docs: record adapter 0.6.0 public delivery

[tamashi095]

Records the @misofm/engine-web-adapter@0.6.0 release in spec 131 and .github/RELEASE_EVIDENCE/131/registry-release.json, following the earlier "Public delivery evidence" records.

• PR Move to stable Effect 4.0.x (0.6.0) #130 merged as 5a2fa1953558fbe572ab5bd5433061769b4862ce; publish run 38432201391 (success) published through OIDC from that SHA.
• Registry: latest is 0.6.0, dependency @misofm/codec 0.2.0, peer effect >=4.0.3 <4.1, gitHead equal to the merge SHA, 248 files, integrity sha512-WUFAl4xz...6vw/ww==.
• Spec 131: the stale "publication has not been performed" sentence is replaced, and a delivery section is added. It also records the independent consumer check in misofm/app#304 (one Effect 4.0.4, decoder compiles, mixer plays in Chromium; the 0.5.13 + codec 0.1.1 combination fails with the scheduler TypeError).

Docs and evidence only; nothing in the npm payload changes. No tag or GitHub release was created (0.5.x had none either).

Closes #131

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