[GaganSD]

Summary

• Make MCP configuration-only; remove private Pi imports, version gates, and duplicate validation.
• Isolate optional UI failures with quiet fallbacks and /slate diagnostics, preserving genuine failures.
• Harden layout ownership, transcript projection, editor cleanup, paste undo, and conversation-content preservation.
• Add real baseline/latest-host checks, packed-artifact PR gating, and a daily upstream canary.
• Patch the shared Undici development override to 8.12.4 and synchronize Insights lifecycle tests with published worker state.

Testing

• All PR checks pass: five package lanes and security scans, tooling, secret scanning, and Insights on Node 22.15.0, 22, and 24.
• All package tests/typechecks and CI-scoped lints pass locally; all five dependency audits pass. Insights: 250 tests each on Node 22 and 24.
• Real Pi 1.4.0 and 1.5.2 lifecycle probes cover regular/fullscreen modes, session replacement, final shutdown, and negative canary checks.

Compatibility

• No runtime dependency or configuration migration. Pi’s /mcp remains authoritative for validation and live health.

Risk

• Chat rendering and editor lifecycle changes are covered by real-host and fault-isolation regression tests.