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/store/crypt.go

@@ -44,10 +44,10 @@ import (
 // (new dep) — do NOT bolt on sha256(passphrase).
 
 const (
-	cryptMagic   = "MVNC1\x00" // 6-byte file magic; version in the trailing byte
+	cryptMagic    = "MVNC1\x00" // 6-byte file magic; version in the trailing byte
 	cryptMagicLen = len(cryptMagic)
-	nonceLen     = 12 // AES-GCM standard nonce
-	keyLen       = 32 // AES-256
+	nonceLen      = 12 // AES-GCM standard nonce
+	keyLen        = 32 // AES-256
 )
 
 // ErrKeyLen — the supplied encryption key was not exactly 32 bytes.