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>

pwa/node_modules/glob/dist/esm/ignore.d.ts

@@ -0,0 +1,24 @@
+import { Minimatch, MinimatchOptions } from 'minimatch';
+import { Path } from 'path-scurry';
+import { GlobWalkerOpts } from './walker.js';
+export interface IgnoreLike {
+    ignored?: (p: Path) => boolean;
+    childrenIgnored?: (p: Path) => boolean;
+    add?: (ignore: string) => void;
+}
+/**
+ * Class used to process ignored patterns
+ */
+export declare class Ignore implements IgnoreLike {
+    relative: Minimatch[];
+    relativeChildren: Minimatch[];
+    absolute: Minimatch[];
+    absoluteChildren: Minimatch[];
+    platform: NodeJS.Platform;
+    mmopts: MinimatchOptions;
+    constructor(ignored: string[], { nobrace, nocase, noext, noglobstar, platform, }: GlobWalkerOpts);
+    add(ign: string): void;
+    ignored(p: Path): boolean;
+    childrenIgnored(p: Path): boolean;
+}
+//# sourceMappingURL=ignore.d.ts.map