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')(0xAA, 0xBA, 0x2071, 0x207F, 0x2132, 0x214E);
set.addRange(0x41, 0x5A).addRange(0x61, 0x7A).addRange(0xC0, 0xD6).addRange(0xD8, 0xF6).addRange(0xF8, 0x2B8).addRange(0x2E0, 0x2E4).addRange(0x1D00, 0x1D25).addRange(0x1D2C, 0x1D5C).addRange(0x1D62, 0x1D65).addRange(0x1D6B, 0x1D77).addRange(0x1D79, 0x1DBE).addRange(0x1E00, 0x1EFF).addRange(0x2090, 0x209C).addRange(0x212A, 0x212B).addRange(0x2160, 0x2188).addRange(0x2C60, 0x2C7F).addRange(0xA722, 0xA787).addRange(0xA78B, 0xA7DC).addRange(0xA7F1, 0xA7FF).addRange(0xAB30, 0xAB5A).addRange(0xAB5C, 0xAB64).addRange(0xAB66, 0xAB69).addRange(0xFB00, 0xFB06).addRange(0xFF21, 0xFF3A).addRange(0xFF41, 0xFF5A).addRange(0x10780, 0x10785).addRange(0x10787, 0x107B0).addRange(0x107B2, 0x107BA).addRange(0x1DF00, 0x1DF1E).addRange(0x1DF25, 0x1DF2A);
exports.characters = set;