computeTourMetrics indexed points[i - 1] and points[i], which the shared
package's noUncheckedIndexedAccess reads as possibly undefined, so the
shared typecheck in CI failed since the metrics moved there. It walks the
points pairwise from the first one now; the numbers are the same.
A tourRepo replaces the direct toursApi calls: reads fall back to a new
Dexie tours table, and a tour saved or edited offline is written there and
queued like a place, under one temporary id for the place and its facet.
The queue moves both to the real id on replay and drops both when the
server refuses the create. Trip sync caches each trip's tours while the
addon is on, so a tour no longer reads as a plain place offline.
The tour metrics move to shared so the offline copy shows the server's
numbers, and useTourPlaceIds keeps one Set per change as intended.
tour_types now holds every key the shared contract accepts, all but hike
disabled, and create and edit turn a disabled type away with a 400 instead
of failing on the foreign key. tours.tour_group_id is dropped: nothing ever
wrote or read it. difficulty and wanderer_ref stay for the Wanderer import.
Maurice