Closes Phase 6 (the items that don't need a backend change). Three
threads, all on the Hermes Mission Control overview:
1. Severity-tagged alerts on the ops panel
New `RecentAlerts` component classifies each `recentAlerts` string
into critical / warn / info by leading token (CRITICAL/ERROR/FATAL
→ critical; INFO/OK → info; default → warn — most ops alerts are
warnings) and renders a colour-coded badge per alert. A
per-severity radiogroup filter sits in the panel header with live
counts. Pure UI — no backend contract change. The watchdog log
tailer in `hermes-telemetry/repository.ts` already emits structured
severities for the future migration off of leading-token parsing.
2. Per-instance action row on each `InstanceCard`
Adds three buttons next to "Open dashboard" / "Copy URL":
- "Copy SSH command": Tailscale-scoped only — never raw `ssh` —
and per-instance user (`tailscale ssh root@<ts-ip>` for Vijay,
`tailscale ssh uma@<ts-ip>` for Bheem). Disabled when the
snapshot has no Tailscale IP.
- "View tasks": deep link into the Task Ledger pre-filtered by
instance via `/hermes/tasks?instance=<id>`.
- "Open runbook": link to `docs/hermes-operations.md`.
"How to restart this gateway" is intentionally a runbook link, not
a button — restarting is privileged and should go through the
documented procedure, not the dashboard UI.
3. URL-param hydration of the instance switcher
`HermesInstanceProvider` now reads `?instance=` from the URL on
mount (and on subsequent navigations to a different value). The
URL value wins over the persisted localStorage selection so deep
links from the ops panel land on a pre-filtered pane. The param
is intentionally not auto-stripped — back/forward and copy-paste
stay meaningful.
Roadmap status: Phase 6 ticked except trend cards (deferred — needs
client-side history persistence) and theme toggle (deferred — shell
doesn't expose a switch primitive yet). Unified-alerts-feed bullet
partially achieved by the new severity filter; the per-instance roll-up
will land when a UI consumer is built for the Phase 3 telemetry
endpoint.
Verified: typecheck ✅, build ✅, 7/7 E2E ✅ (the existing switcher
test exercises the new context code path; URL hydration is covered
indirectly by the deep-link button → Task Ledger pre-filter).
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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
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