fix(settings): unify global settings across web apps

- Add desktopPosition prop to Clock layout for nav sync
- Remove duplicate local theme/locale controls from Clock, Calendar, Todo, Zitare
- Move GlobalSettingsSection to proper position in settings pages
- Remove weekStartsOn from Calendar (now handled by GlobalSettingsSection)

All web apps now consistently use GlobalSettingsSection for:
- Navigation (desktopPosition, sidebarCollapsed)
- Theme (mode, colorScheme)
- Language (locale)
- General (startPage, weekStartsOn, soundsEnabled)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/calendar/apps/web/src/routes/(app)/settings/+page.svelte

@@ -1,17 +1,12 @@
 <script lang="ts">
 	import { onMount } from 'svelte';
 	import { goto } from '$app/navigation';
-	import { _ } from 'svelte-i18n';
 	import { authStore } from '$lib/stores/auth.svelte';
-	import { theme } from '$lib/stores/theme';
 	import { userSettings } from '$lib/stores/user-settings.svelte';
 	import { settingsStore } from '$lib/stores/settings.svelte';
-	import type { WeekStartDay, TimeFormat, AllDayDisplayMode } from '$lib/stores/settings.svelte';
+	import type { TimeFormat, AllDayDisplayMode } from '$lib/stores/settings.svelte';
 	import { calendarsStore } from '$lib/stores/calendars.svelte';
 	import { toast } from '$lib/stores/toast';
-	import { setLocale, supportedLocales } from '$lib/i18n';
-	import type { SupportedLocale } from '$lib/i18n';
-	import { THEME_DEFINITIONS } from '@manacore/shared-theme';
 	import { GlobalSettingsSection } from '@manacore/shared-ui';
 	import type { CalendarViewType, Calendar } from '@calendar/shared';
 
@@ -21,9 +16,6 @@
 	let newCalendarName = $state('');
 	let newCalendarColor = $state('#3b82f6');
 
-	// Get current locale from svelte-i18n
-	import { locale } from 'svelte-i18n';
-
 	onMount(async () => {
 		if (!authStore.isAuthenticated) {
 			goto('/login');
@@ -79,22 +71,10 @@
 		editingCalendar = null;
 	}
 
-	function handleThemeChange(mode: 'light' | 'dark' | 'system') {
-		theme.setMode(mode);
-	}
-
-	function handleLocaleChange(newLocale: SupportedLocale) {
-		setLocale(newLocale);
-	}
-
 	function handleViewChange(view: CalendarViewType) {
 		settingsStore.set('defaultView', view);
 	}
 
-	function handleWeekStartChange(day: WeekStartDay) {
-		settingsStore.set('weekStartsOn', day);
-	}
-
 	function handleTimeFormatChange(format: TimeFormat) {
 		settingsStore.set('timeFormat', format);
 	}
@@ -107,15 +87,6 @@
 		settingsStore.set('defaultReminder', minutes);
 	}
 
-	// Language labels
-	const localeLabels: Record<SupportedLocale, string> = {
-		de: 'Deutsch',
-		en: 'English',
-		fr: 'Français',
-		es: 'Español',
-		it: 'Italiano',
-	};
-
 	// View labels
 	const viewLabels: Record<CalendarViewType, string> = {
 		day: 'Tag',
@@ -255,95 +226,14 @@
 		</div>
 	</section>
 
-	<!-- Sprache -->
-	<section class="settings-section card">
-		<h2>Sprache</h2>
-
-		<div class="setting-item">
-			<div class="setting-info">
-				<span class="setting-label">Anzeigesprache</span>
-				<span class="setting-description">Sprache für die Benutzeroberfläche</span>
-			</div>
-			<div class="locale-options">
-				{#each supportedLocales as loc}
-					<button
-						class="locale-option"
-						class:active={$locale === loc}
-						onclick={() => handleLocaleChange(loc)}
-					>
-						{localeLabels[loc]}
-					</button>
-				{/each}
-			</div>
-		</div>
-	</section>
-
-	<!-- Erscheinungsbild -->
-	<section class="settings-section card">
-		<h2>Erscheinungsbild</h2>
-
-		<div class="setting-item">
-			<div class="setting-info">
-				<span class="setting-label">Design-Modus</span>
-				<span class="setting-description">Wählen Sie zwischen hell, dunkel oder automatisch</span>
-			</div>
-			<div class="theme-options">
-				<button
-					class="theme-option"
-					class:active={theme.mode === 'light'}
-					onclick={() => handleThemeChange('light')}
-				>
-					<svg class="icon" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-						<circle cx="12" cy="12" r="5"></circle>
-						<path
-							d="M12 1v2M12 21v2M4.22 4.22l1.42 1.42M18.36 18.36l1.42 1.42M1 12h2M21 12h2M4.22 19.78l1.42-1.42M18.36 5.64l1.42-1.42"
-						></path>
-					</svg>
-					Hell
-				</button>
-				<button
-					class="theme-option"
-					class:active={theme.mode === 'dark'}
-					onclick={() => handleThemeChange('dark')}
-				>
-					<svg class="icon" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-						<path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"></path>
-					</svg>
-					Dunkel
-				</button>
-				<button
-					class="theme-option"
-					class:active={theme.mode === 'system'}
-					onclick={() => handleThemeChange('system')}
-				>
-					<svg class="icon" fill="none" stroke="currentColor" viewBox="0 0 24 24">
-						<rect x="2" y="3" width="20" height="14" rx="2" ry="2"></rect>
-						<line x1="8" y1="21" x2="16" y2="21"></line>
-						<line x1="12" y1="17" x2="12" y2="21"></line>
-					</svg>
-					System
-				</button>
-			</div>
-		</div>
-
-		<div class="setting-item">
-			<div class="setting-info">
-				<span class="setting-label">Farbschema</span>
-				<span class="setting-description">Wählen Sie ein Farbschema für die App</span>
-			</div>
-			<div class="variant-grid">
-				{#each theme.variants as variant}
-					<button
-						class="variant-option"
-						class:active={theme.variant === variant}
-						onclick={() => theme.setVariant(variant)}
-					>
-						<span class="variant-icon">{THEME_DEFINITIONS[variant].icon}</span>
-						<span class="variant-label">{THEME_DEFINITIONS[variant].label}</span>
-					</button>
-				{/each}
-			</div>
-		</div>
+	<!-- Global App Settings (synced across all apps) -->
+	<section class="settings-section">
+		<GlobalSettingsSection
+			{userSettings}
+			appId="calendar"
+			title="App-Einstellungen"
+			description="Diese Einstellungen werden mit allen Mana Apps synchronisiert"
+		/>
 	</section>
 
