chore: fully implement enterprise audit pkg (#3821)

coderd/database/time.go

@@ -4,5 +4,11 @@ import "time"
 
 // Now returns a standardized timezone used for database resources.
 func Now() time.Time {
-	return time.Now().UTC()
+	return Time(time.Now().UTC())
+}
+
+// Time returns a time compatible with Postgres. Postgres only stores dates with
+// microsecond precision.
+func Time(t time.Time) time.Time {
+	return t.Round(time.Microsecond)
 }