feat(telemetry): matchup and direction context in timelines; live error groups

- h2h_viewed carries who-v-who, stats_sorted carries asc/desc via a
  timeline-only context prop
- error browser aggregates raw rows so new groups appear immediately
- catalogs re-extracted for shifted line references

src/features/players/components/profile/header.tsx

@@ -55,7 +55,10 @@ const Header = ({ player }: HeaderProps) => {
               size="sm"
               radius="xl"
               onClick={() => {
-                track("h2h_viewed", { source: "profile" });
+                track("h2h_viewed", {
+                  source: "profile",
+                  context: [player.first_name, player.last_name].filter(Boolean).join(" "),
+                });
                 h2hSheet.open();
               }}
               w={40}