feat: user v3 contact email and phone (#8644)

# Which Problems Are Solved

Endpoints to maintain email and phone contact on user v3 are not
implemented.

# How the Problems Are Solved

Add 3 endpoints with SetContactEmail, VerifyContactEmail and
ResendContactEmailCode.
Add 3 endpoints with SetContactPhone, VerifyContactPhone and
ResendContactPhoneCode.
Refactor the logic how contact is managed in the user creation and
update.

# Additional Changes

None

# Additional Context

- part of https://github.com/zitadel/zitadel/issues/6433

---------

Co-authored-by: Livio Spring <livio.a@gmail.com>

internal/api/grpc/resources/user/v3alpha/server.go

@@ -6,7 +6,6 @@ import (
 	"github.com/zitadel/zitadel/internal/api/authz"
 	"github.com/zitadel/zitadel/internal/api/grpc/server"
 	"github.com/zitadel/zitadel/internal/command"
-	"github.com/zitadel/zitadel/internal/crypto"
 	user "github.com/zitadel/zitadel/pkg/grpc/resources/user/v3alpha"
 )
 
@@ -14,19 +13,16 @@ var _ user.ZITADELUsersServer = (*Server)(nil)
 
 type Server struct {
 	user.UnimplementedZITADELUsersServer
-	command     *command.Commands
-	userCodeAlg crypto.EncryptionAlgorithm
+	command *command.Commands
 }
 
 type Config struct{}
 
 func CreateServer(
 	command *command.Commands,
-	userCodeAlg crypto.EncryptionAlgorithm,
 ) *Server {
 	return &Server{
-		command:     command,
-		userCodeAlg: userCodeAlg,
+		command: command,
 	}
 }