Show ban and note count in ahelp window (#15328)

Content.Server/Database/ServerDbSqlite.cs

@@ -97,6 +97,22 @@ namespace Content.Server.Database
                 .ToList()!;
         }
 
+        public override async Task<int> CountServerBansAsync(IPAddress? address, NetUserId? userId, ImmutableArray<byte>? hwId, bool includeUnbanned)
+        {
+            await using var db = await GetDbImpl();
+
+            var exempt = await GetBanExemptionCore(db, userId);
+
+            // SQLite can't do the net masking stuff we need to match IP address ranges.
+            // So just pull down the whole list into memory.
+            var queryBans = await GetAllBans(db.SqliteDbContext, includeUnbanned, exempt);
+
+            return queryBans
+                .Where(b => BanMatches(b, address, userId, hwId))
+                .Select(ConvertBan)
+                .Count();
+        }
+
         private static async Task<List<ServerBan>> GetAllBans(
             SqliteServerDbContext db,
             bool includeUnbanned,