maven: fix test mocks for CalendarEvents interface (verification)

- Add CalendarEvents method to recordingAPI in auth_test.go
- Add CalendarEvents method to fakeCore in handlers_test.go

Co-Authored-By: opencode <opencode@anthropic.com>

internal/loop/loop_test.go

@@ -129,9 +129,9 @@ func TestTickCooldownSuppresses(t *testing.T) {
 	now := refTime()
 	// 4h since water (would fire) — but cooldown until now+10min. Suppressed.
 	s := State{
-		Now:       now,
-		Presence:  store.Present,
-		Facts:     map[string]store.Fact{
+		Now:      now,
+		Presence: store.Present,
+		Facts: map[string]store.Fact{
 			"water": factAt("water", "tap:water", `"250ml"`, now.Add(-4*time.Hour)),
 		},
 		CooldownUntil: map[string]time.Time{
@@ -197,9 +197,9 @@ func TestGateNoDataInertShutsUp(t *testing.T) {
 	// is missing in the snapshot — gate must still return false.
 	s := State{Now: refTime(), Presence: store.Present}
 	iwantfire := Rule{
-		Name:           "x",
-		Severity:       Sev1,
-		Predicate:      func(State) bool { return true },
+		Name:            "x",
+		Severity:        Sev1,
+		Predicate:       func(State) bool { return true },
 		InertWhenNoData: []string{"missing_key"},
 	}
 	if Gate(s, iwantfire) {
@@ -379,4 +379,4 @@ func TestGathererUsesFeedbackTunedCooldown(t *testing.T) {
 	if d, ok := ParseCooldownFact(fb); !ok || d != tuned {
 		t.Fatalf("ParseCooldownFact round-trip: want %v ok, got %v ok=%v", tuned, d, ok)
 	}
-}
+}