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>

cmd/mavend/tick.go

@@ -45,8 +45,8 @@ type tickLoop struct {
 	phraser    phraser.Phraser
 	rules      []loop.Rule
 
-	tickInterval   time.Duration
-	repeatInterval time.Duration
+	tickInterval     time.Duration
+	repeatInterval   time.Duration
 	autotuneInterval time.Duration // 0 ⇒ autotune disabled (gatherer falls back to static Base)
 
 	// digestCfg — the digest/batching config. nil ⇒ every nudge is sent
@@ -429,4 +429,4 @@ func toIPCGateDetail(d loop.GateDetail) ipc.GateDetail {
 		Presence:         d.Presence,
 		InertKeysMissing: d.InertKeysMissing,
 	}
-}
+}