Make rotationIntervalSeconds nullable

backend/src/db/migrations/20251015042917_pam-account-rotation.ts

@@ -10,7 +10,7 @@ export async function up(knex: Knex): Promise<void> {
   ) {
     await knex.schema.alterTable(TableName.PamAccount, (t) => {
       t.boolean("rotationEnabled").notNullable().defaultTo(false);
-      t.integer("rotationIntervalSeconds").notNullable();
+      t.integer("rotationIntervalSeconds").nullable();
       t.timestamp("lastRotatedAt").nullable();
     });
   }

backend/src/db/schemas/pam-accounts.ts

@@ -20,7 +20,7 @@ export const PamAccountsSchema = z.object({
   createdAt: z.date(),
   updatedAt: z.date(),
   rotationEnabled: z.boolean().default(false),
-  rotationIntervalSeconds: z.number().default(2592000),
+  rotationIntervalSeconds: z.number().nullable().optional(),
   lastRotatedAt: z.date().nullable().optional()
 });