Return a specific 404 when starting a debug replay with no recordings in range (#24024)

web/public/locales/en/views/replay.json

@@ -21,6 +21,7 @@
     "toast": {
       "error": "Failed to start debug replay: {{error}}",
       "alreadyActive": "A replay session is already active",
+      "noRecordings": "No recordings found in the selected time range",
       "stopError": "Failed to stop debug replay: {{error}}",
       "goToReplay": "Go to Replay"
     }

web/src/components/overlay/DebugReplayDialog.tsx

@@ -217,7 +217,11 @@ export default function DebugReplayDialog({
           error.response?.data?.detail ||
           "Unknown error";
 
-        if (error.response?.status === 409) {
+        if (error.response?.status === 404) {
+          toast.error(t("dialog.toast.noRecordings"), {
+            position: "top-center",
+          });
+        } else if (error.response?.status === 409) {
           toast.error(t("dialog.toast.alreadyActive"), {
             position: "top-center",
             closeButton: true,