Variable preventSetOnReadOnlyAccountPluginConst

Prevents /set method calls on read-only accounts.

Read-Only Account Protection (RFC 8620 Section 1.6.2, Section 5.3):

• Validates that the target account's isReadOnly property is false
• Read-only accounts cannot accept any data modification operations
• All /set methods (create, update, destroy) require write access
• Attempting modifications on read-only accounts would fail with an accountReadOnly error

This validator catches the error client-side before making a server request, providing immediate feedback when attempting invalid operations on read-only accounts.

Common read-only scenarios:

• Shared resources with read-only permissions
• Archive or backup accounts
• Accounts in maintenance mode
• Delegated access with restricted permissions