fix(events): make donation received events blue instead of green

Donation events were split into DONATION_SENT/DONATION_RECEIVED, and
DONATION_RECEIVED was grouped with the green "success" colors. In v31
all player donations (sent and received) were blue. Move DONATION_RECEIVED
back to the blue group so both directions render blue again.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/client/Utils.ts

@@ -514,7 +514,6 @@ export function getMessageTypeClasses(type: MessageType): string {
     case MessageType.SAM_HIT:
     case MessageType.CAPTURED_ENEMY_UNIT:
     case MessageType.CONQUERED_PLAYER:
-    case MessageType.DONATION_RECEIVED:
     case MessageType.ALLIANCE_ACCEPTED:
       return severityColors["success"];
     case MessageType.ATTACK_FAILED:
@@ -526,6 +525,7 @@ export function getMessageTypeClasses(type: MessageType): string {
     case MessageType.ATTACK_CANCELLED:
     case MessageType.ATTACK_REQUEST:
     case MessageType.DONATION_SENT:
+    case MessageType.DONATION_RECEIVED:
       return severityColors["blue"];
     case MessageType.MIRV_INBOUND:
     case MessageType.NUKE_INBOUND: