feat(replay): Add a note about bulk-deleting replays (#14675)

This new note appears on
[`product/explore/session-replay/web/replay-page-and-filters/` (prod
link)](https://docs.sentry.io/product/explore/session-replay/web/replay-page-and-filters/)
There's also a page about replay details, which already mentions
individual replay deletions, so i didn't touch that:
https://docs.sentry.io/product/explore/session-replay/web/replay-details/

<img width="759" height="895" alt="SCR-20250816-jgiy"
src="https://github.com/user-attachments/assets/0faa4c64-528c-4fa0-baa6-79a259f811c4"
/>

---------

Co-authored-by: Colton Allen <[email protected]>
Co-authored-by: Colton Allen <[email protected]>
Co-authored-by: Jasmin <[email protected]>

Author: 3 people

docs/product/explore/session-replay/web/img/replay-index-delete-all.png

@@ -29,3 +29,19 @@ Each replay will bring users to the [**Replay Details**](/product/explore/sessio
 All replays have built-in key fields, and may have [custom tags](/platforms/javascript/enriching-events/tags/) if you have them set up. The search bar operates similarly to the one in the Discover [Query Builder](/product/explore/discover-queries/query-builder/#filter-by-search-conditions). Use it to enter these keys and assign them values. This will filter down your list of replays so you can quickly find the ones with the criteria you care about. For example, you can refine your replays search to a specific browser by using `browser.version:` as a key field and assigning the version as a value. For a list of all the built-in key fields/replay properties, check out our [Searchable Properties](/concepts/search/searchable-properties/#replay-properties) documentation.
 
 ![Highlight the Search Filters input on the Session Replay Index Page](./img/replay-index-filtering.png)
+
+## Deleting Replays
+
+Replays can be deleted either individually or in bulk. Deleting replays in bulk requires project:write or project:admin access.
+
+When a replay is deleted, it is permanently removed from Sentry's servers, with the exception of its metadata. The metadata rows are archived and remain inaccessible to users. They are retained only until they are removed according to your organization's [data retention policy](https://sentry.io/security/#data-retention). These metadata rows may also be eagerly deleted, but doing so requires manual intervention. To request this, please file a support ticket by emailing [email protected].
+
+To delete a [single replay](/session-replay/web/replay-details/#delete-replays), go to the Replay Details page and click the "Delete" link, which is located under the "..." (more options) button.
+
+To delete multiple replays at once, go to the **Replay** page and use the checkboxes next to each replay row to select the ones you want to delete. Then, click the "Delete" button to remove the selected replays. Deleting a large number of replays takes some time to complete. If a job is running you will see a banner at the top of the Replay list and a link to 'Track Progress'. You can also visit Settings > Project > MyProject > Replays to see the history of previous deletion jobs.
+
+![](img/replay-index-delete-visible.png)
+
+Alternatively, you can delete all replays that match a search query by clicking "Select all" at the top of the results list. This selects every replay matching the current filters, not just those visible on the page.
+
+![](img/replay-index-delete-all.png)