Owner / admin click "Edit" on /rover-locations/:id and the marker
becomes draggable. As they drag, the JS hook pushes `location_dragged`
events with the new lat/lon; the LiveView updates `working_lat` /
`working_lon` / `grid` so the page shows the live preview without
writing to the DB. "Save" persists via Rover.update_location, "Cancel"
reverts both the assigns and the marker position.
Implementation notes:
- Switched the map marker from L.circleMarker to a draggable L.marker
with a divIcon (CircleMarker has no `dragging` handler).
- A second `draggingDotIcon` (amber, larger, grab cursor) makes the
edit affordance obvious.
- Server <-> hook coordination uses push_event:
set_marker_draggable / reset_marker. Drag results come back on
pushEvent("location_dragged", { lat, lon }).
- Coordinates row binds to working_lat/working_lon so the displayed
decimals + derived grid update on every drag, not only on save.
Adds a full-screen map view rendering every Good rover-location as a
green circle marker (popup links to the detail page). Uses the standard
OSM/Satellite + Maidenhead grid overlay pattern. Bad locations are
excluded. Adds a Map button next to Add location on the index header.
Renames the rover-location status enum and every label that referenced
it. Existing rows are migrated in place. Also touches the consumers:
- Rover.Location enum + default
- RoverLocationsLive index, status filter, form, show, badges
- Rover.Compute and rover_live (only_ideal_locations → only_good_locations)
- RoverPlanning context candidate filter (status == :good)
- RoverPlanning.Show / Form copy
- All rover-related tests
Rover.update_location/3 and delete_location/2 now resolve any record
when the actor is_admin. The index + show LiveViews surface Edit/Delete
on every row for admin users, matching the existing owner UX.
Each row now has a View link (and the location cell links too) to a
new show LiveView that renders the full record alongside a Leaflet
map centered on the marker. Owners get a Delete button there as well.
