Swap the abandoned nodejs-mobile Node 12.19 runtime for the nodejs-mobile core
Node 18.20.4 Android build, staged into the plugin by install-node18-runtime.sh
(the cordova fork's Android side is still Node 12). Re-register the cordova-bridge
linked binding via explicit napi_module_register(NM_F_LINKED), since Node 18's
NAPI_MODULE_X macro drops the flag and process._linkedBinding could no longer
find it. Verified on the x86_64 emulator: process.version=v18.20.4 and a full
native<->node channel round-trip (device encryption key delivered).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>