Commit Inicial: Se definen tecnologías y modelos de datos.

backend/Data/DapperContext.cs

@@ -0,0 +1,23 @@
+using Microsoft.Data.SqlClient;
+using System.Data;
+
+namespace Inventario.API.Data
+{
+    public class DapperContext
+    {
+        private readonly IConfiguration _configuration;
+        private readonly string _connectionString;
+
+        public DapperContext(IConfiguration configuration)
+        {
+            _configuration = configuration;
+            var connStr = _configuration.GetConnectionString("DefaultConnection");
+            if (connStr is null)
+                throw new ArgumentNullException(nameof(connStr), "ConnectionString 'DefaultConnection' no encontrada.");
+            _connectionString = connStr;
+        }
+
+        public IDbConnection CreateConnection()
+            => new SqlConnection(_connectionString);
+    }
+}