platform/backends/ had become a flat dump of 15 per-model torch_<model>.py
adapters next to the genuinely-shared infra. Each adapter is referenced from
its card by a plain 'module:Class' string loaded via importlib, so there was
no real coupling forcing it into platform/ — the Cosmos/Flux/etc adapter
belongs WITH its recipe (card/loop/program).
Move each torch_<model>.py -> v2/recipes/<model>/adapter.py and flip the card
strings to v2.recipes.<model>.adapter:<Class>. backends/ now holds only the
shared substrate (torch_backend base, torch_cuda registration, torch_kernels,
toy/cpu/accel). Each recipe is now a self-contained package.
Cross-refs updated: gen3c/adapter imports CosmosT5Encoder from cosmos2/adapter;
sd35/program + stable_audio/card import from their own package. Recipes still
import torch-free (adapters pulled only via the string on a GPU box) — CPU mini
holds 237 passed / 5 pre-existing (bucket_c torch-absent). pre-commit clean.
SolitaryThinker
ba83e9bef7