39/40 tests pass. The native reader works for integers, hexadecimal, lists, strings and quote forms. The one failure is symbol comparison (known limitation).
Based on the context summary and the user's note about cleanup, I should:
1. Continue Phase 3.5 self-compilation
2. Clean up the repo structure
Let me first update the todo list and then investigate the SIGKILL issue more
thoroughly. The issue is that combining reader source with file I/O code causes
the executable to be killed. Let me check if buffer-to-string with reader
works:
Let me test specifically reader + file I/O combined (which is what the
self-hosting test needs):