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/lodash/_baseOrderBy.js

@@ -0,0 +1,49 @@
+var arrayMap = require('./_arrayMap'),
+    baseGet = require('./_baseGet'),
+    baseIteratee = require('./_baseIteratee'),
+    baseMap = require('./_baseMap'),
+    baseSortBy = require('./_baseSortBy'),
+    baseUnary = require('./_baseUnary'),
+    compareMultiple = require('./_compareMultiple'),
+    identity = require('./identity'),
+    isArray = require('./isArray');
+
+/**
+ * The base implementation of `_.orderBy` without param guards.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
+ * @param {string[]} orders The sort orders of `iteratees`.
+ * @returns {Array} Returns the new sorted array.
+ */
+function baseOrderBy(collection, iteratees, orders) {
+  if (iteratees.length) {
+    iteratees = arrayMap(iteratees, function(iteratee) {
+      if (isArray(iteratee)) {
+        return function(value) {
+          return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);
+        }
+      }
+      return iteratee;
+    });
+  } else {
+    iteratees = [identity];
+  }
+
+  var index = -1;
+  iteratees = arrayMap(iteratees, baseUnary(baseIteratee));
+
+  var result = baseMap(collection, function(value, key, collection) {
+    var criteria = arrayMap(iteratees, function(iteratee) {
+      return iteratee(value);
+    });
+    return { 'criteria': criteria, 'index': ++index, 'value': value };
+  });
+
+  return baseSortBy(result, function(object, other) {
+    return compareMultiple(object, other, orders);
+  });
+}
+
+module.exports = baseOrderBy;