Add CyberFly Keyboard (PID 0xCF01)

Register PID 1209:CF01 for the CyberFly BLE mechanical keyboard,
an open-source nRF52840-based keyboard running ZMK firmware.

Add org entry for eggfly.

Author: eggfly

1209/CF01/index.md

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+---
+layout: pid
+title: CyberFly Keyboard
+owner: eggfly
+license: MIT
+site: https://github.com/eggfly/bufferfly_zmk
+source: https://github.com/eggfly/bufferfly_zmk
+---
+CyberFly is a compact BLE mechanical keyboard powered by an nRF52840 (E73-2G4M08S1C module) running ZMK firmware. It features a 6-row QWERTY layout with PlayStation-style function keys, USB-C connectivity, and a built-in Li-battery.

org/eggfly/index.md

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+---
+layout: org
+title: eggfly
+site: https://github.com/eggfly
+---
+An open-source hardware developer focused on custom BLE mechanical keyboards and embedded devices.