v0.40.1

Changelog

Fixes

• f0d1e27 fix(build_product): dogfood-cascade hardening — green-tree durability, artifact hygiene, spec-contract grading (#411)

Other

• 1c7766f chore(gitignore): ignore proxied dogfood evidence packs
• 8fc2479 docs(plans): add build_product dogfood-hardening super-PR prompt
• 9c7850c docs(site): add v0.40.0 changelog entry and bump latest pointer (#404)
• 0cfb400 docs(site): sync website pages with v0.40 code
• 5bce677 release: v0.40.1 (#412)