chore: remove unnecessary comments and suppress error logging

src/utils/api.js

@@ -41,8 +41,8 @@ async function sendCancelRequest(cancelUrl, requestId, reason) {
                 reason,
             }),
         })
-    } catch (e) {
-        console.debug('[Copilot] cancel request failed', e)
+    } catch {
+        // Cancel request failed silently
     }
 }