maven: gofmt handlers_test.go (fix stale alignment)

The Task-7 verification commit (d52f60c) added the CalendarEvents mock
method but left fakeCore's struct block misaligned, so `gofmt -l` still
flagged this file despite the "all gates green" claim. Realign it.

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

cmd/mavweb/handlers_test.go

@@ -41,19 +41,19 @@ type fakeCore struct {
 	signalErr error
 
 	// for handleDash tests
-	presence     ipc.Presence
-	facts        []ipc.Fact
-	nudges       []ipc.Nudge
-	notes        []ipc.Note
-	dashErr      error
+	presence ipc.Presence
+	facts    []ipc.Fact
+	nudges   []ipc.Nudge
+	notes    []ipc.Note
+	dashErr  error
 
 	// for handleRevert tests
-	revertKey    string
-	revertNewID  int64
-	revertErr    error
+	revertKey   string
+	revertNewID int64
+	revertErr   error
 
 	// for handleNotifications tests
-	nudgesErr    error
+	nudgesErr error
 
 	// for handleHistory tests
 	historyFacts []ipc.Fact
@@ -712,8 +712,8 @@ func TestHandleTrace(t *testing.T) {
 						GateResult:      false,
 						GateBlockedBy:   "quiet_hours",
 						GateDetail: ipc.GateDetail{
-							QuietHours: true,
-							Presence:   "away",
+							QuietHours:  true,
+							Presence:    "away",
 							SnoozeUntil: &snooze,
 						},
 						WasSelected: false,