Closes the GIRO → SporadicE → display loop. When a 144 or 440 MHz path
is calculated, PathLive looks up the nearest polled ionosonde's latest
foEs via Ionosphere.nearest_foes/3, runs SporadicE.es_score for the
actual (band, distance) pair, and renders a panel showing:
* Live foEs / foF2 / station-code / timestamp
* Computed single-hop Es MUF for this exact path length
* 0-100 Es score for the selected band
* Human-readable interpretation ("strong opening", "tropo only",
"out of single-hop window", etc.)
Panel only appears for 144/440 (Es isn't relevant on microwave) and
only when the nearest station has data within the last 2 hours — if
ionosonde data is stale or missing, the panel is omitted entirely
rather than shown with misleading values.
Does not touch the grid scorer on /map — a grid cell has no intrinsic
path length, so Es scoring there is conceptually muddy. PathLive is
the right home for path-specific predictions.
Subscribe to "propagation:updated" on connected mount and, when the
grid worker finishes a forecast-hour step, re-read point_forecast for
the path midpoint using the stashed band_mhz and source/destination.
Terrain, HRRR profiles, and the loss/power budget are independent of
grid scores and stay as-is. Before this, a /path page rendered once at
mount and only refreshed on manual reload.
