chore: unwrap server-changes notes to one line per paragraph

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: d-cs

.server-changes/snapshots-since-replica-primary-fallback.md

@@ -3,7 +3,4 @@ area: webapp
 type: improvement
 ---
 
-Run snapshot polling no longer errors or pays extra latency when the database read replica
-hasn't yet replicated the snapshot the runner is polling from
-(`RUN_ENGINE_READ_REPLICA_SNAPSHOTS_SINCE_ENABLED`): the read is briefly retried on the
-replica and served from the primary if it still hasn't caught up.
+Run snapshot polling no longer errors or pays extra latency when the database read replica hasn't yet replicated the snapshot the runner is polling from (`RUN_ENGINE_READ_REPLICA_SNAPSHOTS_SINCE_ENABLED`): the read is briefly retried on the replica and served from the primary if it still hasn't caught up.

.server-changes/snapshots-since-scoped-to-run.md

@@ -3,5 +3,4 @@ area: webapp
 type: fix
 ---
 
-Snapshot polling now rejects a since-snapshot id that doesn't belong to the run being polled,
-instead of using its timestamp to return a too-wide window of the run's snapshots.
+Snapshot polling now rejects a since-snapshot id that doesn't belong to the run being polled, instead of using its timestamp to return a too-wide window of the run's snapshots.