refactor(lolstats): switch from MCP to op.gg REST API for fresh data

- Profile now fetched via REST API (summoner lookup + summary endpoint)
- Match history via REST API games endpoint (proper JSON, no parser)
- All 10 players per game returned directly (no separate detail fetch)
- DDragon champion ID→name mapping loaded at startup
- Fixed summoner_id lookup to use # separator (was using - which failed)
- MCP kept as fallback for match detail and edge cases
- Frontend: find "me" by summoner name instead of assuming index 0

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

web/src/plugins/lolstats/LolstatsTab.tsx

@@ -266,10 +266,18 @@ export default function LolstatsTab({ data }: { data: any }) {
     doSearch(r.game_name, r.tag_line, r.region);
   }, [doSearch]);
 
+  // ── Find "me" in participants ──
+  const findMe = useCallback((match: MatchEntry): MatchParticipant | null => {
+    if (!profile) return match.participants?.[0] ?? null;
+    const myName = profile.game_name.toLowerCase();
+    return match.participants?.find(
+      p => p.summoner?.game_name?.toLowerCase() === myName,
+    ) ?? match.participants?.[0] ?? null;
+  }, [profile]);
+
   // ── Render Match Row ──
   const renderMatch = (match: MatchEntry) => {
-    // The participant is the target summoner (first and only in list from matches endpoint)
-    const me = match.participants?.[0];
+    const me = findMe(match);
     if (!me) return null;
 
     const isWin = me.stats?.result === 'WIN';