fix: wire SSE for bot fights on mount — rounds weren't displayed in practice mode

wireSSE() was only called for human fights in onMounted, so bot fights
(webhook/poll mode) never received round_start/round_end events. The fight
ran server-side but the frontend showed nothing.

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

frontend/src/pages/FightPage.vue

@@ -528,11 +528,9 @@ onMounted(async () => {
 
   if (isLive.value) {
     startPolling({ onFinished: () => stopHumanPolling(), onTimeout: () => stopHumanPolling(), keepLive: isHumanFight.value })
-    if (isHumanFight.value) {
-      wireSSE()
-      // Scene init + human polling are handled by the liveFightData watcher
-      // (avoids double init if loadFight already set liveFightData)
-    }
+    wireSSE()
+    // Scene init + human polling are handled by the liveFightData watcher
+    // (avoids double init if loadFight already set liveFightData)
   }
 })