Initial commit: Fleet Management app with security hardening and background launcher

- Flask app with SQLAlchemy, Flask-Login, Flask-Mail
- Admin/owner roles, vessel management, charters, work orders
- Background launcher (Iniciar.vbs) runs server without terminal window
- Root redirect fixed: / → /login
- debug=False, use_reloader=False for pythonw.exe compatibility

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

iniciar.bat

@@ -0,0 +1,16 @@
+@echo off
+cd /d "%~dp0"
+call venv\Scripts\activate.bat
+
+echo ========================================
+echo  FLEET MANAGEMENT SYSTEM
+echo  http://localhost:5010
+echo  Ctrl+C para detener
+echo ========================================
+echo.
+
+:: Abrir browser despues de 2 segundos
+start "" /b cmd /c "timeout /t 2 /nobreak >nul && start http://localhost:5010"
+
+python run.py
+pause