Registration form shows generic error instead of specific password requirement message

Description:

During registration on cloud.rocket.chat, when
user enters a password shorter than 14 characters,
a generic "unknown error" is shown instead of
a specific password requirement message.

This is confusing for new users who don't know
what went wrong.

Steps to reproduce:

1. Go to https://cloud.rocket.chat/register
2. Fill the details and type password smaller than 14 length and click register
3. now u got some unknown errors .

Expected behavior:

A clear, specific error message should be shown
to the user like:
"Password must be at least 14 characters long"

Instead of generic "An unknown error occurred"

Actual behavior:

1. it should show us the actual error like we are getting in the console and the main website.

Server Setup Information:

• Version of Rocket.Chat Server: cloud.rocket.chat (latest)
• License Type: Cloud (Free Trial)
• Number of Users: 1
• Operating System: Linux (cloud hosted)
• Deployment Method: cloud
• Number of Running Instances: N/A
• DB Replicaset Oplog: N/A
• NodeJS Version: N/A
• MongoDB Version: N/A

Client Setup Information

• Browser: Brave (latest)
• Operating System: Linux Mint

Additional context

Relevant logs:

Start by reproducing the issue at https://cloud.rocket.chat/register with a password shorter than 14 characters, then compare the registration flow's displayed error with the browser console and the main website behavior shown in the report. Done means the form displays a specific password-length message instead of “An unknown error occurred,” with the relevant registration tests updated or added.