Fix ROM protection bug - immediate PRINT now works!

ROOT CAUSE: ROM protection was blocking writes to $0800-$FFF0, but
MS-BASIC legitimately writes to addresses in that range ($270B-$270F)
for temporary string storage during immediate mode PRINT.

Changes:
- Remove ROM write protection from ZCL_CPU_6502_BUS_BASIC
- Remove ROM write hooks from test_basic.py setup_basic_hooks()
- Update console font to Consolas/Monaco monospace
- Add acknowledgment to Scott Hanselman for MS-BASIC preservation
- Add vibing-steampunk link to README credits

The "ROM" is actually loaded into RAM and MS-BASIC expects writable
memory - this is common in 6502-era software which used self-modifying
code and embedded work areas.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>