opcode-fuzz-v0.3.1

opcode-fuzz v0.3.1 (2026-10-07)

• opcode-fuzz v0.3.1: the recipe loop's first real drive.
  The full extract -> author -> pack -> run -> DARKRUN-diff loop
  works end to end: the swap-and-run synthesised its repro
  fixture, booted DS1 through the repro harness, and computed the
  world-state diff. The drive caught two latent tool bugs, both
  fixed: the synthesised fixture's TOML refused the DOS redirect
  path (DSUN.EXE > d:\dsun.log emitted as an unescaped basic
  string; now a single-quoted literal), and the factory
  DARKRUN.GFF pre-snapshot still looked under the retired
  __support/save/ layout (now the canonical install file). The
  first probe (two gpl byte inc GBYTE[100] sentinels around a
  gpl global ret, swapped into boot candidate GPL-9) booted
  clean and returned an identical-file diff, which settles the
  probe design: VM-state sentinels do not surface in the
  world-state file, so recipes need a world-visible epilogue
  (a gpl request 5 toggle whose visible-object record the world
  file carries) or a save-based diff. The recipe-format decision
  is settled on that evidence: the 15 unnamed gap opcodes are
  Custom-param and best-effort-refused by gpl-asm, so probes wait
  on one encoder feature (raw db <hex> emission), after which
  recipes are plain .asm files and fuzz <opcode> is a thin
  driver. recipes/README.md carries the drive record and the
  decision.