🏷️ Coverage, end to end

SubHub started life around substitute teachers, but what it really manages is coverage, making sure a class is taught when its teacher is out. This release renames the product's core idea to match, so the words you read line up with what you're doing.

• The navigation section is now Coverage, where it used to read "Requests".
• Page titles, buttons, and badges all speak in terms of coverage. You'll start a "new coverage request" and watch it become "coverage" once it's approved.
• Email and text notifications use the same language, so a message about your absence reads the way the app does.

There's a single rule behind the change, and it follows the lifecycle:

• Before it's approved, it's a coverage request, something you asked for.
• Once it's approved, it's simply coverage, the real thing on the calendar.
• Anything cancelled, declined, or expired stays a "coverage request", since it never became coverage.

Nothing about how the product behaves changed here. The same stages, the same approvals, the same open jobs. Only the words got clearer.

The coverage section moved to a new address. If you had the old request pages bookmarked, SubHub forwards you to the new ones, so saved tabs and links keep working through this release.