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/ajv/lib/vocabularies/applicator/index.ts

@@ -0,0 +1,53 @@
+import type {ErrorNoParams, Vocabulary} from "../../types"
+import additionalItems, {AdditionalItemsError} from "./additionalItems"
+import prefixItems from "./prefixItems"
+import items from "./items"
+import items2020, {ItemsError} from "./items2020"
+import contains, {ContainsError} from "./contains"
+import dependencies, {DependenciesError} from "./dependencies"
+import propertyNames, {PropertyNamesError} from "./propertyNames"
+import additionalProperties, {AdditionalPropertiesError} from "./additionalProperties"
+import properties from "./properties"
+import patternProperties from "./patternProperties"
+import notKeyword, {NotKeywordError} from "./not"
+import anyOf, {AnyOfError} from "./anyOf"
+import oneOf, {OneOfError} from "./oneOf"
+import allOf from "./allOf"
+import ifKeyword, {IfKeywordError} from "./if"
+import thenElse from "./thenElse"
+
+export default function getApplicator(draft2020 = false): Vocabulary {
+  const applicator = [
+    // any
+    notKeyword,
+    anyOf,
+    oneOf,
+    allOf,
+    ifKeyword,
+    thenElse,
+    // object
+    propertyNames,
+    additionalProperties,
+    dependencies,
+    properties,
+    patternProperties,
+  ]
+  // array
+  if (draft2020) applicator.push(prefixItems, items2020)
+  else applicator.push(additionalItems, items)
+  applicator.push(contains)
+  return applicator
+}
+
+export type ApplicatorKeywordError =
+  | ErrorNoParams<"false schema">
+  | AdditionalItemsError
+  | ItemsError
+  | ContainsError
+  | AdditionalPropertiesError
+  | DependenciesError
+  | IfKeywordError
+  | AnyOfError
+  | OneOfError
+  | NotKeywordError
+  | PropertyNamesError