chore: prettier format all files, brotli, Sentry release tagging, CI gates

Prettier: auto-formatted 103 files to fix baseline. Prettier check in CI
  is now a hard gate (removed continue-on-error).

Brotli: installed libnginx-mod-http-brotli-filter/static. Enabled in nginx
  with brotli_static on for pre-compressed assets and comp_level 6.

Sentry releases: deploy script now exports VITE_APP_VERSION=<git-short-sha>
  before building so each Sentry release maps to an exact commit.
  CI also passes github.sha as VITE_APP_VERSION.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/features/room/RoomViewTyping.tsx

@@ -117,7 +117,13 @@ export const RoomViewTyping = as<'div', RoomViewTypingProps>(
               </>
             )}
           </Text>
-          <IconButton title="Drop Typing Status" aria-label="Drop typing status" size="300" radii="Pill" onClick={handleDropAll}>
+          <IconButton
+            title="Drop Typing Status"
+            aria-label="Drop typing status"
+            size="300"
+            radii="Pill"
+            onClick={handleDropAll}
+          >
             <Icon size="50" src={Icons.Cross} />
           </IconButton>
         </Box>