[feature]: Let notification preferences filter the in-app Inbox, not just email #10218

Is there an existing issue for this?

• I have searched the existing issues

Summary

The notification settings for property changes, state changes, comments and so on only decide which emails are sent. The in-app Inbox still gets everything. Please apply the same choices, or a separate set, to Inbox notifications.

Why should this be worked on?

Most of our Inbox is field updates, like target date, cycle and estimate changes on tickets we only follow. They need no action and bury the mentions and assignments that do. Turning off property changes already stops those emails, but the Inbox has no equivalent, so the only fix is clearing them by hand.