chore: Update CHANGELOG.md

fix: Do not comment if --comment is not present

CHANGELOG.md

@@ -10,6 +10,8 @@
 - Fixed plugin browse showing misleading "Space to Toggle" hint for already-installed plugins
 - Fixed hook blocking errors (exit code 2) not showing stderr to the user
 - Added `speed` attribute to OTel events and trace spans for fast mode visibility
+- Fixed /resume showing interrupt messages as session titles
+- Fixed Opus 4.6 launch announcement showing for Bedrock/Vertex/Foundry users
 - Improved terminal rendering performance
 - Fixed fatal errors being swallowed instead of displayed
 - Fixed process hanging after session close