68880101

Restructure `pathway-system`

This does a lot of restructuring:

- adds `pathway-compat-*` libs for multi-layer wrappers over `base`, `directory`, and `filepath`;
- adds `variant`-based open sum types for recovering `IO` errors; and
- has `pathway-system` depend on the new `pathway-compat-*` packages.

Suite timing

Time to Start Worker time Duration Time to finish
Config 0s 1s 1s 2s
Eval 2s 2m00s 2m00s 2m02s
Build 7s 4m41s 59s 1m06s
Test - - - -
Deploy - - - -
Suite 0s 6m43s 2m02s 2m02s

Timeline

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