Niko Marmeladkov 73f09c29ab Add cert-based re-authentication (OpAuthCert) ... New flow: connect -> OpGetChallenge -> OpAuthCert (signature + certDER) -> server verifies cert chain + Ed25519 signature over challenge data -> reuses existing identity. No re-registration on reconnect.		2026-06-30 14:56:29 +03:00
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ca.go	Add cert-based re-authentication (OpAuthCert)	2026-06-30 14:56:29 +03:00