feat(config): 支持配置名和内容模糊搜索

- 配置列表接口增加 keyword 参数，按 name 或 contents 模糊匹配
- 全局配置、应用配置和回收站页面增加关键字搜索框

server/internal/handler/config.go

@@ -29,6 +29,7 @@ type ConfigListRequest struct {
 	Env      string `form:"env"`
 	AppId    *int   `form:"appId"`
 	Deleted  bool   `form:"deleted"`
+	Keyword  string `form:"keyword"`
 }
 
 func (h *ConfigHandler) List(c *gin.Context) {
@@ -59,6 +60,11 @@ func (h *ConfigHandler) List(c *gin.Context) {
 		conditions = append(conditions, "env = ?")
 		args = append(args, req.Env)
 	}
+	if req.Keyword != "" {
+		like := "%" + req.Keyword + "%"
+		conditions = append(conditions, "(name LIKE ? OR contents LIKE ?)")
+		args = append(args, like, like)
+	}
 	if req.AppId != nil {
 		if *req.AppId <= 0 {
 			conditions = append(conditions, "(app_id is null OR app_id = 0)")