Publish clean public projection from prerelease

[jearonwong]

Publishes the clean Public OSS projection promoted from reviewed prerelease main.

Release chain evidence:

• Dev source: Coregentis/MPLP-Protocol-Dev@f3fba934eb268f58b670ec580f1179d43c40c76a
• Prerelease review PR: Clean prerelease projection from Dev f3fba934 mplp_prerelease#4
• Prerelease main merge: af2cf03ba1293a264e22bca51f719ed3e1cc916a
• Public PR source: jearonwong/MPLP-Protocol fork branch, not a branch inside Coregentis/MPLP-Protocol

Scope:

• update RELEASE_MANIFEST.json from reviewed clean projection
• remove selected legacy process-line governance records from final Public OSS
• keep release-config.yaml excluded from final Public OSS

Verified before PR:

• generated clean dist file count: 765
• Docusaurus build from generated dist: passed
• prerelease PR Build Docusaurus: passed
• CodeQL checks in prerelease PR: passed
• hard forbidden path scan: 0
• hard forbidden content scan: 0
• active @mplp/compliance/@mplp/validator package surface scan: 0

Forbidden actions not performed:

• no npm/PyPI mutation
• no tag/seal/GitHub Release
• no branch created inside Coregentis/MPLP-Protocol
• no credentials read, printed, copied, or committed