## What kind of change does this PR introduce?
UI update.
## What is the current behavior?
The webhook endpoint details view showed all mock deliveries in a single
table with a Studio-specific sortable header treatment, no pagination,
and uneven row heights when the retry action was absent.
## What is the new behavior?
Moves the deliveries table onto TanStack table state, adopts the shared
`TableHeadSort` header UI, keeps the existing delivery search, and adds
simple previous/next pagination controls at the bottom. The mock
deliveries are expanded so pagination and sorting can be exercised in
both organisation and project flows, and the actions column now reserves
a consistent button footprint so every row keeps the same minimum
height.
| Before | After |
| --- | --- |
| <img width="1728" height="997" alt="Webhooks Settings Chisel Toolshed
Supabase-A4712323-6FD9-471B-B1F4-234B20686018"
src="https://github.com/user-attachments/assets/2745e5fd-1ef7-4f3a-872c-1fd8d10dce41"
/> | <img width="1728" height="997" alt="Webhooks Settings Chisel
Toolshed Supabase-D482241B-F324-4EA2-9B89-133AD5E10F17"
src="https://github.com/user-attachments/assets/5bfcefd8-cb58-46c0-a863-dcf80e4da4a3"
/> |
## Additional context
This keeps the view on the Data Table path now, while aligning the
sortable headers with the design-system table pattern instead of the
older Studio-local `DataTableColumnHeader` helper.
Charis