feat(hid): add G13 vendor-page HID probe

[RaapTechllc]

Summary

• add the bosun-hid g13_probe diagnostic example
• match the G13 by VID/PID and vendor usage page before opening it
• print raw report lengths and bytes with an idle heartbeat

Why

This is the smallest live M1 R1 path for verifying whether raw G13 reports can be read while Logitech Gaming Software is active. It does not implement the production transport or CLI.

Verification

• cargo fmt --all -- --check
• cargo clippy --workspace --all-targets --all-features -- -D warnings
• cargo test --workspace --all-features
• git diff --check
• probe finds 046D:C21C on usage page 0xFF00 and opens the shared interface
• capture changed reports with LGS active or closed during the next hardware session

Scope

No device watch, Keychron support, binding UI, or other later-milestone behavior is included.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-08-31T12:15:06.495910Z	a7eab5e	PR opened

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