improvement(wait): hint the wait-amount cap on the input

Restores the pre-#4331 description on the Wait Amount field so the limit is visible before submit instead of only at runtime. Mentions both the 5 min default and the 30 day cap with Suspend Workflow.

Author: TheodoreSpeaks

apps/sim/blocks/blocks/wait.ts

@@ -26,6 +26,7 @@ export const WaitBlock: BlockConfig = {
       id: 'timeValue',
       title: 'Wait Amount',
       type: 'short-input',
+      description: 'Max 5 minutes (300 seconds). Enable Suspend Workflow for up to 30 days.',
       placeholder: '10',
       value: () => '10',
       required: true,