Refactor database configuration and user management

- Updated .env.example to consolidate SQL Server credentials under PANEL_MSSQL_* variables.
- Removed deprecated docker-compose.postgres.yml file.
- Adjusted docker-compose.yml to utilize new SQL Server credential structure.
- Enhanced README.md with Docker build and push instructions.
- Refined database schema in schema.sql to align with new user and permission structures.
- Updated init-database.js to reflect changes in user and session table names.
- Modified user management functions in users.ts to accommodate new database schema.
- Streamlined API routes to utilize PostgreSQL for user and database management.
- Improved error handling and logging in various server routes.

README.md

@@ -14,6 +14,20 @@ Este proyecto es una migración moderna del panel de control legacy `TransmitirA
 - **Node.js**: v18 o superior.
 - **SQL Server**: Acceso a las instancias de base de datos definidas en `.env`.
 
+```bash
+docker build \
+  -t dev.aduanasoft.com:8443/databases_a24c/frontend:latest \
+  -f ./Dockerfile \
+  ./
+```
+
+Subirlas a harbor
+
+```
+docker login dev.aduanasoft.com:8443
+docker push dev.aduanasoft.com:8443/databases_a24c/frontend:latest
+```
+
 ## Configuración
 
 1.  **Instalar dependencias**: