Sirius 0.6.2 Beta 2

Sirius 0.6.2 Beta 2

This hotfix repairs the verified updater's restart handoff. Beta 1 could finish
its download and SHA-256 verification but remain indefinitely on RESTARTING
when runtime shutdown did not return.

What changed

• App shutdown now has a five-second graceful deadline. Sirius still asks every
  owned runtime to stop and saves recoverable state, but an unresponsive runtime
  can no longer block application termination forever.
• The external verified installer waits for graceful shutdown, then escalates
  through TERM and KILL before touching /Applications/Sirius.app.
• A failed helper run leaves a persistent, user-visible error that is consumed
  on the next update check instead of leaving the update panel stuck.
• Previous installed bundles are still preserved as timestamped rollback copies.
• The mounted and installed replacement must still pass deep code-signature and
  Gatekeeper verification before Sirius is relaunched.
• Includes all stability, capability routing, bounded-context, Smart Inbox, and
  recoverability improvements from 0.6.2 Beta 1.

Verification

• Updater shutdown-escalation regression test
• Previous-helper-error recovery regression test
• Full Swift test suite
• Optimized release build
• Developer ID signature verification
• Apple notarization and ticket stapling
• Gatekeeper assessment
• SHA-256 release checksum

Package

• Version: 0.6.2 Beta 2
• Build: 30
• File: Sirius-0.6.2-beta.2-arm64.dmg