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/inspector.70d6emsh.js

@@ -0,0 +1,54 @@
+import { createRequire } from 'node:module';
+import { pathToFileURL } from 'node:url';
+
+const __require = createRequire(import.meta.url);
+let inspector;
+let session;
+function setupInspect(ctx) {
+  const config = ctx.config;
+  const isEnabled = config.inspector.enabled;
+  if (isEnabled) {
+    inspector = __require("node:inspector");
+    const isOpen = inspector.url() !== void 0;
+    if (!isOpen) {
+      inspector.open(
+        config.inspector.port,
+        config.inspector.host,
+        config.inspector.waitForDebugger
+      );
+      if (config.inspectBrk) {
+        const firstTestFile = ctx.files[0];
+        if (firstTestFile) {
+          session = new inspector.Session();
+          session.connect();
+          session.post("Debugger.enable");
+          session.post("Debugger.setBreakpointByUrl", {
+            lineNumber: 0,
+            url: pathToFileURL(firstTestFile)
+          });
+        }
+      }
+    }
+  }
+  const keepOpen = shouldKeepOpen(config);
+  return function cleanup() {
+    if (isEnabled && !keepOpen && inspector) {
+      inspector.close();
+      session?.disconnect();
+    }
+  };
+}
+function closeInspector(config) {
+  const keepOpen = shouldKeepOpen(config);
+  if (inspector && !keepOpen) {
+    inspector.close();
+    session?.disconnect();
+  }
+}
+function shouldKeepOpen(config) {
+  const isIsolatedSingleThread = config.pool === "threads" && config.poolOptions?.threads?.isolate === false && config.poolOptions?.threads?.singleThread;
+  const isIsolatedSingleFork = config.pool === "forks" && config.poolOptions?.forks?.isolate === false && config.poolOptions?.forks?.singleFork;
+  return config.watch && (isIsolatedSingleFork || isIsolatedSingleThread);
+}
+
+export { closeInspector as c, setupInspect as s };