I started the electronics-first schematic and added four parts:
The schematic is unfinished: 4 components, no connections, and 87 floating-pin ERC warnings. USB-C power circuitry, microphone, two buttons, speaker, supporting components, and verification remain to be done; mechanical CAD stays deferred as requested.
I’ve included your 2.4-inch SPI TFT/IPS display in the design scope, but its part number or product link is still needed before committing its power and pinout. The existing specification and enclosure concept have not yet been updated for the display.
Execution stopped because your ACUs ran out.