Add golden file tests#249

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micahhahn wants to merge 9 commits intoelm-explorations:masterfrom

NoRedInk:add-golden-file-tests

Commits on Jul 31, 2025

Add `equalToFile` to Expect
micahhahn
committed

Commits on Aug 1, 2025

Commits on Oct 23, 2025

Commits on Oct 27, 2025

Commits on Nov 5, 2025

Write a ".failed" file next to the golden file instead of in temp
micahhahn
committed

Commits on Nov 6, 2025

Bring the file deletion into Elm land
micahhahn
committed