Bump sysinfo 0.38 -> 0.39 (which requires MSRV 1.95) and move the Docker build base and all Launchpad PPA toolchain references to Rust 1.95. No source changes were needed: sysinfo 0.39's only breaking change is the MSRV bump.

Closes #257

* Disable console window for subprocesses on Windows

* fix: drop unused Command imports and add license header

Three std::process::Command imports were left unused after spawn sites moved to new_command, failing cargo clippy -- -D warnings on Linux (tpu_info_runner.rs, hlsmi/process.rs) and macOS (cpu_macos.rs). Also add the Apache license header to the new src/utils/command.rs and fix a doc-comment typo.

* refactor: enforce new_command via clippy lint and widen signature

Add a clippy disallowed-methods rule for std::process::Command::new so any new direct spawn site fails cargo clippy -D warnings (which CI already runs), turning the always-use-new_command convention into an enforced invariant that cannot silently regress the Windows console-window fix (#263). Also widen new_command to accept impl AsRef<OsStr> to match std Command::new.

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Co-authored-by: Jeongkyu Shin <inureyes@gmail.com>

…266)

Replace the self-republished all-smi-luwen-* fork crates with the upstream-published luwen 0.8.5 crates (luwen-api, luwen-pci, luwen-def; luwen-kmd transitive) in the Tenstorrent NPU reader, and remove the obsolete scripts/vendor_all_luwen.sh.

luwen 0.8.x sunset Grayskull and panics when opening one, so the reader detects Grayskull via a sysfs pre-check and skips it (with a catch_unwind defense in depth), keeping the release binary from aborting. Supported architectures are now Wormhole and Blackhole; README and man page updated accordingly.

Closes #265