v0.1.0-alpha.277

What's Changed

• feat(#2136): Content Publishing v1 — publishing package, MCP content tool set, per-principal rate limiting by @jonesrussell in #2137
• fix(#2136): include notes in idempotency payloads by @jonesrussell in #2138
• ci(#2136): register new split packages on Packagist via create-package fallback by @jonesrussell in #2139

Full Changelog: v0.1.0-alpha.276...v0.1.0-alpha.277