diff --git a/.github/workflows/main_smartwallet.yml b/.github/workflows/main_smartwallet.yml
index b189f19..07b5461 100644
--- a/.github/workflows/main_smartwallet.yml
+++ b/.github/workflows/main_smartwallet.yml
@@ -74,8 +74,8 @@ jobs:
         run: dotnet ef database update --startup-project ../SmartWallet.API
         env:
           ASPNETCORE_ENVIRONMENT: Production
-          JWT_SECRET: ${{ secrets.JWT_SECRET }}
-          DB_PATH: ${{ secrets.DB_PATH }}
+          Jwt__Key: ${{ secrets.JWT_SECRET }}
+          ConnectionStrings__DefaultConnection: ${{ secrets.AZURE_SQL_CONNECTION }}
 
       - name: Deploy to Azure Web App
         id: deploy-to-webapp
@@ -85,4 +85,5 @@ jobs:
           slot-name: 'Production'
           package: ./publish
         env:
-          DB_PATH: ${{ secrets.DB_PATH }}
+          ConnectionStrings__DefaultConnection: ${{ secrets.AZURE_SQL_CONNECTION }}
+          Jwt__Key: ${{ secrets.JWT_SECRET }}
diff --git a/src/SmartWallet.API/Program.cs b/src/SmartWallet.API/Program.cs
index 4949109..fbc8b82 100644
--- a/src/SmartWallet.API/Program.cs
+++ b/src/SmartWallet.API/Program.cs
@@ -3,11 +3,14 @@
 var builder = WebApplication.CreateBuilder(args);
 
 // --- validar configuración ---
-var jwtSecret = builder.Configuration["Jwt:Key"];
-var dbPath = builder.Configuration.GetConnectionString("DefaultConnection");
+var jwtSecret = Environment.GetEnvironmentVariable("JWT_SECRET")
+                ?? builder.Configuration["Jwt:Key"];
 
-if (string.IsNullOrEmpty(jwtSecret) || string.IsNullOrEmpty(dbPath))
-    throw new InvalidOperationException("Faltan variables en configuración: Jwt:Key o ConnectionStrings:DefaultConnection.");
+var connectionString = builder.Configuration.GetConnectionString("DefaultConnection");
+
+// --- setear variables en configuracion ---
+builder.Configuration["Jwt:Key"] = jwtSecret;
+builder.Configuration["ConnectionStrings:DefaultConnection"] = connectionString;
 
 // --- servicios ---
 builder.Services.AddControllers();
@@ -16,6 +19,13 @@
 
 var app = builder.Build();
 
+// --- validar configuración ---
+if (!app.Environment.IsDevelopment())
+{
+    if (string.IsNullOrEmpty(jwtSecret) || string.IsNullOrEmpty(connectionString))
+        throw new InvalidOperationException("Faltan variables en configuración: Jwt:Key o ConnectionStrings:DefaultConnection.");
+}
+
 // --- pipeline ---
 if (app.Environment.IsDevelopment())
 {
diff --git a/src/SmartWallet.API/appsettings.Development.json b/src/SmartWallet.API/appsettings.Development.json
index 6fd1860..ba09f23 100644
--- a/src/SmartWallet.API/appsettings.Development.json
+++ b/src/SmartWallet.API/appsettings.Development.json
@@ -1,6 +1,6 @@
 {
   "ConnectionStrings": {
-    "DefaultConnection": "Server=localhost\\SQLEXPRESS;Database=SmartWallet;Trusted_Connection=True;MultipleActiveResultSets=true;TrustServerCertificate=True;"
+    "DefaultConnection": "Server=localhost;Database=SmartWallet;Trusted_Connection=True;MultipleActiveResultSets=true;TrustServerCertificate=True;"
   },
   "Jwt": {
     "Key": "Qk1jY3h0b0p6c0ZkZ1ZyZ1p6d1d6d1p3c1Z6d1p3c1d6d1p3c1Z6d1p3c1d6d1p3c1Z6d1p3c1d6d1p3c1Z6d1p3c1d6d1p3c1Z6d1p3c1d6d1p3c1Z6d1p3c1d6d1p3c1Z6d1p3c1d6d1p3c1Z6d1p3",
diff --git a/src/SmartWallet.API/appsettings.json b/src/SmartWallet.API/appsettings.json
index a3c9a39..77ab19f 100644
--- a/src/SmartWallet.API/appsettings.json
+++ b/src/SmartWallet.API/appsettings.json
@@ -1,6 +1,6 @@
 {
   "ConnectionStrings": {
-    "DefaultConnection": "${DB_PATH}"
+    "DefaultConnection": ""
   },
   "Jwt": {
     "Key": "${JWT_SECRET}",
@@ -51,6 +51,6 @@
       "DurationOfBreakInSeconds": 100
     }
   }
-  
+
 
