feat: invite user link (#8578)

# Which Problems Are Solved

As an administrator I want to be able to invite users to my application
with the API V2, some user data I will already prefil, the user should
add the authentication method themself (password, passkey, sso).

# How the Problems Are Solved

- A user can now be created with a email explicitly set to false.
- If a user has no verified email and no authentication method, an
`InviteCode` can be created through the User V2 API.
  - the code can be returned or sent through email
- additionally `URLTemplate` and an `ApplicatioName` can provided for
the email
- The code can be resent and verified through the User V2 API
- The V1 login allows users to verify and resend the code and set a
password (analog user initialization)
- The message text for the user invitation can be customized

# Additional Changes

- `verifyUserPasskeyCode` directly uses `crypto.VerifyCode` (instead of
`verifyEncryptedCode`)
- `verifyEncryptedCode` is removed (unnecessarily queried for the code
generator)

# Additional Context

- closes #8310
- TODO: login V2 will have to implement invite flow:
https://github.com/zitadel/typescript/issues/166

internal/command/user_human_test.go

@@ -626,6 +626,67 @@ func TestCommandSide_AddHuman(t *testing.T) {
 				wantEmailCode: "emailCode",
 			},
 		},
+		{
+			name: "add human (with password and unverified email), ok (no email code)",
+			fields: fields{
+				eventstore: expectEventstore(
+					expectFilter(),
+					expectFilter(
+						eventFromEventPusher(
+							org.NewDomainPolicyAddedEvent(context.Background(),
+								&user.NewAggregate("user1", "org1").Aggregate,
+								true,
+								true,
+								true,
+							),
+						),
+					),
+					expectFilter(
+						eventFromEventPusher(
+							org.NewPasswordComplexityPolicyAddedEvent(context.Background(),
+								&user.NewAggregate("user1", "org1").Aggregate,
+								1,
+								false,
+								false,
+								false,
+								false,
+							),
+						),
+					),
+					expectPush(
+						newAddHumanEvent("$plain$x$password", false, true, "", AllowedLanguage),
+					),
+				),
+				idGenerator:        id_mock.NewIDGeneratorExpectIDs(t, "user1"),
+				userPasswordHasher: mockPasswordHasher("x"),
+				codeAlg:            crypto.CreateMockEncryptionAlg(gomock.NewController(t)),
+				newCode:            mockEncryptedCode("emailCode", time.Hour),
+			},
+			args: args{
+				ctx:   context.Background(),
+				orgID: "org1",
+				human: &AddHuman{
+					Username:  "username",
+					Password:  "password",
+					FirstName: "firstname",
+					LastName:  "lastname",
+					Email: Email{
+						Address:             "email@test.ch",
+						Verified:            false,
+						NoEmailVerification: true,
+					},
+					PreferredLanguage: AllowedLanguage,
+				},
+				secretGenerator: GetMockSecretGenerator(t),
+				allowInitMail:   false,
+			},
+			res: res{
+				want: &domain.ObjectDetails{
+					ResourceOwner: "org1",
+				},
+				wantID: "user1",
+			},
+		},
 		{
 			name: "add human email verified, ok",
 			fields: fields{