fix(federation-worker): reset consecutive_auth_failures on successful delivery

Pairs with the new 401/403 handler — a 2xx relay confirms HMAC trust is
healthy so the counter should clear. Mirrors the existing
consecutive_failures reset for network-layer health.

packages/server/src/utils/federationWorker.ts

@@ -262,6 +262,7 @@ async function processOutboxTick(): Promise<void> {
           .set({
             lastSeenAt: now,
             consecutiveFailures: 0,
+            consecutiveAuthFailures: 0,
           })
           .where(eq(schema.federationPeers.id, peerId))
           .run();