Upgrade Go toolchain and golang.org/x/* deps to 1.24.10, standardize GitHub Actions to derive Go version from go.mod and adjust checkout ordering, raise WASM size limit to 55 MB, update FreeBSD tarball and gomobile refs, fix a few format-string/logging calls, treat usernames ending with $ as system accounts, and add Windows tests.
Disable pidfd check on Android 11 and below
On Android 11 (SDK <= 30) and earlier, pidfd-related system calls
are blocked by seccomp policies, causing SIGSYS crashes.
This change overrides `checkPidfdOnce` to return an error on
affected versions, preventing the use of unsupported pidfd features.
