Add progressive web app companion for cross-platform access

Vite + TypeScript PWA that mirrors the Android app's core features:
- Pre-processed shelter data (build-time UTM33N→WGS84 conversion)
- Leaflet map with shelter markers, user location, and offline tiles
- Canvas compass arrow (ported from DirectionArrowView.kt)
- IndexedDB shelter cache with 7-day staleness check
- Service worker with CacheFirst tiles and precached app shell
- i18n for en, nb, nn (ported from Android strings.xml)
- iOS/Android compass handling with low-pass filter
- Respects user map interaction (no auto-snap on pan/zoom)
- Build revision cache-breaker for reliable SW updates

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Ole-Morten Duesund 2026-03-08 17:41:38 +01:00
commit e8428de775
12051 changed files with 1799735 additions and 0 deletions

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const set = require('regenerate')(0x16FE4);
set.addRange(0x3006, 0x3007).addRange(0x3021, 0x3029).addRange(0x3038, 0x303A).addRange(0x3400, 0x4DBF).addRange(0x4E00, 0x9FFF).addRange(0xF900, 0xFA6D).addRange(0xFA70, 0xFAD9).addRange(0x16FF2, 0x16FF6).addRange(0x17000, 0x18CD5).addRange(0x18CFF, 0x18D1E).addRange(0x18D80, 0x18DF2).addRange(0x1B170, 0x1B2FB).addRange(0x20000, 0x2A6DF).addRange(0x2A700, 0x2B81D).addRange(0x2B820, 0x2CEAD).addRange(0x2CEB0, 0x2EBE0).addRange(0x2EBF0, 0x2EE5D).addRange(0x2F800, 0x2FA1D).addRange(0x30000, 0x3134A).addRange(0x31350, 0x33479);
exports.characters = set;