Fix portal account creation and improve email handling

- Add explicit POST method to portal account creation API call
- Improve error handling with specific messages for different failure cases
- Remove SMTP verification step that was causing issues with some servers
- Make email sending non-critical to portal account creation success
- Add better response data handling for keycloak_id
- Add integration review documentation

pages/dashboard/member-list.vue

@@ -507,23 +507,41 @@ const createPortalAccount = async (member: Member) => {
   creatingPortalAccountIds.value.push(member.Id);
   
   try {
-    const response = await $fetch(`/api/members/${member.Id}/create-portal-account`) as any;
+    const response = await $fetch<any>(`/api/members/${member.Id}/create-portal-account`, {
+      method: 'POST'
+    });
 
     if (response?.success) {
       // Update the member in the local array to reflect the new keycloak_id
       const index = members.value.findIndex(m => m.Id === member.Id);
       if (index !== -1) {
-        members.value[index] = { ...members.value[index], keycloak_id: response.keycloak_id };
+        // Get keycloak_id from response.data
+        members.value[index] = { ...members.value[index], keycloak_id: response.data?.keycloak_id };
       }
       
       showSuccess.value = true;
-      successMessage.value = `Portal account created successfully for ${member.FullName}. They will receive an email with login instructions.`;
+      successMessage.value = response.message || `Portal account created successfully for ${member.FullName}.`;
     } else {
       throw new Error(response?.message || 'Failed to create portal account');
     }
   } catch (err: any) {
     console.error('Error creating portal account:', err);
-    error.value = err.data?.message || err.message || 'Failed to create portal account. Please try again.';
+    
+    // Better error handling
+    let errorMessage = 'Failed to create portal account. Please try again.';
+    if (err.statusCode === 409) {
+      errorMessage = 'This member already has a portal account or a user with this email already exists.';
+    } else if (err.statusCode === 400) {
+      errorMessage = 'Member must have email, first name, and last name to create a portal account.';
+    } else if (err.data?.message) {
+      errorMessage = err.data.message;
+    } else if (err.message) {
+      errorMessage = err.message;
+    }
+    
+    // Show error in snackbar
+    showSuccess.value = true; // Reuse success snackbar for errors
+    successMessage.value = errorMessage;
   } finally {
     // Remove from creating array
     const index = creatingPortalAccountIds.value.indexOf(member.Id);