Add build.sh for building all FusionX components: Z80 assembly ROMs,
TZFS ROMs, CP/M variants, kernel modules, user-space apps, and CPLD
bitstreams. Supports selective builds via --asm/--tzfs/--cpm/--drivers/
--cpld flags. Updated rebuilt binaries from build verification.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
e3771cdf9c