refactor: Update service and repository methods to use context

- Refactored multiple service and repository methods to accept context as a parameter, enhancing consistency and enabling better control over request lifecycles.
- Updated handlers to utilize context in method calls, improving error handling and performance.
- Cleaned up Dockerfile by removing unnecessary whitespace.

internal/repository/system_config_repository.go

@@ -2,6 +2,7 @@ package repository
 
 import (
 	"carrotskin/internal/model"
+	"context"
 
 	"gorm.io/gorm"
 )
@@ -16,28 +17,28 @@ func NewSystemConfigRepository(db *gorm.DB) SystemConfigRepository {
 	return &systemConfigRepository{db: db}
 }
 
-func (r *systemConfigRepository) GetByKey(key string) (*model.SystemConfig, error) {
+func (r *systemConfigRepository) GetByKey(ctx context.Context, key string) (*model.SystemConfig, error) {
 	var config model.SystemConfig
-	err := r.db.Where("key = ?", key).First(&config).Error
+	err := r.db.WithContext(ctx).Where("key = ?", key).First(&config).Error
 	return handleNotFoundResult(&config, err)
 }
 
-func (r *systemConfigRepository) GetPublic() ([]model.SystemConfig, error) {
+func (r *systemConfigRepository) GetPublic(ctx context.Context) ([]model.SystemConfig, error) {
 	var configs []model.SystemConfig
-	err := r.db.Where("is_public = ?", true).Find(&configs).Error
+	err := r.db.WithContext(ctx).Where("is_public = ?", true).Find(&configs).Error
 	return configs, err
 }
 
-func (r *systemConfigRepository) GetAll() ([]model.SystemConfig, error) {
+func (r *systemConfigRepository) GetAll(ctx context.Context) ([]model.SystemConfig, error) {
 	var configs []model.SystemConfig
-	err := r.db.Find(&configs).Error
+	err := r.db.WithContext(ctx).Find(&configs).Error
 	return configs, err
 }
 
-func (r *systemConfigRepository) Update(config *model.SystemConfig) error {
-	return r.db.Save(config).Error
+func (r *systemConfigRepository) Update(ctx context.Context, config *model.SystemConfig) error {
+	return r.db.WithContext(ctx).Save(config).Error
 }
 
-func (r *systemConfigRepository) UpdateValue(key, value string) error {
-	return r.db.Model(&model.SystemConfig{}).Where("key = ?", key).Update("value", value).Error
+func (r *systemConfigRepository) UpdateValue(ctx context.Context, key, value string) error {
+	return r.db.WithContext(ctx).Model(&model.SystemConfig{}).Where("key = ?", key).Update("value", value).Error
 }