Add Keycloak integration support

- Update domain configuration to portal subdomain with HTTPS
- Add keycloak_id field to member creation and update operations
- Add API endpoint for linking Keycloak accounts to existing members

server/utils/nocodb.ts

@@ -310,7 +310,8 @@ export const createMember = async (data: Partial<Member>): Promise<Member> => {
     "payment_due_date",
     "membership_status",
     "address",
-    "member_since"
+    "member_since",
+    "keycloak_id"
   ];
 
   // Filter the data to only include allowed fields
@@ -392,7 +393,8 @@ export const updateMember = async (id: string, data: Partial<Member>, retryCount
     "payment_due_date",
     "membership_status",
     "address",
-    "member_since"
+    "member_since",
+    "keycloak_id"
   ];
 
   // Filter the data to only include allowed fields