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/vitest/dist/chunks/worker.tN5KGIih.d.ts

@@ -0,0 +1,156 @@
+import { File, TaskResultPack, CancelReason, Task } from '@vitest/runner';
+import { ViteNodeResolveId, ModuleCacheMap } from 'vite-node';
+import { S as SerializedConfig } from './config.Cy0C388Z.js';
+import { T as TransformMode, U as UserConsoleLog, A as AfterSuiteRunMeta, E as Environment } from './environment.LoooBwUu.js';
+import { SnapshotResult } from '@vitest/snapshot';
+
+type ArgumentsType<T> = T extends (...args: infer A) => any ? A : never;
+type ReturnType<T> = T extends (...args: any) => infer R ? R : never;
+type PromisifyFn<T> = ReturnType<T> extends Promise<any> ? T : (...args: ArgumentsType<T>) => Promise<Awaited<ReturnType<T>>>;
+type BirpcResolver = (name: string, resolved: (...args: unknown[]) => unknown) => ((...args: unknown[]) => unknown) | undefined;
+interface ChannelOptions {
+    /**
+     * Function to post raw message
+     */
+    post: (data: any, ...extras: any[]) => any | Promise<any>;
+    /**
+     * Listener to receive raw message
+     */
+    on: (fn: (data: any, ...extras: any[]) => void) => any | Promise<any>;
+    /**
+     * Clear the listener when `$close` is called
+     */
+    off?: (fn: (data: any, ...extras: any[]) => void) => any | Promise<any>;
+    /**
+     * Custom function to serialize data
+     *
+     * by default it passes the data as-is
+     */
+    serialize?: (data: any) => any;
+    /**
+     * Custom function to deserialize data
+     *
+     * by default it passes the data as-is
+     */
+    deserialize?: (data: any) => any;
+    /**
+     * Call the methods with the RPC context or the original functions object
+     */
+    bind?: 'rpc' | 'functions';
+}
+interface EventOptions<Remote> {
+    /**
+     * Names of remote functions that do not need response.
+     */
+    eventNames?: (keyof Remote)[];
+    /**
+     * Maximum timeout for waiting for response, in milliseconds.
+     *
+     * @default 60_000
+     */
+    timeout?: number;
+    /**
+     * Custom resolver to resolve function to be called
+     *
+     * For advanced use cases only
+     */
+    resolver?: BirpcResolver;
+    /**
+     * Custom error handler
+     */
+    onError?: (error: Error, functionName: string, args: any[]) => boolean | void;
+    /**
+     * Custom error handler for timeouts
+     */
+    onTimeoutError?: (functionName: string, args: any[]) => boolean | void;
+}
+type BirpcOptions<Remote> = EventOptions<Remote> & ChannelOptions;
+type BirpcFn<T> = PromisifyFn<T> & {
+    /**
+     * Send event without asking for response
+     */
+    asEvent: (...args: ArgumentsType<T>) => void;
+};
+type BirpcReturn<RemoteFunctions, LocalFunctions = Record<string, never>> = {
+    [K in keyof RemoteFunctions]: BirpcFn<RemoteFunctions[K]>;
+} & {
+    $functions: LocalFunctions;
+    $close: () => void;
+};
+
+interface RuntimeRPC {
+    fetch: (id: string, transformMode: TransformMode) => Promise<{
+        externalize?: string;
+        id?: string;
+    }>;
+    transform: (id: string, transformMode: TransformMode) => Promise<{
+        code?: string;
+    }>;
+    resolveId: (id: string, importer: string | undefined, transformMode: TransformMode) => Promise<{
+        external?: boolean | 'absolute' | 'relative';
+        id: string;
+        /** @deprecated */
+        meta?: Record<string, any> | null;
+        /** @deprecated */
+        moduleSideEffects?: boolean | 'no-treeshake' | null;
+        /** @deprecated */
+        syntheticNamedExports?: boolean | string | null;
+    } | null>;
+    /**
+     * @deprecated unused
+     */
+    getSourceMap: (id: string, force?: boolean) => Promise<any>;
+    onFinished: (files: File[], errors?: unknown[]) => void;
+    onPathsCollected: (paths: string[]) => void;
+    onUserConsoleLog: (log: UserConsoleLog) => void;
+    onUnhandledError: (err: unknown, type: string) => void;
+    onCollected: (files: File[]) => Promise<void>;
+    onAfterSuiteRun: (meta: AfterSuiteRunMeta) => void;
+    onTaskUpdate: (pack: TaskResultPack[]) => Promise<void>;
+    onCancel: (reason: CancelReason) => void;
+    getCountOfFailedTests: () => number;
+    snapshotSaved: (snapshot: SnapshotResult) => void;
+    resolveSnapshotPath: (testPath: string) => string;
+}
+interface RunnerRPC {
+    onCancel: (reason: CancelReason) => void;
+}
+
+/** @deprecated unused */
+type ResolveIdFunction = (id: string, importer?: string) => Promise<ViteNodeResolveId | null>;
+type WorkerRPC = BirpcReturn<RuntimeRPC, RunnerRPC>;
+interface ContextTestEnvironment {
+    name: string;
+    transformMode?: TransformMode;
+    options: Record<string, any> | null;
+}
+interface ContextRPC {
+    pool: string;
+    worker: string;
+    workerId: number;
+    config: SerializedConfig;
+    projectName: string;
+    files: string[];
+    environment: ContextTestEnvironment;
+    providedContext: Record<string, any>;
+    invalidates?: string[];
+}
+interface WorkerGlobalState {
+    ctx: ContextRPC;
+    config: SerializedConfig;
+    rpc: WorkerRPC;
+    current?: Task;
+    filepath?: string;
+    environment: Environment;
+    environmentTeardownRun?: boolean;
+    onCancel: Promise<CancelReason>;
+    moduleCache: ModuleCacheMap;
+    providedContext: Record<string, any>;
+    durations: {
+        environment: number;
+        prepare: number;
+    };
+    onFilterStackTrace?: (trace: string) => string;
+}
+
+export type { BirpcOptions as B, ContextRPC as C, RuntimeRPC as R, WorkerGlobalState as W, BirpcReturn as a, WorkerRPC as b, RunnerRPC as c, ContextTestEnvironment as d, ResolveIdFunction as e };