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/user_repository.go

@@ -2,6 +2,7 @@ package repository
 
 import (
 	"carrotskin/internal/model"
+	"context"
 	"errors"
 
 	"gorm.io/gorm"
@@ -17,50 +18,76 @@ func NewUserRepository(db *gorm.DB) UserRepository {
 	return &userRepository{db: db}
 }
 
-func (r *userRepository) Create(user *model.User) error {
-	return r.db.Create(user).Error
+func (r *userRepository) Create(ctx context.Context, user *model.User) error {
+	return r.db.WithContext(ctx).Create(user).Error
 }
 
-func (r *userRepository) FindByID(id int64) (*model.User, error) {
+func (r *userRepository) FindByID(ctx context.Context, id int64) (*model.User, error) {
 	var user model.User
-	err := r.db.Where("id = ? AND status != -1", id).First(&user).Error
+	err := r.db.WithContext(ctx).Where("id = ? AND status != -1", id).First(&user).Error
 	return handleNotFoundResult(&user, err)
 }
 
-func (r *userRepository) FindByUsername(username string) (*model.User, error) {
+func (r *userRepository) FindByUsername(ctx context.Context, username string) (*model.User, error) {
 	var user model.User
-	err := r.db.Where("username = ? AND status != -1", username).First(&user).Error
+	err := r.db.WithContext(ctx).Where("username = ? AND status != -1", username).First(&user).Error
 	return handleNotFoundResult(&user, err)
 }
 
-func (r *userRepository) FindByEmail(email string) (*model.User, error) {
+func (r *userRepository) FindByEmail(ctx context.Context, email string) (*model.User, error) {
 	var user model.User
-	err := r.db.Where("email = ? AND status != -1", email).First(&user).Error
+	err := r.db.WithContext(ctx).Where("email = ? AND status != -1", email).First(&user).Error
 	return handleNotFoundResult(&user, err)
 }
 
-func (r *userRepository) Update(user *model.User) error {
-	return r.db.Save(user).Error
+func (r *userRepository) FindByIDs(ctx context.Context, ids []int64) ([]*model.User, error) {
+	if len(ids) == 0 {
+		return []*model.User{}, nil
+	}
+	var users []*model.User
+	// 使用 IN 查询优化批量查询
+	err := r.db.WithContext(ctx).Where("id IN ? AND status != -1", ids).Find(&users).Error
+	return users, err
 }
 
-func (r *userRepository) UpdateFields(id int64, fields map[string]interface{}) error {
-	return r.db.Model(&model.User{}).Where("id = ?", id).Updates(fields).Error
+func (r *userRepository) Update(ctx context.Context, user *model.User) error {
+	return r.db.WithContext(ctx).Save(user).Error
 }
 
-func (r *userRepository) Delete(id int64) error {
-	return r.db.Model(&model.User{}).Where("id = ?", id).Update("status", -1).Error
+func (r *userRepository) UpdateFields(ctx context.Context, id int64, fields map[string]interface{}) error {
+	return r.db.WithContext(ctx).Model(&model.User{}).Where("id = ?", id).Updates(fields).Error
 }
 
-func (r *userRepository) CreateLoginLog(log *model.UserLoginLog) error {
-	return r.db.Create(log).Error
+func (r *userRepository) Delete(ctx context.Context, id int64) error {
+	return r.db.WithContext(ctx).Model(&model.User{}).Where("id = ?", id).Update("status", -1).Error
 }
 
-func (r *userRepository) CreatePointLog(log *model.UserPointLog) error {
-	return r.db.Create(log).Error
+func (r *userRepository) BatchUpdate(ctx context.Context, ids []int64, fields map[string]interface{}) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	result := r.db.WithContext(ctx).Model(&model.User{}).Where("id IN ?", ids).Updates(fields)
+	return result.RowsAffected, result.Error
 }
 
-func (r *userRepository) UpdatePoints(userID int64, amount int, changeType, reason string) error {
-	return r.db.Transaction(func(tx *gorm.DB) error {
+func (r *userRepository) BatchDelete(ctx context.Context, ids []int64) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	result := r.db.WithContext(ctx).Model(&model.User{}).Where("id IN ?", ids).Update("status", -1)
+	return result.RowsAffected, result.Error
+}
+
+func (r *userRepository) CreateLoginLog(ctx context.Context, log *model.UserLoginLog) error {
+	return r.db.WithContext(ctx).Create(log).Error
+}
+
+func (r *userRepository) CreatePointLog(ctx context.Context, log *model.UserPointLog) error {
+	return r.db.WithContext(ctx).Create(log).Error
+}
+
+func (r *userRepository) UpdatePoints(ctx context.Context, userID int64, amount int, changeType, reason string) error {
+	return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
 		var user model.User
 		if err := tx.Where("id = ?", userID).First(&user).Error; err != nil {
 			return err