feat: move offline indicator to header, rename to Offline-Modus, and redesign tasting form

OFFLINE_SYNC_PWA.md

@@ -62,16 +62,17 @@ A critical feature is the ability to link tasting notes to a bottle that hasn't
 
 ## 📱 PWA Features
 
-### Service Worker (`public/sw.js`) - "Bunker v7 + SWR"
+### Service Worker (`public/sw.js`) - "Offline-Modus v10 + SWR"
 The Service Worker implements a robust "Cache-First, Network-Background" strategy:
 
-- **Pre-Caching**: The landing page (`/`) and core static assets are cached individually during installation to prevent total failure on single-file 404s.
+- **Pre-Caching**: The landing page (`/`) and core static assets are cached individually (sequentially) during installation to prevent total failure on single-file 404s.
 - **Manifest Path**: Corrected to `/manifest.webmanifest` to match Next.js defaults.
 - **SWR Navigation & Assets**: Both load instantly from cache. Updates happen in the background via `fetchWithTimeout` and `AbortController`.
 - **Universal Root Fallback**: Deep links (like `/bottles/[id]`) fallback to `/` if not cached, allowing Next.js to take over.
 - **Network Stability**: Added a 2-second stabilization delay in `UploadQueue.tsx` before background sync starts after a network change.
 - **RSC Data Resiliency**: Requests to `/_next/data/` return an empty JSON object if they fail.
-- **Stale-While-Revalidate**: Applied to static assets to ensure immediate UI response.
+- **Indicator**: Located in the application header for constant status visibility.
+- **Offline-Modus**: Formerly called "Bunker", this system ensures all core assets are ready for a zero-connectivity environment.
 
 ### Manifest (`src/app/manifest.ts`)
 Defines the app's appearance when installed: