Extract PR #46's manual structural-diff technique into reusable bin/structural_diff tooling - #55

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jnasbyupgrade:structural-diff-tooling

Commits on Jul 30, 2026

Add bin/structural_diff, a reusable structural comparison tool, and wire it into bin/test_existing's update-scenario/update-check flows.

jnasbyupgrade
and
claude
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Fix a real type-ACL divergence the new structural_diff tool surfaced, and stop asserting fresh-parity at a landing point that can never reach it

jnasbyupgrade
and
claude
committed
Stop touching the already-tagged 0.2.3 release; converge the type-ACL fix forward into 0.2.3->0.3.0 instead.

jnasbyupgrade
and
claude
committed