Track rule reading in database, don't show popup locally (#7278)

Content.Server.Database/Migrations/Postgres/PostgresServerDbContextModelSnapshot.cs

@@ -387,6 +387,10 @@ namespace Content.Server.Database.Migrations.Postgres
                         .HasColumnType("timestamp with time zone")
                         .HasColumnName("first_seen_time");
 
+                    b.Property<DateTime?>("LastReadRules")
+                        .HasColumnType("timestamp with time zone")
+                        .HasColumnName("last_read_rules");
+
                     b.Property<IPAddress>("LastSeenAddress")
                         .IsRequired()
                         .HasColumnType("inet")