Nebula 3.0.27

Changes since nebula-v3.0.26:

• d9ee4641 Fix queued Butler chat dispatch (#829)
• cbfce843 Surface pending agent reviews to Butler (#828)
• fe7af8a2 docs: remove obsolete plans and review artifacts (#827)
• 94fb5be0 docs: explain Butler Voice API key setup (#826)
• 9a2ddbcb docs: center Butler architecture diagram in README (#825)
• 65734614 docs: show Butler Voice in a sample project (#824)
• 05d54c5a Keep Butler Act investigations alive and classify read-only checks
• 97268d44 Type-check Butler Act recovery paths
• 79c83c90 Classify Butler recovery error outcomes
• 3811eb49 Format Butler recovery and focused tests for CI
• 5537be6f Format Butler harness gateway for CI
• 42c07a60 Check Butler Act in production LAN browsers
• 3f1ec70c Bind harness gateway failures and isolate Butler repair turns
• 4d4ea5da Wire Butler recovery into Core API
• 6fde5a9c Implement project-scoped Butler Act recovery
• 49931b43 docs: propose Butler proactive recovery workflow
• 6a509780 Let Butler select durable memories and honor remember requests (#821)
• c23b37a3 Keep Butler reply tables readable on mobile (#820)