Major updates: Setup environment, database, permissions and admin access

- Created virtual environment and installed requirements
- Set up MariaDB database with user 'sa' and database 'recticel'
- Created order_for_labels table for printing functionality
- Implemented role-based permissions system with admin role
- Added admin access to print label modules and etichete functionality
- Fixed template routing issues in main_page_etichete.html
- Updated app to run on port 8781 with network access (0.0.0.0)
- Added systemd service file for background deployment
- Created installation documentation

py_app/app/db_create_scripts/recreate_order_for_labels_table.py

@@ -2,10 +2,10 @@ import mariadb
 
 # Database connection credentials
 DB_CONFIG = {
-    "user": "trasabilitate",
-    "password": "Initial01!",
+    "user": "sa",
+    "password": "12345678",
     "host": "localhost",
-    "database": "trasabilitate_database"
+    "database": "recticel"
 }
 
 def recreate_order_for_labels_table():