feat: 机器人专属色调，名字和边框使用各自颜色便于对局区分

app/src/main/java/com/unogame/ui/components/PlayerAvatar.kt

@@ -27,15 +27,15 @@ fun PlayerAvatar(
     modifier: Modifier = Modifier
 ) {
     val isBot = player.id.startsWith("bot_")
-    val accentColor = if (player.isCurrentTurn) GoldAccent else Color.Gray
     val avatar = if (isBot) getBotAvatar(player.name) else null
-    val bgColor = avatar?.color ?: accentColor
+    val playerColor = avatar?.color ?: GoldAccent
+    val borderColor = if (player.isCurrentTurn) GoldAccent else playerColor
 
     Row(
         modifier = modifier
             .clip(RoundedCornerShape(12.dp))
             .background(if (isYou) DarkSurface.copy(alpha = 0.8f) else DarkCard)
-            .border(2.dp, accentColor, RoundedCornerShape(12.dp))
+            .border(2.dp, borderColor, RoundedCornerShape(12.dp))
             .padding(horizontal = 12.dp, vertical = 8.dp),
         verticalAlignment = Alignment.CenterVertically
     ) {
@@ -43,7 +43,7 @@ fun PlayerAvatar(
             modifier = Modifier
                 .size(36.dp)
                 .clip(CircleShape)
-                .background(bgColor),
+                .background(playerColor),
             contentAlignment = Alignment.Center
         ) {
             if (avatar != null) {
@@ -67,7 +67,7 @@ fun PlayerAvatar(
             Row(verticalAlignment = Alignment.CenterVertically) {
                 Text(
                     text = player.name,
-                    color = Color.White,
+                    color = if (isBot) playerColor else Color.White,
                     fontWeight = FontWeight.Bold,
                     fontSize = 14.sp
                 )