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/@babel/helper-module-transforms/lib/get-module-name.js

@@ -0,0 +1,46 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = getModuleName;
+const originalGetModuleName = getModuleName;
+exports.default = getModuleName = function getModuleName(rootOpts, pluginOpts) {
+  var _pluginOpts$moduleId, _pluginOpts$moduleIds, _pluginOpts$getModule, _pluginOpts$moduleRoo;
+  return originalGetModuleName(rootOpts, {
+    moduleId: (_pluginOpts$moduleId = pluginOpts.moduleId) != null ? _pluginOpts$moduleId : rootOpts.moduleId,
+    moduleIds: (_pluginOpts$moduleIds = pluginOpts.moduleIds) != null ? _pluginOpts$moduleIds : rootOpts.moduleIds,
+    getModuleId: (_pluginOpts$getModule = pluginOpts.getModuleId) != null ? _pluginOpts$getModule : rootOpts.getModuleId,
+    moduleRoot: (_pluginOpts$moduleRoo = pluginOpts.moduleRoot) != null ? _pluginOpts$moduleRoo : rootOpts.moduleRoot
+  });
+};
+function getModuleName(rootOpts, pluginOpts) {
+  const {
+    filename,
+    filenameRelative = filename,
+    sourceRoot = pluginOpts.moduleRoot
+  } = rootOpts;
+  const {
+    moduleId,
+    moduleIds = !!moduleId,
+    getModuleId,
+    moduleRoot = sourceRoot
+  } = pluginOpts;
+  if (!moduleIds) return null;
+  if (moduleId != null && !getModuleId) {
+    return moduleId;
+  }
+  let moduleName = moduleRoot != null ? moduleRoot + "/" : "";
+  if (filenameRelative) {
+    const sourceRootReplacer = sourceRoot != null ? new RegExp("^" + sourceRoot + "/?") : "";
+    moduleName += filenameRelative.replace(sourceRootReplacer, "").replace(/\.\w*$/, "");
+  }
+  moduleName = moduleName.replace(/\\/g, "/");
+  if (getModuleId) {
+    return getModuleId(moduleName) || moduleName;
+  } else {
+    return moduleName;
+  }
+}
+
+//# sourceMappingURL=get-module-name.js.map