v3.2.6 — transformers pin (fixes crash on every generation)

Fixes the crash on every generation

Fresh installs after transformers 5.13.0 released (~Jul 9) failed on every generation with 'str' object has no attribute '__module__' (or the downstream Model not loaded. Call load() first.). Root cause: mlx-lm 0.31.1 requires transformers>=5.0.0 with no upper bound, so the installer pulled 5.13.0 — which breaks mlx_lm.tokenizer_utils, so the Gemma text-encoder silently no-ops.

The fix: install.js now pins transformers>=5.0.0,<5.13.0.

If you're hit by this: just click Update in Pinokio — it re-runs the installer and downgrades transformers to a working version. No manual steps.

Fixes #40, #38, #37, #33. Thanks to @saved-j and @xandreau for the diagnosis.