- new agent_reach/backends/opencli.py: probes install + daemon/extension
state via `opencli daemon status` (pure query — `opencli doctor`
auto-starts the daemon, a side effect health checks must avoid)
- `agent-reach install --channels opencli`: npm install + Chrome Web
Store guide (extension install cannot be automated — Chrome security
model — so we print the one-click path)
- server env skips OpenCLI (rides a real desktop Chrome session)
- channels will adopt it as a backend candidate in follow-up PRs
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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