wip: better pip crossplatform resolves

[saikonen]

⚠️ Proof-of-Concept. Do not merge ⚠️

for correctly resolving transient dependencies for cross-platform package resolves, where dependencies are conditional on platform/os such as

"nvidia-cuda-runtime-cu12 (==12.4.127) ; platform_system == \"Linux\" and platform_machine == \"x86_64\"",

This intends to solve an issue with packages such as the default torch where resolving on a mac, but deploying onto a linux-64 machine will result in a broken environment due to the conditional dependencies not getting bundled up.

Caveats:
pip has deprecated script wrappers and is pushing for module calls instead. This will make patching the sys values harder, and the current setup is bound to break in the future.

[saikonen]

note that for testing this, both .pip/metadata and conda.manifest local files for the involved flow need to most likely be cleared