502413b9ab
- Add IOSerial: PL011 (0x0900_0000) TX with FIFO-full polling, yield while waiting - Add Arch/IO.h (32-bit MMIO with DSB) and Arch/CPU.h (yield, WFI) - Extend types.h (e.g. ASCII, Address, Int/UInt aliases) - Wire KernelMain to IOSerialPutString for early boot output - Drop .sourcekit-lsp config; note IO glob in CMake (commented)