Revert "Feat: Reforma de unificación de bases de datos."

This reverts commit 32cf2ba74a.

# Conflicts:
#	Backend/MotoresArgentinosV2.API/Program.cs

Backend/MotoresArgentinosV2.API/Program.cs

@@ -39,8 +39,6 @@ builder.Services.AddCors(options =>
 });
 
 // FORWARDED HEADERS (CRÍTICO PARA DOCKER/NGINX)
-// Por defecto, .NET solo confía en localhost. En Docker, Nginx tiene otra IP.
-// Debemos limpiar las redes conocidas para que confíe en el proxy interno de Docker.
 builder.Services.Configure<ForwardedHeadersOptions>(options =>
 {
     options.ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto;
@@ -55,18 +53,15 @@ builder.Services.AddRateLimiter(options =>
 
     options.GlobalLimiter = PartitionedRateLimiter.Create<HttpContext, string>(context =>
     {
-        // En producción detrás de Nginx, RemoteIpAddress será la IP real del usuario.
-        // Si por alguna razón falla (ej: conexión directa local), usamos "unknown".
         var remoteIp = context.Connection.RemoteIpAddress?.ToString() ?? "unknown";
 
-        // Si es Loopback (localhost), sin límites (útil para dev)
         if (System.Net.IPAddress.IsLoopback(context.Connection.RemoteIpAddress!))
         {
             return RateLimitPartition.GetNoLimiter("loopback");
         }
 
         return RateLimitPartition.GetFixedWindowLimiter(
-            partitionKey: remoteIp, // Clave correcta: IP del usuario
+            partitionKey: remoteIp,
             factory: _ => new FixedWindowRateLimiterOptions
             {
                 AutoReplenishment = true,
@@ -78,7 +73,6 @@ builder.Services.AddRateLimiter(options =>
 
     options.AddPolicy("AuthPolicy", context =>
     {
-        // Si es localhost, SIN LÍMITES (Evita auto-bloqueo en desarrollo)
         var remoteIp = context.Connection.RemoteIpAddress;
         if (remoteIp != null && System.Net.IPAddress.IsLoopback(remoteIp))
         {
@@ -100,9 +94,13 @@ builder.Services.Configure<HostOptions>(options =>
     options.BackgroundServiceExceptionBehavior = BackgroundServiceExceptionBehavior.Ignore;
 });
 
-// DB CONTEXTS (Legacy unificado en eldia)
+// DB CONTEXTS
+builder.Services.AddDbContext<InternetDbContext>(options =>
+    options.UseSqlServer(builder.Configuration.GetConnectionString("Internet")));
+
 builder.Services.AddDbContext<EldiaDbContext>(options =>
     options.UseSqlServer(builder.Configuration.GetConnectionString("eldia")));
+
 builder.Services.AddDbContext<MotoresV2DbContext>(options =>
     options.UseSqlServer(builder.Configuration.GetConnectionString("MotoresV2"),
     sqlOptions => sqlOptions.EnableRetryOnFailure()));
@@ -144,7 +142,6 @@ builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
         {
             OnMessageReceived = context =>
             {
-                // Buscar el token en la cookie llamada "accessToken"
                 var accessToken = context.Request.Cookies["accessToken"];
                 if (!string.IsNullOrEmpty(accessToken))
                 {
@@ -175,11 +172,7 @@ app.Use(async (context, next) =>
     context.Response.Headers.Append("X-Content-Type-Options", "nosniff");
     context.Response.Headers.Append("Referrer-Policy", "strict-origin-when-cross-origin");
     context.Response.Headers.Append("X-XSS-Protection", "1; mode=block");
-
-    // Permissions-Policy: Bloquear funcionalidades sensibles del navegador no usadas
     context.Response.Headers.Append("Permissions-Policy", "accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=()");
-
-    // CSP adaptada para permitir pagos en Payway y WebSockets de Vite
     string csp = "default-src 'self'; " +
                  "img-src 'self' data: https: blob:; " +
                  "script-src 'self' 'unsafe-inline'; " +
@@ -190,7 +183,6 @@ app.Use(async (context, next) =>
                  "form-action 'self' https://developers-ventasonline.payway.com.ar; " +
                  "frame-ancestors 'none';";
     context.Response.Headers.Append("Content-Security-Policy", csp);
-
     context.Response.Headers.Remove("Server");
     context.Response.Headers.Remove("X-Powered-By");
     await next();
@@ -204,7 +196,6 @@ if (app.Environment.IsDevelopment())
 }
 else
 {
-    // 🔒 HSTS en Producción
     app.UseHsts();
 }
 

