This fix allows salary package simulations opened from a link to correctly include the full yearly cost value. It helps HR teams and employees get accurate compensation simulations when using shared or pre-filled URLs.

This fix makes an automated mail test more reliable by ensuring a starred message is fully loaded before it is deleted during testing. It helps reduce false test failures, supporting smoother validation and releases without changing user-facing behavior.

Before this PR, the `delete starred message updates counter` test was sometimes failing. It occurs when the message is deleted before it is loaded. This PR ensures we wait for the message to be loaded before deleting it.

runbot-61305,62004