Add optional Mieru (mita v3.28.0) install per server with mierus:// share links.

EOF

Co-authored-by: Cursor <cursoragent@cursor.com>

managers/backup_manager.py

@@ -70,6 +70,9 @@ class BackupManager:
             remote_dir = inst_path('/opt/amnezia/naiveproxy')
             paths['host'] = [remote_dir]
             paths['container'] = ['/etc/caddy']
+        elif base == 'mieru':
+            remote_dir = inst_path('/opt/amnezia/mieru')
+            paths['host'] = [remote_dir]
         elif base == 'dns':
             paths['host'] = ['/opt/amnezia/dns']
             paths['container'] = ['/opt/amnezia/dns']