[FEATURE] add key weight and revoked check when user sign

[Peppermint1020]

Description:
Users can currently log in to their accounts using a key with a weight of 500 but are unable to sign messages with the same key. This feature request aims to add a check for key weight and revoked status when users attempt to sign messages.

Problem Statement:
Users with keys of insufficient weight (e.g., 500) can log in but are unable to sign messages, leading to confusion.
There is no explicit check to inform users if their key is revoked or lacks the necessary weight to perform specific actions.

Waiting @zzggo update script in backend.

Alert
This key has been revoked
This key has insufficient weight