Update KDF Configuration and processing

- Change default Password Hash KDF Storage from 100_000 to 600_000 iterations
- Update Password Hash when the default iteration value is different
- Validate password_iterations
- Validate client-side KDF to prevent it from being set lower than 100_000

src/api/core/emergency_access.rs

@@ -662,7 +662,7 @@ async fn password_emergency_access(
     };
 
     // change grantor_user password
-    grantor_user.set_password(new_master_password_hash, None);
+    grantor_user.set_password(new_master_password_hash, true, None);
     grantor_user.akey = key;
     grantor_user.save(&mut conn).await?;