Reverts the experimental feature that attempted to serve the dashboard
via a local HTTP server registered as a hardcoded `my.dash.board` virtual
host, intended to satisfy Chrome's PWA "secure origin" installability
requirement. The approach caused proxy connection errors and file-not-found
issues that were not worth resolving.
Removed: native-host/dashboard-server.js, native-host/test-chain.mjs
Reverted: startup.js, message-router.js, virtual-hosts.js, index.js,
build-distributable.js, extension/pages/virtual-hosts.js,
CI workflows (ci.yml, release.yml)
Split host.js (435 lines) into host/{paths,logger,startup,message-router}.js.
Split holesail-manager.js (698 lines) into holesail-manager/{state,settings,
connections,port-allocator,servers,virtual-hosts,service-tunnels,index}.js.
Top-level host.js and holesail-manager.js become thin shims so index.mjs
requires no changes. Deleted dev scratch file test-cp.mjs.
Updated CI with 12 new node --check lines for all sub-modules.
Updated docs/ARCHITECTURE.md with per-file tables for host/ and
holesail-manager/ sub-modules.
No functionality changed. No new dependencies.
Raven Scott