feat(agent): add contactedAt attribute to agent

internal/auth/agent/authenticator.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"net/http"
 	"strings"
+	"time"
 
 	"forge.cadoles.com/Cadoles/emissary/internal/auth"
 	"forge.cadoles.com/Cadoles/emissary/internal/datastore"
@@ -76,6 +77,13 @@ func (a *Authenticator) Authenticate(ctx context.Context, r *http.Request) (auth
 		return nil, errors.WithStack(err)
 	}
 
+	contactedAt := time.Now()
+
+	agent, err = a.repo.Update(ctx, agent.ID, datastore.WithAgentUpdateContactedAt(contactedAt))
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+
 	user := &User{
 		agent: agent,
 	}