 }
diff --git a/src/SmartWallet.Domain/Entities/Wallet.cs b/src/SmartWallet.Domain/Entities/Wallet.cs
index 42a5dd2..02e5875 100644
--- a/src/SmartWallet.Domain/Entities/Wallet.cs
+++ b/src/SmartWallet.Domain/Entities/Wallet.cs
@@ -32,9 +32,9 @@ public class Wallet
 
 
     // Navegaciones inversas
-    public ICollection<TransactionLedger> SourceLedgers { get; private set; } = new List<TransactionLedger>();
-    public ICollection<TransactionLedger> DestinationLedgers { get; private set; } = new List<TransactionLedger>();
-    public ICollection<Transaction> ReceivedTransfers { get; private set; } = new List<Transaction>();
+    public ICollection<Transaction> Transactions { get; private set; } = new List<Transaction>(); // origen
+    public ICollection<Transaction> ReceivedTransfers { get; private set; } = new List<Transaction>(); // destino
+    public ICollection<TransactionLedger> TransactionLedgers { get; private set; } = new List<TransactionLedger>(); // asientos
 
 
     // --- constructores ---
diff --git a/src/SmartWallet.Infrastructure/SmartWalletDbContext.cs b/src/SmartWallet.Infrastructure/SmartWalletDbContext.cs
index 921cb9f..abcbbc9 100644
--- a/src/SmartWallet.Infrastructure/SmartWalletDbContext.cs
+++ b/src/SmartWallet.Infrastructure/SmartWalletDbContext.cs
@@ -21,41 +21,59 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
         {
             base.OnModelCreating(modelBuilder);
 
-            // --- transaction ---
+            // --- Transaction ---
             modelBuilder.Entity<Transaction>(entity =>
             {
                 entity.HasKey(t => t.Id);
 
                 entity.Property(t => t.Amount)
-                      .HasColumnType("decimal(18,2)");
+                      .HasColumnType("decimal(18,2)")
+                      .IsRequired();
 
+                entity.Property(t => t.CurrencyCode).IsRequired();
+                entity.Property(t => t.Type).IsRequired();
+                entity.Property(t => t.Status).IsRequired();
+                entity.Property(t => t.CreatedAt).IsRequired();
+
+                // relación con Wallet origen
                 entity.HasOne(t => t.Wallet)
-                      .WithMany()
+                      .WithMany(w => w.Transactions)
                       .HasForeignKey(t => t.WalletId)
                       .OnDelete(DeleteBehavior.Restrict);
 
+                // relación con Wallet destino
                 entity.HasOne(t => t.DestinationWallet)
                       .WithMany(w => w.ReceivedTransfers)
                       .HasForeignKey(t => t.DestinationWalletId)
                       .OnDelete(DeleteBehavior.Restrict);
             });
 
-            // --- transactionLedger ---
+            // --- TransactionLedger ---
             modelBuilder.Entity<TransactionLedger>(entity =>
             {
                 entity.HasKey(l => l.Id);
 
                 entity.Property(l => l.Amount)
-                      .HasColumnType("decimal(18,2)");
+                      .HasColumnType("decimal(18,2)")
+                      .IsRequired();
+
+                entity.Property(l => l.CurrencyCode).IsRequired();
+                entity.Property(l => l.Type).IsRequired();
+                entity.Property(l => l.Status).IsRequired();
+                entity.Property(l => l.Timestamp).IsRequired();
 
+                // relación con Wallet
                 entity.HasOne(l => l.Wallet)
-                      .WithMany()
-                      .HasForeignKey(l => l.WalletId)
+                      .WithMany(w => w.TransactionLedgers)
                       .HasForeignKey(l => l.WalletId)
                       .OnDelete(DeleteBehavior.Restrict);
             });
 
-            modelBuilder.Seed(); // Llamada al método de extensión para sembrar datos
+            // --- seed inicial ---
+            modelBuilder.Seed();
         }
+
+
+
     }
 }