v0.1.0

First stable release of the v0.1 line. Two completed pilot adoptions validated
the full cycle end to end: a private brownfield service (archaeology → human
intent review → recorded outcomes → scoped remediations → pin upgrade) and a
public repository adopted from a bare kick-off prompt, whose review surfaced
the tag-pin and prose-provenance rules included here.

Adopter impact / upgrade actions

• Upgrade from a v0.1.0-rc.1 or unreleased pin in one reviewed change
  (ADOPTION.md §2.1): upstream.version → v0.1.0,
  upstream.commit → 3ba48728f1d72a94655a6c74aa5b122cc55e0f64
  (the commit this tag points to), and the CI caller workflow @ reference
  → the same SHA.
• From this release the adopter-validate workflow rejects a release pin
  whose commit is not the tag commit.
• The prose-provenance rule (PROFILE.md §7) is a SHOULD-level normative
  addition to archaeology practice; existing artifacts need no changes.
• Schemas are unchanged since v0.1.0-rc.1.

Full changelog: CHANGELOG.md