improvement(google-oauth): prevent google oauth enforcement if sso configured, and prevent sso enablement if google oauth enforcement is enabled on both back/frontend and improve labeling

backend/src/services/org/org-service.ts

@@ -14,6 +14,7 @@ import {
   TUsers
 } from "@app/db/schemas";
 import { TGroupDALFactory } from "@app/ee/services/group/group-dal";
+import { TLdapConfigDALFactory } from "@app/ee/services/ldap-config/ldap-config-dal";
 import { TLicenseServiceFactory } from "@app/ee/services/license/license-service";
 import { TOidcConfigDALFactory } from "@app/ee/services/oidc/oidc-config-dal";
 import {
@@ -125,6 +126,7 @@ type TOrgServiceFactoryDep = {
   incidentContactDAL: TIncidentContactsDALFactory;
   samlConfigDAL: Pick<TSamlConfigDALFactory, "findOne">;
   oidcConfigDAL: Pick<TOidcConfigDALFactory, "findOne">;
+  ldapConfigDAL: Pick<TLdapConfigDALFactory, "findOne">;
   smtpService: TSmtpService;
   tokenService: TAuthTokenServiceFactory;
   permissionService: TPermissionServiceFactory;
@@ -165,6 +167,7 @@ export const orgServiceFactory = ({
   projectRoleDAL,
   samlConfigDAL,
   oidcConfigDAL,
+  ldapConfigDAL,
   projectUserMembershipRoleDAL,
   identityMetadataDAL,
   projectBotService,
@@ -483,6 +486,42 @@ export const orgServiceFactory = ({
         });
       }
 
+      const samlCfg = await samlConfigDAL.findOne({
+        orgId,
+        isActive: true
+      });
+
+      if (samlCfg) {
+        throw new BadRequestError({
+          message:
+            "Cannot enable Google OAuth enforcement while SAML SSO is configured. Disable SAML SSO to enforce Google OAuth."
+        });
+      }
+
+      const oidcCfg = await oidcConfigDAL.findOne({
+        orgId,
+        isActive: true
+      });
+
+      if (oidcCfg) {
+        throw new BadRequestError({
+          message:
+            "Cannot enable Google OAuth enforcement while OIDC SSO is configured. Disable OIDC SSO to enforce Google OAuth."
+        });
+      }
+
+      const ldapCfg = await ldapConfigDAL.findOne({
+        orgId,
+        isActive: true
+      });
+
+      if (ldapCfg) {
+        throw new BadRequestError({
+          message:
+            "Cannot enable Google OAuth enforcement while LDAP SSO is configured. Disable LDAP SSO to enforce Google OAuth."
+        });
+      }
+
       if (!currentOrg.googleSsoAuthLastUsed) {
         throw new BadRequestError({
           message: