release: prepare v0.11.0

[joeynyc]

Summary

• set package and lockfile versions to 0.11.0
• finalize the v0.11 secure remote sessions changelog and release documentation
• align roadmap, README, contributor guidance, and remote-control safety invariants

Release evidence

• 99 unit/server tests passed
• 24 Chromium and 24 WebKit end-to-end journeys passed
• 75-second control soak passed
• packed-install smoke passed with real CLI, server, host agent, and Fleet integration
• release tag/version and package privacy checks passed
• production npm audit found 0 vulnerabilities

The user explicitly approved merge, tag, npm publication, and GitHub release creation for v0.11.0.