feat(udt-001): db schema for Usuario with admin seed

database/seeds/S001__seed_admin.sql

@@ -0,0 +1,30 @@
+-- S001__seed_admin.sql
+-- Seeds the default admin user for SIG-CM2
+-- BCrypt hash of '@Diego550@' at cost 12
+-- Generated: 2026-04-13
+
+SET QUOTED_IDENTIFIER ON;
+SET ANSI_NULLS ON;
+SET NOCOUNT ON;
+GO
+
+IF NOT EXISTS (SELECT 1 FROM dbo.Usuario WHERE Username = 'admin')
+BEGIN
+    INSERT INTO dbo.Usuario (Username, PasswordHash, Nombre, Apellido, Email, Rol, PermisosJson, Activo)
+    VALUES (
+        'admin',
+        '$2a$12$rmq6tlSAQ8WXhR2CwLCSeuwCJKz/.8Eab95UQCUNfwe4dokeOqMcW',
+        'Administrador',
+        'Sistema',
+        NULL,
+        'admin',
+        '["*"]',
+        1
+    );
+    PRINT 'Admin user seeded successfully.';
+END
+ELSE
+BEGIN
+    PRINT 'Admin user already exists — skipping.';
+END
+GO