fix: SetTeam shows team name, TransactionCard receives teams

- Pass teams list to TransactionCard
- Resolve team name from tx.new_value (team_id)
- Shows 'Team -> Support' instead of just 'Team changed'

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

web/src/app/tickets/[id]/page.tsx

@@ -104,10 +104,12 @@ function userLabel(users: User[], userId: string | null) {
 function TransactionCard({
   tx,
   users,
+  teams,
   customFieldLabels,
 }: {
   tx: Transaction;
   users: User[];
+  teams: Team[];
   customFieldLabels: Record<string, string>;
 }) {
   const isSystem =
@@ -134,7 +136,8 @@ function TransactionCard({
     } else if (tx.transaction_type === "SetOwner") {
       message = tx.new_value ? `Assigned to ${userLabel(users, tx.new_value)}` : "Unassigned";
     } else if (tx.transaction_type === "SetTeam") {
-      message = "Team changed";
+      const teamName = tx.new_value ? (teams.find((t) => t.id === tx.new_value)?.name ?? "?") : null;
+      message = teamName ? `Team → ${teamName}` : "Team cleared";
     } else if (tx.transaction_type === "CustomFieldChange") {
       const fieldName = tx.field ? customFieldLabels[tx.field] ?? "Custom field" : "Custom field";
       message = tx.new_value ? `${fieldName} set to ${tx.new_value}` : `${fieldName} cleared`;
@@ -664,6 +667,7 @@ export default function TicketDetailPage({
                   key={tx.id}
                   tx={tx}
                   users={users}
+                  teams={teams}
                   customFieldLabels={customFieldLabels}
                 />
               ))}