Baseline note: TestMetricHistoryMinuteFold fails identically on
the pristine B3 tip in the same wall-clock window (minute-parity
sensitive seed), passes in others — pre-existing, untouched path.
- probe package: probe_ping_task/probe_ping_node tables; task CRUD
with hub save semantics (id high-water, base-diff assignment,
64-per-agent crowding refusal, auto_join cap); filing with
assignment-gated insert; PingHistory weighted-median chart read
over minute+hour tiers; auto-join on first Record (ensureRows).
- controller: /panel/api/agent/probe-tasks* management endpoints
(node id space, hub validation chain verbatim); series=ping now
serves real rows from probe.PingHistory; heartbeat ingests
probeResults (missing latency skipped, batch capped); config
response carries probe_tasks (always present, empty = clear).
- agent: per-task probe loops (immediate first probe, ticker,
900ms resolve/dial budgets, <=3 addresses, resolve overrun = no
sample), result buffer drained on heartbeat and requeued on
failure; task set applied before the config-hash early return.
Muse