docs: add v0.2.53 changelog and backfill v0.2.51

CHANGELOG.md

@@ -1,5 +1,43 @@
 # Changelog
 
+# v0.2.53
+
+The Chronicle goes audio: chapters can now have narrations you can listen to.
+
+### Features
+
+- **Chronicle narrations**: staff can upload an audio file for any story beat in the admin panel, and a player shows up on /story so you can listen to chapters like an audiobook. Chapters with audio get a headphones marker in the chapter list.
+- Narrations made with text-to-speech carry a small AI-generated note under the player.
+
+### Fixes
+
+- The session expiry warning toast no longer lingers after you sign out or extend your session.
+- Tooltips and image captions wrap long text properly instead of overflowing.
+
+---
+
+# v0.2.52
+
+Surveys get a faster flow this release, plus a nudge so pending ones don't get forgotten.
+
+### Features
+
+- **Surveys**: click a card to fill it out in a scrollable window on the spot instead of loading a separate page. Submitting closes the window and removes the card from your list, and the standalone survey page got tidied up to match the rest of the site.
+- Reminder toasts now appear from time to time while you have surveys still waiting on you, so they are harder to forget. Links can also open a specific survey's window directly.
+
+---
+
+# v0.2.51
+
+Surveys arrive, plus a warning before your session runs out.
+
+### Features
+
+- **Surveys**: admins can now run surveys with audience targeting, so the right members get asked the right questions.
+- **Session expiry**: a warning banner shows up before your session expires, with an extend button to stay signed in.
+
+---
+
 # v0.2.50
 
 Announcements bring command's voice to every page.