Fix database connection handling in AlquilaFacilContext

Improved error handling when loading database connection,
replaced custom context class with Dictionary<string,string>,
and added null checks for safer configuration.

Entidades/AlquilaFacilContext.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Text.Json;
+
 using Microsoft.EntityFrameworkCore;
 
 namespace Entidades;
@@ -54,17 +55,30 @@ public partial class AlquilaFacilContext : DbContext
 
     public virtual DbSet<Venta> Ventas { get; set; }
 
-    private class context
-    {
-        public string connectiondb { get; set; } = "";
-    }
-
     protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
     {
-        context connection = JsonSerializer.Deserialize<context>(File.ReadAllText("settings.json")) ?? new();
+        if (!optionsBuilder.IsConfigured)
-        optionsBuilder.UseMySQL(connection.connectiondb);
+        {
+            try
+            {
+                var jsonContent = File.ReadAllText("settings.json");
+                var options = JsonSerializer.Deserialize<Dictionary<string, string>>(jsonContent);
+                if (options != null && options.ContainsKey("connectiondb"))
+                {
+                    optionsBuilder.UseMySQL(options["connectiondb"]);
+                }
+                else
+                {
+                    throw new Exception("No se encontró la clave 'connectiondb' en el archivo settings.json");
+                }
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Error al configurar la conexión a la base de datos: {ex.Message}");
+                throw;
+            }
+        }
     }
-
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
         modelBuilder.Entity<Canon>(entity =>
@@ -119,6 +133,9 @@ public partial class AlquilaFacilContext : DbContext
             entity.Property(e => e.Email)
                 .HasMaxLength(50)
                 .HasColumnName("email");
+            entity.Property(e => e.EmailRecuperacion)
+                .HasMaxLength(50)
+                .HasColumnName("emailRecuperacion");
             entity.Property(e => e.Habilitado)
                 .HasDefaultValueSql("b'1'")
                 .HasColumnType("bit(1)")