Phosphene 3.4.2 — pick your H3 steps, plus a community fix wave

Same-day follow-up to 3.4.1 — update in Pinokio:

• H3 Steps control — new pills on the H3 strip: Auto / 12 / 16 / 20. Auto keeps the tuned 9-step point every tier ships with; 20 is the official reference recipe (~2.4× render time, more refinement). Requested by @ivanfioravanti.
• Your bug reports, fixed — this release closes a wave from the tracker:
  • LoRA strength value no longer clipped to a sliver (#45)
  • M1/M2: a Metal-watchdog kill during prompt encoding now auto-retries with a smaller window instead of killing the render (#44)
  • Extend now feeds the model your native render, not the 720p re-encode — and no more subtle aspect squash (#48)
  • Model integrity now catches right-file-wrong-place weights that silently load the wrong model (#36)
  • Character training: the one-click preflight was downloading the QUANTIZED dev transformer — the exact file that trains a dead LoRA — and calling it ready. It now fetches the full-precision copy and refuses to green-light the wrong one (#35)
• Installs self-heal — the "installed another pack and H3/LTX vanished" class is now repaired automatically, weights kept.

Every one of these came from user reports — keep them coming. Full code: https://github.com/mrbizarro/phosphene