feat: add support for attachments in template management

- Enhanced TemplateEditForm to include attachments in the template data.
- Updated createDocumentFromTemplate to handle attachment creation.
- Modified updateTemplate to manage attachment updates and deletions.
- Integrated attachments into ZTemplateSchema and ZAddTemplateSettingsFormSchema for validation.
- Improved getTemplateById to fetch attachments alongside other template data.

packages/lib/server-only/template/create-document-from-template.ts

@@ -296,6 +296,7 @@ export const createDocumentFromTemplate = async ({
           fields: true,
         },
       },
+      attachments: true,
       templateDocumentData: true,
       templateMeta: true,
       team: {
@@ -385,6 +386,15 @@ export const createDocumentFromTemplate = async ({
         }),
         visibility: template.visibility || template.team?.teamGlobalSettings?.documentVisibility,
         useLegacyFieldInsertion: template.useLegacyFieldInsertion ?? false,
+        attachments: {
+          create: template.attachments.map((attachment) => ({
+            type: attachment.type,
+            label: attachment.label,
+            url: attachment.url,
+            createdAt: attachment.createdAt,
+            updatedAt: attachment.updatedAt,
+          })),
+        },
         documentMeta: {
           create: {
             subject: override?.subject || template.templateMeta?.subject,