Joseph Doherty c25acd6093 fix(overview): one bad health response no longer stops the dashboard host (scadaproj#29) ...

ZbHealthReportClient caught only HttpRequestException/OperationCanceledException,
so an unknown Content-Type charset (InvalidOperationException from
ReadAsStringAsync) escaped the probe, faulted Task.WhenAll and the poller
BackgroundService, and StopHost took the dashboard down.

- client: final catch-all returns an Unreachable result for that instance
- poller: per-target Guarded probe + catch-and-log per sweep in ExecuteAsync
- tests: unknown charset (both tiers), arbitrary handler exception, sweep with
  one bad instance, and the BackgroundService survival loop
- code-reviews: Overview-001 Resolved; README regenerated

Claude-Session: https://claude.ai/code/session_01GT67AEHd2Acv1YPwGfXEoV

2026-11-09 14:42:23 -05:00

..

findings.md

fix(overview): one bad health response no longer stops the dashboard host (scadaproj#29)

2026-11-09 14:42:23 -05:00