Fase 3: Implementación de Listings (Avisos) - Entidades, Repositorio, API y Frontend Wizard integración

src/SIGCM.Infrastructure/Data/DbInitializer.cs

@@ -123,6 +123,37 @@ BEGIN
         FOREIGN KEY (CategoryId) REFERENCES Categories(Id) ON DELETE CASCADE
     );
 END
+
+IF NOT EXISTS (SELECT * FROM sys.tables WHERE name = 'Listings')
+BEGIN
+    CREATE TABLE Listings (
+        Id INT IDENTITY(1,1) PRIMARY KEY,
+        CategoryId INT NOT NULL,
+        OperationId INT NOT NULL,
+        Title NVARCHAR(200) NOT NULL,
+        Description NVARCHAR(MAX) NULL,
+        Price DECIMAL(18,2) NOT NULL DEFAULT 0,
+        Currency NVARCHAR(3) DEFAULT 'ARS',
+        CreatedAt DATETIME2 DEFAULT GETUTCDATE(),
+        Status NVARCHAR(20) DEFAULT 'Draft',
+        UserId INT NULL,
+        FOREIGN KEY (CategoryId) REFERENCES Categories(Id),
+        FOREIGN KEY (OperationId) REFERENCES Operations(Id),
+        FOREIGN KEY (UserId) REFERENCES Users(Id)
+    );
+END
+
+IF NOT EXISTS (SELECT * FROM sys.tables WHERE name = 'ListingAttributeValues')
+BEGIN
+    CREATE TABLE ListingAttributeValues (
+        Id INT IDENTITY(1,1) PRIMARY KEY,
+        ListingId INT NOT NULL,
+        AttributeDefinitionId INT NOT NULL,
+        Value NVARCHAR(MAX) NOT NULL,
+        FOREIGN KEY (ListingId) REFERENCES Listings(Id) ON DELETE CASCADE,
+        FOREIGN KEY (AttributeDefinitionId) REFERENCES AttributeDefinitions(Id) ON DELETE NO ACTION
+    );
+END
 ";
         await connection.ExecuteAsync(schemaSql);
     }