feat: Add SQLite database support with MySQL compatibility

SQLiteConnection.cs

@@ -0,0 +1,68 @@
+using Microsoft.Data.Sqlite;
+using Microsoft.Extensions.Logging;
+using System.Data;
+
+namespace WeaponPaints
+{
+	public class SQLiteConnection : IDatabaseConnection
+	{
+		private readonly Microsoft.Data.Sqlite.SqliteConnection _connection;
+		private readonly ILogger _logger;
+
+		public SQLiteConnection(string connectionString, ILogger logger)
+		{
+			_connection = new Microsoft.Data.Sqlite.SqliteConnection(connectionString);
+			_logger = logger;
+		}
+
+		public async Task OpenAsync()
+		{
+			try
+			{
+				await _connection.OpenAsync();
+			}
+			catch (Exception ex)
+			{
+				_logger.LogError($"Unable to connect to SQLite database: {ex.Message}");
+				throw;
+			}
+		}
+
+		public async Task CloseAsync()
+		{
+			await _connection.CloseAsync();
+		}
+
+		public async Task<IDbTransaction> BeginTransactionAsync()
+		{
+			return await _connection.BeginTransactionAsync();
+		}
+
+		public Task CommitTransactionAsync(IDbTransaction transaction)
+		{
+			transaction.Commit();
+			return Task.CompletedTask;
+		}
+
+		public Task RollbackTransactionAsync(IDbTransaction transaction)
+		{
+			transaction.Rollback();
+			return Task.CompletedTask;
+		}
+
+		public IDbConnection GetConnection()
+		{
+			return _connection;
+		}
+
+		public void Dispose()
+		{
+			_connection?.Dispose();
+		}
+
+		public async ValueTask DisposeAsync()
+		{
+			await _connection.DisposeAsync();
+		}
+	}
+}