Launch Voice Chat globally from the right C152 button

[zhangyibing001]

Summary

• Preserve the existing Codex vendor HID collection and report ID 6 as the first top-level collection, so macOS and the ChatGPT bridge continue to identify Codex Micro by usage page 0xFF00.
• Add a standard keyboard collection on report ID 1.
• Make the right C152 button send Control-Option-Command-V on press and a zeroed release report. This lets the button invoke ChatGPT Voice Chat even when another app is in front, once the same global shortcut is registered in ChatGPT.
• Keep the left ACT10 Push to talk action, Send ACT12 action, analog events, host RPC, and private quota GATT path unchanged.
• Add a host-side keyboard-report test, CI coverage, and English/Chinese setup and architecture documentation.

Setup note

Because this changes the BLE HID report descriptor, existing users must forget Codex Micro in macOS Bluetooth settings and pair it again. If Keyboard Setup Assistant appears, it can be closed.

In ChatGPT, open Settings > Voice > Voice chat hotkey, capture the right-button shortcut, and keep ChatGPT running in the background.

Validation

• All seven native simulator tests pass, including the new Voice Chat keyboard report test.
• pio run -e m5stack-stopwatch succeeds.
• The corrected firmware was flashed to a physical C152, verified against the built image, and emitted CODEX_MICRO_STOPWATCH_READY.
• After a clean macOS re-pair, hidutil reports PrimaryUsagePage 65280 / PrimaryUsage 1.
• IORegistry reports both device usage pairs: vendor 65280/1 and keyboard 1/6, with vendor report ID 6 and keyboard report ID 1.
• End-to-end cross-application Voice Chat launch still requires a manual ChatGPT hotkey capture/runtime test; it is not claimed as automated validation.

No API tokens, account data, or request payloads are stored or transmitted by this change.