Add gamepad support to the desktop build

Co-Authored-By: deepseek-v4.1-flash (opencode-go) via CodeCraft

Cargo.toml

@@ -26,7 +26,8 @@ inherits = "release"
 lto = "thin"
 codegen-units = 16
 
-# desktop builds: system file dialog (xdg portal on Linux) and sound output
+# desktop builds: system file dialog (xdg portal on Linux), sound output and gamepads
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 rfd = { version = "0.17", default-features = false, features = ["xdg-portal"] }
 cpal = "0.18"
+gilrs = "0.11"