Function check_admin_exists 

pub async fn check_admin_exists(
    __arg0: State<Arc<AppState>>,
) -> Result<impl IntoResponse, (StatusCode, Json<Value>)>

Checks if any administrator user exists in the system.

This endpoint is used during initialization to determine if the setup page should be displayed. It counts all User records with is_admin = true in the database.

Arguments

• State(data): Application state containing AppState for database access

Returns

• 200 OK with JSON: {"has_admin": bool} - Whether at least one admin exists
• 500 Internal Server Error if database query fails

Example Response

{"has_admin": false}