feat(hikes): pre-rendered overview hero map with same handover pattern

Mirrors the per-hike detail-page hero on the /hikes index. Build emits one
WebP at the union bbox of every visible hike with each preview polyline
drawn in its SAC-tier colour; page renders it under the live Leaflet map
and fades it out once the first tile batch loads.

Tile fetcher now distinguishes HTTP 4xx ("intentionally blank — outside
Switzerland") from real network errors, so the larger overview canvas
that extends into DE/IT/FR doesn't trip the network-failure abort.

This commit is contained in:

Alexander Bocken

2026-05-19 08:18:23 +02:00

parent fd2d8a58d9

commit fe08e06a02

6 changed files with 427 additions and 38 deletions

									
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				{

					"name": "homepage",

					"version": "1.72.0",

					"version": "1.73.0",

					"private": true,

					"type": "module",

					"scripts": {