v0.2.1: Charge limit toggle, acpi_call installer, system partition lock

Decky Loader plugin that toggles the Legion Go (1st gen) 80% battery charge limit on SteamOS.

Features

• One-toggle 80% charge limit with a firmware read-back
• Setting is re-applied at boot, after resume, and every 5 minutes while enabled
• Built-in acpi_call installer (SteamOS doesn't ship the module)
• Toggle to lock/unlock the SteamOS system partition

Install
Download legion-go-charge-limit.zip, then in Decky go to
Settings → Developer → Install plugin from ZIP file.

Notes

• Tested on a Legion Go (1st gen) on SteamOS only
• SteamOS updates remove acpi_call; press Install acpi_call again afterwards
• Don't use with hhd's charge-limit setting

See the README for usage and troubleshooting.