fix(sw): bump cache versions, add recipes to pre-cache, guard init IIFE

Resolves #72

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.22.1] - 2026-04-21
+
+### Fixed
+- App no longer gets stuck on the "Oikos" splash screen when opened in a new tab. Two root causes addressed: (1) `sw.js` was not updated in v0.22.0, so the browser kept the old Service Worker and served stale cached files (old `router.js`, `meals.js`) via Stale-While-Revalidate — cache versions are now bumped (shell v35, pages v30) to force reinstallation and fresh file delivery. (2) A fatal error in `initI18n()` (e.g. locale fetch failure offline) left the splash screen visible forever — the router IIFE now catches such errors, hides the splash screen, and renders a recoverable error state.
+- Service Worker now pre-caches `/pages/recipes.js` and `/styles/recipes.css` introduced in v0.22.0, enabling offline access to the Recipes page.
+
 ## [0.22.0] - 2026-04-21
 
 ### Added

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "oikos",
-  "version": "0.22.0",
+  "version": "0.22.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "oikos",
-      "version": "0.22.0",
+      "version": "0.22.1",
       "license": "MIT",
       "dependencies": {
         "bcrypt": "^6.0.0",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "oikos",
-  "version": "0.22.0",
+  "version": "0.22.1",
   "description": "Self-hosted family planner - calendar, tasks, shopping, meal planning, budget and more. Private, open-source, no subscription.",
   "main": "server/index.js",
   "type": "module",

public/router.js

@@ -858,8 +858,15 @@ if (/iPhone|iPad|iPod/.test(navigator.userAgent)) {
 // Initialisierung
 // --------------------------------------------------------
 (async () => {
-  await initI18n();
-  navigate(location.pathname, false);
+  try {
+    await initI18n();
+    navigate(location.pathname, false);
+  } catch (err) {
+    console.error('[Router] Initialisierung fehlgeschlagen:', err);
+    const loading = document.getElementById('app-loading');
+    if (loading) loading.hidden = true;
+    renderError(document.getElementById('app'), err);
+  }
 })();
 
 // Globale Exporte

public/sw.js

@@ -12,8 +12,8 @@
  *   API: Immer Netzwerk (kein Caching von Nutzerdaten)
  */
 
-const SHELL_CACHE   = 'oikos-shell-v34';
-const PAGES_CACHE   = 'oikos-pages-v29';
+const SHELL_CACHE   = 'oikos-shell-v35';
+const PAGES_CACHE   = 'oikos-pages-v30';
 const ASSETS_CACHE  = 'oikos-assets-v27';
 const ALL_CACHES    = [SHELL_CACHE, PAGES_CACHE, ASSETS_CACHE];
 
@@ -50,6 +50,7 @@ const APP_SHELL = [
   '/styles/contacts.css',
   '/styles/budget.css',
   '/styles/settings.css',
+  '/styles/recipes.css',
   '/components/oikos-install-prompt.js',
   '/offline.html',
   '/manifest.json',
@@ -74,6 +75,7 @@ const PAGE_MODULES = [
   '/pages/budget.js',
   '/pages/settings.js',
   '/pages/login.js',
+  '/pages/recipes.js',
 ];
 
 // --------------------------------------------------------