fix: Move confirm email setting from email provider to basic auth settings (#37573)

* Move confirm email setting from email provider to basic auth settings

- Remove MAILER_AUTOCONFIRM from email provider form validation
- Add confirm email setting to BasicAuthSettingsForm with proper form validation
- Maintain existing functionality while improving UX by grouping related settings

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* Update BasicAuthSettingsForm.tsx

* Fix the default value of email confirm.

* Remove unnecessary comment.

---------

Co-authored-by: Claude <noreply@anthropic.com>

apps/studio/components/interfaces/Auth/AuthProvidersFormValidation.tsx

@@ -19,11 +19,6 @@ const PROVIDER_EMAIL = {
       description: 'This will enable Email based signup and login for your application',
       type: 'boolean',
     },
-    MAILER_AUTOCONFIRM: {
-      title: 'Confirm email',
-      description: `Users will need to confirm their email address before signing in for the first time.`,
-      type: 'boolean',
-    },
     MAILER_SECURE_EMAIL_CHANGE_ENABLED: {
       title: 'Secure email change',
       description: `Users will be required to confirm any email change on both the old email address and new email address.

apps/studio/components/interfaces/Auth/BasicAuthSettingsForm/BasicAuthSettingsForm.tsx

@@ -35,6 +35,7 @@ const schema = object({
   DISABLE_SIGNUP: boolean().required(),
   EXTERNAL_ANONYMOUS_USERS_ENABLED: boolean().required(),
   SECURITY_MANUAL_LINKING_ENABLED: boolean().required(),
+  MAILER_AUTOCONFIRM: boolean().required(),
   SITE_URL: string().required('Must have a Site URL'),
 })
 
@@ -52,6 +53,7 @@ const BasicAuthSettingsForm = () => {
       DISABLE_SIGNUP: true,
       EXTERNAL_ANONYMOUS_USERS_ENABLED: false,
       SECURITY_MANUAL_LINKING_ENABLED: false,
+      MAILER_AUTOCONFIRM: true,
       SITE_URL: '',
     },
   })
@@ -61,7 +63,8 @@ const BasicAuthSettingsForm = () => {
       form.reset({
         DISABLE_SIGNUP: !authConfig.DISABLE_SIGNUP,
         EXTERNAL_ANONYMOUS_USERS_ENABLED: authConfig.EXTERNAL_ANONYMOUS_USERS_ENABLED,
-        SECURITY_MANUAL_LINKING_ENABLED: authConfig.SECURITY_MANUAL_LINKING_ENABLED || false,
+        SECURITY_MANUAL_LINKING_ENABLED: authConfig.SECURITY_MANUAL_LINKING_ENABLED,
+        MAILER_AUTOCONFIRM: authConfig.MAILER_AUTOCONFIRM,
         SITE_URL: authConfig.SITE_URL,
       })
     }
@@ -250,6 +253,27 @@ const BasicAuthSettingsForm = () => {
                   </Alert_Shadcn_>
                 )}
             </CardContent>
+            <CardContent>
+              <FormField_Shadcn_
+                control={form.control}
+                name="MAILER_AUTOCONFIRM"
+                render={({ field }) => (
+                  <FormItemLayout
+                    layout="flex-row-reverse"
+                    label="Confirm email"
+                    description="Users will need to confirm their email address before signing in for the first time"
+                  >
+                    <FormControl_Shadcn_>
+                      <Switch
+                        checked={field.value}
+                        onCheckedChange={field.onChange}
+                        disabled={!canUpdateConfig}
+                      />
+                    </FormControl_Shadcn_>
+                  </FormItemLayout>
+                )}
+              />
+            </CardContent>
             <CardFooter className="justify-end space-x-2">
               {form.formState.isDirty && (
                 <Button type="default" onClick={() => form.reset()}>