fix: filter third-party script errors from frontend telemetry

apps/web/src/utils/logger.ts

@@ -49,6 +49,18 @@ const initialiseFrontendLogger = (): void => {
         ? argument
         : JSON.stringify(argument);
     }).join(" ");
+
+    /*
+     * Ignore errors originating entirely from third-party scripts (e.g. AdSense).
+     * Stack frames from our own code reference elysium.nhcarrigan.com or localhost;
+     * if none are present but external URLs are, the error is not actionable.
+     */
+    const hasExternalUrl = (/https?:\/\//u).test(message);
+    const hasOurDomain = message.includes("elysium.nhcarrigan.com");
+    const hasOwnFrame = hasOurDomain || message.includes("localhost");
+    if (hasExternalUrl && !hasOwnFrame) {
+      return;
+    }
     const context = "console.error";
     post("/api/fe/error", { context, message });
   };