优化

internal/biz/infrastructure.go

@@ -31,3 +31,43 @@ type FileStorage interface {
 	DeletePrefix(context.Context, string) error
 	List(context.Context, string, string, int) ([]*StoredFile, string, bool, error)
 }
+
+type JWTSettings struct {
+	SigningKey string
+	Issuer     string
+	Expires    time.Duration
+	Buffer     time.Duration
+}
+
+type CaptchaSettings struct {
+	KeyLong         int
+	ImageWidth      int
+	ImageHeight     int
+	StoreExpiration time.Duration
+}
+
+type MediaSettings struct {
+	SessionTTL  int
+	MaxFileSize int64
+}
+
+// RuntimeSettings exposes only the active values needed by the application.
+// The data implementation resolves every call from conf.Runtime so hot reloads
+// take effect without rebuilding services.
+type RuntimeSettings interface {
+	RouterPrefix() string
+	JWTSettings() JWTSettings
+	CaptchaSettings() CaptchaSettings
+	MediaSettings() MediaSettings
+	UseMultipoint() bool
+}
+
+type IssuedToken struct {
+	Value     string
+	ExpiresAt time.Time
+	TTL       time.Duration
+}
+
+type TokenIssuer interface {
+	IssueToken(*User, uint, bool, time.Duration) (*IssuedToken, error)
+}