feat(env): add tag support for environment variables and task injection

- Add generic DataRelation and DataStorage models for tags
- Update EnvService and EnvController to support tag assignment, querying, and filtering
- Integrate EnvTagsConfig in Env settings for managing environment tags
- Enhance TaskDialog environment selection to support searching and displaying env tags
- Fix missing TaskLangConfig import in RepoDialog

internal/models/data_rel.go

@@ -0,0 +1,33 @@
+package models
+
+import (
+	"github.com/engigu/baihu-panel/internal/constant"
+)
+
+// DataRelation 通用数据关联表
+type DataRelation struct {
+	ID        string    `json:"id" gorm:"primaryKey;size:20"`
+	DataID    string    `json:"data_id" gorm:"size:20;index;not null"`
+	RelateID  string    `json:"relate_id" gorm:"size:20;index;not null"`
+	Type      string    `json:"type" gorm:"size:50;index;not null"`
+	CreatedAt LocalTime `json:"created_at"`
+	UpdatedAt LocalTime `json:"updated_at"`
+}
+
+func (DataRelation) TableName() string {
+	return constant.TablePrefix + "data_relations"
+}
+
+// DataStorage 通用数据存储表
+type DataStorage struct {
+	ID        string    `json:"id" gorm:"primaryKey;size:20"`
+	Type      string    `json:"type" gorm:"size:50;index;not null"`
+	Name      string    `json:"name" gorm:"size:255;index;not null"`
+	Data      BigText   `json:"data"`
+	CreatedAt LocalTime `json:"created_at"`
+	UpdatedAt LocalTime `json:"updated_at"`
+}
+
+func (DataStorage) TableName() string {
+	return constant.TablePrefix + "data_storages"
+}