refac: password and code hashing & checking go through a domain hasher interface used by the use cases instead of bcrypt in the user repository and the auth handler

internal/domain/hash/hashDomain.go

@@ -0,0 +1,6 @@
+package hash
+
+type Hasher interface {
+	Hash(value string) (string, error)
+	Compare(hashed string, value string) error
+}