feat(ticket): add extension requests and improve repair proof upload UI

src/app/(modules)/ticket/queries/ticketKeys.ts

@@ -11,5 +11,13 @@ export const ticketKeys = {
     [...ticketKeys.details(), ticketId, 'class', defectClass] as const,
   defectClasses: (ticketId: string) =>
     [...ticketKeys.details(), ticketId, 'defect-classes'] as const,
+  extensionRequest: (ticketId: string, assignmentId: number | undefined) =>
+    [
+      ...ticketKeys.details(),
+      ticketId,
+      'assignments',
+      assignmentId,
+      'extension-request',
+    ] as const,
   assignableUsers: () => [...ticketKeys.all, 'assignable-users'] as const,
 };