* # HID Parsing Logic
The system uses a 1:1 mapping of HID usage IDs to ASCII.
* ## Modifier Handling
Modifiers are bitwise flags. We check for:
- Left Shift: 0x02
- Right Shift: 0x20
*
* ## The Debounce Algorithm
To prevent "chatter," the main.c loop compares the current hid_keyboard_packet_t
against the last_packet. A parse only triggers if the keycode is non-zero
and different from the previous state. */