fix(backend): remove verbose message trimming logs

Removes the console.log spam that was triggered on every incoming chat message
when the store exceeded MAX_REGULAR_MESSAGES. The trimming logic still works
silently in the background.

.gitignore

@@ -27,6 +27,7 @@ node_modules/
 *.njsproj
 *.sln
 *.sw?
+.codellm
 # OS specific
 
 # Task files and project management