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The Chrome bridge is now a separate detached daemon at
~/.cache/pi-chrome/<version>/daemon.cjs. Every Pi session is a uniform client;
daemon lifecycle is decoupled from any Pi session. Killing a Pi never breaks
Chrome control, and pi update followed by any new Pi session auto-replaces
an incompatible daemon.
Architecture:
- New extensions/chrome-profile-bridge/daemon.cjs: ~700 LOC, zero deps, runs
detached. Owns the HTTP listener, BridgeAuth state, command queue, /pair
handshake. Idle-shuts-down after 10 min of no activity.
- ChromeProfileBridge on Pi side becomes a pure client: start() probes /status,
spawns daemon if missing/incompatible, kills+respawns if version mismatch.
send() always uses signed /command. No more server-mode branch.
- New signed /admin RPC for pair-window/reset/status state mutations the
daemon owns. Pi clients sign with broker key (same contract as /command).
- New /heartbeat for daemon idle-timer keepalive.
- daemon.log at ~/.cache/pi-chrome/<version>/daemon.log.
/chrome pair, /chrome unpair, /chrome onboard now go through /admin RPCs
instead of mutating in-process bridge state.
Removed the foreign-owner takeover dance from /chrome onboard (auto-handled
at session_start now).
Wire protocol is byte-identical to 0.16.x; existing paired extensions don't
need to re-pair. See docs/DESIGN-0.17-daemon.md for the full write-up.
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