[rrbe]

Summary

• Show local network, internet, and Tailscale addresses in one list. Selecting an address updates the QR code independently of network switches; access-code mode retains the authenticated QR URL.
• Allow custom servers with automatic registration to connect without an enrollment key, and show internet text-reception controls on the text screen.
• Clarify when sharing stops automatically and update bilingual sharing guides, self-hosted registration instructions, and an interactive address-list demo.
• Run the new MainActor QR-address state test in XCTest's async task context, matching the existing actor lifecycle tests.

Validation

• swift test: 108 tests passed.
• Release remote/state tests: 34 tests passed, followed by five consecutive passing runs.
• pnpm docs:build and git diff --check: passed.
• Release remote E2E: 27 checks passed; remote read-only: 19 checks passed; untrusted TLS rejection: passed.