added https for client and managment

backend/.env.example

@@ -7,6 +7,10 @@ RESTIC_KEEP_HOURLY=0
 RESTIC_KEEP_DAILY=7
 RESTIC_KEEP_WEEKLY=0
 RESTIC_KEEP_MONTHLY=0
+HOST="0.0.0.0"
 PORT=3000
 API_TOKEN="change-me-to-at-least-32-characters"
+HTTPS_ENABLED=false
+TLS_CERT_FILE=""
+TLS_KEY_FILE=""
 ALLOWED_MANAGEMENT_IPS=""