优化，排查项目问题

internal/repository/api_config_repository.go

@@ -10,17 +10,17 @@ import (
 	"github.com/truewhile/MeBox/internal/model"
 )
 
-// ApiConfigRepository persists model.ApiConfig records.
+// ApiConfigRepository persists model.APIConfig records.
 type ApiConfigRepository struct{ db *gorm.DB }
 
 // Create inserts a new API config record.
-func (r *ApiConfigRepository) Create(ctx context.Context, c *model.ApiConfig) error {
+func (r *ApiConfigRepository) Create(ctx context.Context, c *model.APIConfig) error {
 	return r.db.WithContext(ctx).Create(c).Error
 }
 
 // FindByProvider returns the API config for a provider, or (nil, nil).
-func (r *ApiConfigRepository) FindByProvider(ctx context.Context, provider string) (*model.ApiConfig, error) {
-	var c model.ApiConfig
+func (r *ApiConfigRepository) FindByProvider(ctx context.Context, provider string) (*model.APIConfig, error) {
+	var c model.APIConfig
 	err := r.db.WithContext(ctx).Where("provider = ?", provider).First(&c).Error
 	if errors.Is(err, gorm.ErrRecordNotFound) {
 		return nil, nil
@@ -32,27 +32,40 @@ func (r *ApiConfigRepository) FindByProvider(ctx context.Context, provider strin
 }
 
 // List returns all API configs.
-func (r *ApiConfigRepository) List(ctx context.Context) ([]model.ApiConfig, error) {
-	var rows []model.ApiConfig
+func (r *ApiConfigRepository) List(ctx context.Context) ([]model.APIConfig, error) {
+	var rows []model.APIConfig
 	err := r.db.WithContext(ctx).Order("provider asc").Find(&rows).Error
 	return rows, err
 }
 
 // Upsert creates or updates an API config.
-func (r *ApiConfigRepository) Upsert(ctx context.Context, c *model.ApiConfig) error {
-	return r.db.WithContext(ctx).Where("provider = ?", c.Provider).
-		Assign(model.ApiConfig{
-			Base:    model.Base{UpdatedAt: time.Now()},
-			APIKey:  c.APIKey,
-			BaseURL: c.BaseURL,
-			Extra:   c.Extra,
-			Enabled: c.Enabled,
-		}).FirstOrCreate(c).Error
+// 显式 map 更新：Assign(struct) 会跳过零值字段，导致 Enabled=false、
+// 清空 BaseURL/Extra 等撤销操作静默失效。
+func (r *ApiConfigRepository) Upsert(ctx context.Context, c *model.APIConfig) error {
+	return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		var existing model.APIConfig
+		err := tx.Where("provider = ?", c.Provider).First(&existing).Error
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return tx.Create(c).Error
+		}
+		if err != nil {
+			return err
+		}
+		c.ID = existing.ID
+		c.CreatedAt = existing.CreatedAt
+		return tx.Model(&existing).Updates(map[string]any{
+			"api_key":    c.APIKey,
+			"base_url":   c.BaseURL,
+			"extra":      c.Extra,
+			"enabled":    c.Enabled,
+			"updated_at": time.Now(),
+		}).Error
+	})
 }
 
 // Update updates an API config.
-func (r *ApiConfigRepository) Update(ctx context.Context, c *model.ApiConfig) error {
-	return r.db.WithContext(ctx).Model(&model.ApiConfig{}).
+func (r *ApiConfigRepository) Update(ctx context.Context, c *model.APIConfig) error {
+	return r.db.WithContext(ctx).Model(&model.APIConfig{}).
 		Where("provider = ?", c.Provider).Updates(map[string]any{
 		"api_key":    c.APIKey,
 		"base_url":   c.BaseURL,
@@ -64,13 +77,13 @@ func (r *ApiConfigRepository) Update(ctx context.Context, c *model.ApiConfig) er
 
 // Delete 物理删除 API 配置。
 func (r *ApiConfigRepository) Delete(ctx context.Context, provider string) error {
-	return r.db.WithContext(ctx).Unscoped().Where("provider = ?", provider).Delete(&model.ApiConfig{}).Error
+	return r.db.WithContext(ctx).Unscoped().Where("provider = ?", provider).Delete(&model.APIConfig{}).Error
 }
 
 // UpdateTestResult 更新测试结果。
 func (r *ApiConfigRepository) UpdateTestResult(ctx context.Context, provider, result string) error {
 	now := time.Now()
-	return r.db.WithContext(ctx).Model(&model.ApiConfig{}).
+	return r.db.WithContext(ctx).Model(&model.APIConfig{}).
 		Where("provider = ?", provider).Updates(map[string]any{
 		"test_result":    result,
 		"last_tested_at": &now,