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/service/signature_service.go

@@ -32,8 +32,8 @@ const (
 	RedisTTL              = 0 // 永不过期，由应用程序管理过期时间
 )
 
-// signatureService 签名服务实现
-type signatureService struct {
+// SignatureService 签名服务（导出以便依赖注入）
+type SignatureService struct {
 	profileRepo repository.ProfileRepository
 	redis       *redis.Client
 	logger      *zap.Logger
@@ -44,8 +44,8 @@ func NewSignatureService(
 	profileRepo repository.ProfileRepository,
 	redisClient *redis.Client,
 	logger *zap.Logger,
-) *signatureService {
-	return &signatureService{
+) *SignatureService {
+	return &SignatureService{
 		profileRepo: profileRepo,
 		redis:       redisClient,
 		logger:      logger,
@@ -53,7 +53,7 @@ func NewSignatureService(
 }
 
 // NewKeyPair 生成新的RSA密钥对
-func (s *signatureService) NewKeyPair() (*model.KeyPair, error) {
+func (s *SignatureService) NewKeyPair() (*model.KeyPair, error) {
 	privateKey, err := rsa.GenerateKey(rand.Reader, KeySize)
 	if err != nil {
 		return nil, fmt.Errorf("生成RSA密钥对失败: %w", err)
@@ -132,7 +132,7 @@ func (s *signatureService) NewKeyPair() (*model.KeyPair, error) {
 }
 
 // GetOrCreateYggdrasilKeyPair 获取或创建Yggdrasil根密钥对
-func (s *signatureService) GetOrCreateYggdrasilKeyPair() (string, *rsa.PrivateKey, error) {
+func (s *SignatureService) GetOrCreateYggdrasilKeyPair() (string, *rsa.PrivateKey, error) {
 	ctx := context.Background()
 
 	// 尝试从Redis获取密钥
@@ -201,7 +201,7 @@ func (s *signatureService) GetOrCreateYggdrasilKeyPair() (string, *rsa.PrivateKe
 }
 
 // GetPublicKeyFromRedis 从Redis获取公钥
-func (s *signatureService) GetPublicKeyFromRedis() (string, error) {
+func (s *SignatureService) GetPublicKeyFromRedis() (string, error) {
 	ctx := context.Background()
 	publicKey, err := s.redis.Get(ctx, PublicKeyRedisKey)
 	if err != nil {
@@ -218,7 +218,7 @@ func (s *signatureService) GetPublicKeyFromRedis() (string, error) {
 }
 
 // SignStringWithSHA1withRSA 使用SHA1withRSA签名字符串
-func (s *signatureService) SignStringWithSHA1withRSA(data string) (string, error) {
+func (s *SignatureService) SignStringWithSHA1withRSA(data string) (string, error) {
 	ctx := context.Background()
 
 	// 从Redis获取私钥