fix(printer): 修复A1打印发送，绕过bambulabs_api的ftp URL问题，改用sdcard路径

a1_swap_mod_packer/i18n/en.json

@@ -75,7 +75,7 @@
   "gui.output.printer.ip": "IP Address",
   "gui.output.printer.access_code": "Access Code",
   "gui.output.printer.serial": "Serial",
-  "gui.output.printer.send.tooltip": "Send the generated 3MF to an A1 printer over LAN and start printing",
+  "gui.output.printer.send.tooltip": "Send the generated 3MF to an A1 printer over LAN and start printing (LAN only — computer and printer must be on the same local network)",
 
   "gui.dialog.individual_batch.title": "Individual Batch Mode",
   "gui.dialog.individual_batch.text": "Individual batch mode treats every input row as a separate build.\n\nExample: if you add 20 single-plate 3MF files and set copies to 5, Build 3MF will create 20 separate packed files. Each output contains only that source file repeated 5 times.\n\nThis is useful for quickly batch-converting many independent 3MF jobs into multi-copy SwapMod packs. It does not combine all input files into one 3MF.",