Backend/MotoresArgentinosV2.Infrastructure/Data/InternetDbContext.cs

@@ -0,0 +1,36 @@
+// Backend/MotoresArgentinosV2.Infrastructure/Data/InternetDbContext.cs
+using Microsoft.EntityFrameworkCore;
+using MotoresArgentinosV2.Core.DTOs;
+
+namespace MotoresArgentinosV2.Infrastructure.Data;
+
+/// <summary>
+/// Contexto de Entity Framework para la base de datos Internet (legacy)
+/// Servidor: ...
+/// Base de Datos: internet
+/// Propósito: Acceso a datos de avisos web
+/// </summary>
+public class InternetDbContext : DbContext
+{
+    public InternetDbContext(DbContextOptions<InternetDbContext> options) : base(options)
+    {
+    }
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        base.OnModelCreating(modelBuilder);
+
+        // Registrar el DTO como entidad sin llave (Keyless) para que SqlQueryRaw funcione bien
+        modelBuilder.Entity<DatosAvisoDto>(e =>
+        {
+            e.HasNoKey();
+            e.ToView(null); // No mapea a tabla
+
+            // Configurar precisión de decimales para silenciar warnings
+            e.Property(p => p.ImporteSiniva).HasColumnType("decimal(18,2)");
+            e.Property(p => p.ImporteTotsiniva).HasColumnType("decimal(18,2)");
+            e.Property(p => p.PorcentajeCombinado).HasColumnType("decimal(18,2)");
+            e.Property(p => p.Centimetros).HasColumnType("decimal(18,2)");
+        });
+    }
+}

Backend/MotoresArgentinosV2.Infrastructure/Services/AvisosLegacyService.cs

@@ -10,10 +10,10 @@ namespace MotoresArgentinosV2.Infrastructure.Services;
 
 public class AvisosLegacyService : IAvisosLegacyService
 {
-    private readonly EldiaDbContext _context;
+    private readonly InternetDbContext _context;
     private readonly ILogger<AvisosLegacyService> _logger;
 
-    public AvisosLegacyService(EldiaDbContext context, ILogger<AvisosLegacyService> logger)
+    public AvisosLegacyService(InternetDbContext context, ILogger<AvisosLegacyService> logger)
     {
         _context = context;
         _logger = logger;

Backend/MotoresArgentinosV2.Infrastructure/Services/LegacyPaymentService.cs

@@ -20,7 +20,7 @@ public class LegacyPaymentService : ILegacyPaymentService
 
     public LegacyPaymentService(IConfiguration config, MotoresV2DbContext v2Context, ILogger<LegacyPaymentService> logger)
     {
-        _internetConn = config.GetConnectionString("eldia") ?? "";
+        _internetConn = config.GetConnectionString("Internet") ?? "";
         _v2Context = v2Context;
         _config = config;
         _logger = logger;

Backend/MotoresArgentinosV2.Infrastructure/Services/UsuariosLegacyService.cs

@@ -9,10 +9,10 @@ namespace MotoresArgentinosV2.Infrastructure.Services;
 
 public class UsuariosLegacyService : IUsuariosLegacyService
 {
-    private readonly EldiaDbContext _context;
+    private readonly InternetDbContext _context;
     private readonly ILogger<UsuariosLegacyService> _logger;
 
-    public UsuariosLegacyService(EldiaDbContext context, ILogger<UsuariosLegacyService> logger)
+    public UsuariosLegacyService(InternetDbContext context, ILogger<UsuariosLegacyService> logger)
     {
         _context = context;
         _logger = logger;