Rafforza i requisiti password con regole di complessità di mercato.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/config/locales/admin.en.yml

@@ -18,6 +18,8 @@ en:
       logout_success: Signed out
       password_current_incorrect: Current password is incorrect
       password_too_short: The new password must be at least 8 characters long
+      password_too_long: New password cannot exceed 72 characters
+      password_too_weak: "New password must include at least 3 of: lowercase, uppercase, numbers and symbols"
       password_mismatch: Passwords do not match
       password_updated: Password updated
       ops_acknowledged: Incident acknowledged
@@ -53,7 +55,7 @@ en:
       edit:
         title: Change password
         current_password_label: Current password
-        new_password_label: "New password (min. 8 characters)"
+        new_password_label: "New password (min. 8, at least 3 character types)"
         confirm_password_label: Confirm new password
         submit: Save password
         cancel: Cancel