pwa / offline mode

- @vite-pwa/sveltekit: workbox precache (incl. pdfjs worker), generated manifest, prompt-style updates via PwaUpdatePrompt toast
- prerendered routes for offline navigation, PWA icons, theme-color + apple-touch-icon
- pwa offline/update e2e suite (pnpm test:pwa, playwright.pwa.config.ts)
- datenschutz: offline/install section; prettier cleanup of shadcn components

src/lib/components/ui/card/card-action.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
-	import { cn, type WithElementRef } from "$lib/utils.js";
-	import type { HTMLAttributes } from "svelte/elements";
+	import { cn, type WithElementRef } from '$lib/utils.js';
+	import type { HTMLAttributes } from 'svelte/elements';
 
 	let {
 		ref = $bindable(null),
@@ -14,7 +14,7 @@
 	bind:this={ref}
 	data-slot="card-action"
 	class={cn(
-		"cn-card-action col-start-2 row-span-2 row-start-1 self-start justify-self-end",
+		'cn-card-action col-start-2 row-span-2 row-start-1 self-start justify-self-end',
 		className
 	)}
 	{...restProps}

src/lib/components/ui/card/card-content.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
-	import type { HTMLAttributes } from "svelte/elements";
-	import { cn, type WithElementRef } from "$lib/utils.js";
+	import type { HTMLAttributes } from 'svelte/elements';
+	import { cn, type WithElementRef } from '$lib/utils.js';
 
 	let {
 		ref = $bindable(null),
@@ -13,7 +13,7 @@
 <div
 	bind:this={ref}
 	data-slot="card-content"
-	class={cn("px-4 group-data-[size=sm]/card:px-3", className)}
+	class={cn('px-4 group-data-[size=sm]/card:px-3', className)}
 	{...restProps}
 >
 	{@render children?.()}

src/lib/components/ui/card/card-description.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
-	import type { HTMLAttributes } from "svelte/elements";
-	import { cn, type WithElementRef } from "$lib/utils.js";
+	import type { HTMLAttributes } from 'svelte/elements';
+	import { cn, type WithElementRef } from '$lib/utils.js';
 
 	let {
 		ref = $bindable(null),
@@ -13,7 +13,7 @@
 <p
 	bind:this={ref}
 	data-slot="card-description"
-	class={cn("text-muted-foreground text-sm", className)}
+	class={cn('text-muted-foreground text-sm', className)}
 	{...restProps}
 >
 	{@render children?.()}

src/lib/components/ui/card/card-footer.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
-	import { cn, type WithElementRef } from "$lib/utils.js";
-	import type { HTMLAttributes } from "svelte/elements";
+	import { cn, type WithElementRef } from '$lib/utils.js';
+	import type { HTMLAttributes } from 'svelte/elements';
 
 	let {
 		ref = $bindable(null),
@@ -13,7 +13,10 @@
 <div
 	bind:this={ref}
 	data-slot="card-footer"
-	class={cn("bg-muted/50 rounded-b-xl border-t p-4 group-data-[size=sm]/card:p-3 flex items-center", className)}
+	class={cn(
+		'bg-muted/50 rounded-b-xl border-t p-4 group-data-[size=sm]/card:p-3 flex items-center',
+		className
+	)}
 	{...restProps}
 >
 	{@render children?.()}

src/lib/components/ui/card/card-header.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
-	import { cn, type WithElementRef } from "$lib/utils.js";
-	import type { HTMLAttributes } from "svelte/elements";
+	import { cn, type WithElementRef } from '$lib/utils.js';
+	import type { HTMLAttributes } from 'svelte/elements';
 
 	let {
 		ref = $bindable(null),
@@ -14,7 +14,7 @@
 	bind:this={ref}
 	data-slot="card-header"
 	class={cn(
-		"gap-1 rounded-t-xl px-4 group-data-[size=sm]/card:px-3 [.border-b]:pb-4 group-data-[size=sm]/card:[.border-b]:pb-3 group/card-header @container/card-header grid auto-rows-min items-start has-data-[slot=card-action]:grid-cols-[1fr_auto] has-data-[slot=card-description]:grid-rows-[auto_auto]",
+		'gap-1 rounded-t-xl px-4 group-data-[size=sm]/card:px-3 [.border-b]:pb-4 group-data-[size=sm]/card:[.border-b]:pb-3 group/card-header @container/card-header grid auto-rows-min items-start has-data-[slot=card-action]:grid-cols-[1fr_auto] has-data-[slot=card-description]:grid-rows-[auto_auto]',
 		className
 	)}
 	{...restProps}

src/lib/components/ui/card/card-title.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
-	import type { HTMLAttributes } from "svelte/elements";
-	import { cn, type WithElementRef } from "$lib/utils.js";
+	import type { HTMLAttributes } from 'svelte/elements';
+	import { cn, type WithElementRef } from '$lib/utils.js';
 
 	let {
 		ref = $bindable(null),
@@ -13,7 +13,7 @@
 <div
 	bind:this={ref}
 	data-slot="card-title"
-	class={cn("text-base leading-snug font-medium group-data-[size=sm]/card:text-sm", className)}
+	class={cn('text-base leading-snug font-medium group-data-[size=sm]/card:text-sm', className)}
 	{...restProps}
 >
 	{@render children?.()}

src/lib/components/ui/card/card.svelte

@@ -1,21 +1,24 @@
 <script lang="ts">
-	import type { HTMLAttributes } from "svelte/elements";
-	import { cn, type WithElementRef } from "$lib/utils.js";
+	import type { HTMLAttributes } from 'svelte/elements';
+	import { cn, type WithElementRef } from '$lib/utils.js';
 
 	let {
 		ref = $bindable(null),
 		class: className,
 		children,
-		size = "default",
+		size = 'default',
 		...restProps
-	}: WithElementRef<HTMLAttributes<HTMLDivElement>> & { size?: "default" | "sm" } = $props();
+	}: WithElementRef<HTMLAttributes<HTMLDivElement>> & { size?: 'default' | 'sm' } = $props();
 </script>
 
 <div
 	bind:this={ref}
 	data-slot="card"
 	data-size={size}
-	class={cn("ring-foreground/10 bg-card text-card-foreground gap-4 overflow-hidden rounded-xl py-4 text-sm ring-1 has-data-[slot=card-footer]:pb-0 has-[>img:first-child]:pt-0 data-[size=sm]:gap-3 data-[size=sm]:py-3 data-[size=sm]:has-data-[slot=card-footer]:pb-0 *:[img:first-child]:rounded-t-xl *:[img:last-child]:rounded-b-xl group/card flex flex-col", className)}
+	class={cn(
+		'ring-foreground/10 bg-card text-card-foreground gap-4 overflow-hidden rounded-xl py-4 text-sm ring-1 has-data-[slot=card-footer]:pb-0 has-[>img:first-child]:pt-0 data-[size=sm]:gap-3 data-[size=sm]:py-3 data-[size=sm]:has-data-[slot=card-footer]:pb-0 *:[img:first-child]:rounded-t-xl *:[img:last-child]:rounded-b-xl group/card flex flex-col',
+		className
+	)}
 	{...restProps}
 >
 	{@render children?.()}