Classes now build one table per implemented interface, in implements order with
one two-byte entry per interface slot, and a failed class rolls back so a
missing method address is refused instead of dispatching to zero. The MAP gains
one TABLE record per table, and the x128 fixture checks table contents, distinct
per-class tables, both rollback paths, and the exact MAP text.

Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>

Generated programs now have control-flow emission, text and fault output, a
free-list heap, class descriptors, and object construction/deletion. Each
story lands with an x128 fixture and verifier so the runtime stays proven
before the parser drives code generation.

🤖 Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>