Version bump and multi-account/IP ban fixes

Bump version to 1.7.9a and update package references (CounterStrikeSharp.API, Dapper, System.Linq.Async, ZLinq). Replace usages of PlayerConnectedState.PlayerConnected with PlayerConnectedState.Connected across commands, events, and helpers. Add DB method GetExpireOldPlayerIpsQuery (MySQL/SQLite) and call it to purge old player IP records during ban expiration. Improve CacheManager multi-account/ip ban detection (direct IP bans, cross-account IP checks) and adjust ban logic to respect expiration window. In PlayerManager: reduce semaphore, save player IP to DB before performing ban checks (add SavePlayerIpAddress), and always perform ban checks on connect. Simplify config upgrade logic in Helper.UpdateConfig to update the JSON file Version via JsonNode. Misc: adjust ban sound volume, minor exception catch cleanup, and add module folder to .gitignore.

Modules/CS2-SimpleAdmin_BanSoundModule/CS2-SimpleAdmin_BanSoundModule.cs

@@ -45,7 +45,7 @@ public class CS2_SimpleAdmin_BanSoundModule: BasePlugin
         foreach (var player in Utilities.GetPlayers().Where(p => p.IsValid && !p.IsBot))
         {
             var filter = new RecipientFilter(player);
-            player?.EmitSound("bansound", volume: 0.9f, recipients: filter);
+            player?.EmitSound("bansound", volume: 0.75f, recipients: filter);
         }
     }
 }