据库", task.Name)
+			assert.Equal(t, "复制迁移用户访问日志并在成功后切换日志主库", task.Description)
+			assert.Equal(t, "system", task.Category)
+			assert.Equal(t, 3, task.MaxRetry)
+			assert.Equal(t, "default", task.Queue)
+			assert.True(t, task.Retryable)
+			require.Len(t, task.Params, 1)
+			assert.Equal(t, "target", task.Params[0].Name)
+			assert.Equal(t, "目标日志库", task.Params[0].Label)
+			assert.Equal(t, "string", task.Params[0].Type)
+			assert.True(t, task.Params[0].Required)
+			assert.Equal(t, "postgres|sqlite|clickhouse", task.Params[0].Placeholder)
+		}
+	}
+	assert.True(t, found, "expected logs_db_switch in task types")
+
+	// Ensure NO task in the list has an empty Type or Name, which breaks SelectItem key/value in frontend
+	for _, task := range resp.Data {
+		assert.NotEmpty(t, task.Type, "task.type must never be empty")
+		assert.NotEmpty(t, task.Name, "task.name must never be empty")
+	}
+}

backend/plugins/domain/admin/plugin.go

@@ -171,9 +171,23 @@ func (p *Plugin) Apply(ctx *core.Context) error {
 	handler.RegisterRoutes(adminRouter)
 
 	// 2. Register Background Tasks
+	logSwitchHandler := &service.LogDBSwitchHandler{}
+	ctx.Task().Register(service.LogDBSwitchTask, func(c context.Context, payload []byte) error {
+		_, err := logSwitchHandler.Execute(c, payload)
+		return err
+	}, extpoints.WithTaskMeta(service.LogDBSwitchMeta))
+
 	ctx.Task().Register("admin:system_cleanup", func(_ context.Context, _ []byte) error {
 		return nil
-	}, extpoints.WithTaskRetry(1))
+	},
+		extpoints.WithTaskType("system_cleanup"),
+		extpoints.WithTaskName("系统垃圾清理"),
+		extpoints.WithTaskDescription("定期清理未使用上传文件、历史推送记录和过期任务执行日志"),
+		extpoints.WithTaskCategory("maintenance"),
+		extpoints.WithTaskRetry(1),
+		extpoints.WithTaskQueue("default"),
+		extpoints.WithTaskRetryable(true),
+	)
 
 	// 3. Register Cron Schedules
 	ctx.Schedule().RegisterCron("0 4 * * *", "admin:system_cleanup", map[string]string{"type": "daily"})

backend/plugins/domain/admin/service/log_switch.go

@@ -31,13 +31,25 @@ const (
 
 // LogDBSwitchMeta 描述切换日志数据库任务。
 var LogDBSwitchMeta = contracts.TaskMetaDTO{
-	Name:        LogDBSwitchTask,
-	DisplayName: "切换日志数据库",
-	Description: "复制迁移用户访问日志并在成功后切换日志主库（期间禁止日志写入）",
-	MaxRetry:    3,
-	Queue:       "default",
+	Type:         TaskTypeLogDBSwitch,
+	AsynqTask:    LogDBSwitchTask,
+	Name:         "切换日志数据库",
+	DisplayName:  "切换日志数据库",
+	Description:  "复制迁移用户访问日志并在成功后切换日志主库（期间禁止日志写入）",
+	Category:     "system",
+	SupportsTime: false,
+	MaxRetry:     3,
+	Queue:        "default",
+	Retryable:    true,
 	Params: []contracts.TaskParamDTO{
-		{Name: "target", Description: "迁移目标：postgres（主库为 PG 时）、sqlite（主库为 SQLite 时）或 clickhouse", Type: "string", Required: true},
+		{
+			Name:        "target",
+			Label:       "目标日志库",
+			Type:        "string",
+			Required:    true,
+			Placeholder: "postgres|sqlite|clickhouse",
+			Description: "迁移目标：postgres（主库为 PG 时）、sqlite（主库为 SQLite 时）或 clickhouse",
+		},
 	},
 }
 

backend/plugins/domain/admin/service/task.go

@@ -32,12 +32,11 @@ func DispatchTask(ctx context.Context, req model.DispatchTaskRequest) (string, e
 		return "", err
 	}
 
-	meta, ok := taskSvc.GetTaskMeta(req.TaskType)
-	if !ok {
+	if _, ok := taskSvc.GetTaskMeta(req.TaskType); !ok {
 		return "", errs.ErrInvalidTaskType
 	}
 
-	validated, err := validateTaskPayload(taskSvc, meta.Name, req.Payload)
+	validated, err := validateTaskPayload(taskSvc, req.TaskType, req.Payload)
 	if err != nil {
 		return "", err
 	}