 	<!-- Kalender-Ansicht -->
@@ -366,29 +256,6 @@
 			</select>
 		</div>
 
-		<div class="setting-item">
-			<div class="setting-info">
-				<span class="setting-label">Wochenstart</span>
-				<span class="setting-description">Erster Tag der Woche</span>
-			</div>
-			<div class="button-group">
-				<button
-					class="group-button"
-					class:active={settingsStore.weekStartsOn === 1}
-					onclick={() => handleWeekStartChange(1)}
-				>
-					Montag
-				</button>
-				<button
-					class="group-button"
-					class:active={settingsStore.weekStartsOn === 0}
-					onclick={() => handleWeekStartChange(0)}
-				>
-					Sonntag
-				</button>
-			</div>
-		</div>
-
 		<div class="setting-item">
 			<div class="setting-info">
 				<span class="setting-label">Zeitformat</span>
@@ -566,11 +433,6 @@
 		</div>
 	</section>
 
-	<!-- Global App Settings -->
-	<section class="settings-section">
-		<GlobalSettingsSection {userSettings} />
-	</section>
-
 	<!-- Konto -->
 	<section class="settings-section card">
 		<h2>Konto</h2>

apps/clock/apps/web/src/routes/(app)/+layout.svelte

@@ -168,6 +168,7 @@
 		currentPath={$page.url.pathname}
 		appName="Clock"
 		homeRoute="/"
+		desktopPosition={userSettings.nav.desktopPosition}
 		onToggleTheme={handleToggleTheme}
 		{isDark}
 		{isSidebarMode}

apps/clock/apps/web/src/routes/(app)/settings/+page.svelte

@@ -1,9 +1,6 @@
 <script lang="ts">
 	import { _ } from 'svelte-i18n';
-	import { theme } from '$lib/stores/theme.svelte';
 	import { userSettings } from '$lib/stores/user-settings.svelte';
-	import { setLocale, supportedLocales } from '$lib/i18n';
-	import { THEME_DEFINITIONS } from '@manacore/shared-theme';
 	import { GlobalSettingsSection } from '@manacore/shared-ui';
 
 	// Settings state
@@ -24,14 +21,6 @@
 		}
 	}
 
-	const languageNames: Record<string, string> = {
-		de: 'Deutsch',
-		en: 'English',
-		fr: 'Français',
-		es: 'Español',
-		it: 'Italiano',
-	};
-
 	// Translation function for GlobalSettingsSection
 	function translate(key: string): string {
 		return $_?.(key) ?? key;
@@ -41,80 +30,21 @@
 <div class="mx-auto max-w-2xl space-y-6">
 	<h1 class="text-2xl font-bold text-foreground">{$_('settings.title')}</h1>
 
-	<!-- Appearance Section -->
+	<!-- Global Settings Section (synced across all apps) -->
+	<GlobalSettingsSection
+		{userSettings}
+		appId="clock"
+		title="App-Einstellungen"
+		description="Diese Einstellungen werden mit allen Mana Apps synchronisiert"
+		t={translate}
+	/>
+
+	<!-- Clock-specific Settings -->
 	<div class="card">
-		<h2 class="mb-4 text-lg font-semibold">{$_('settings.appearance')}</h2>
+		<h2 class="mb-4 text-lg font-semibold">{$_('settings.clockFormat')}</h2>
 
-		<!-- Theme Mode -->
-		<div class="mb-6">
-			<label class="mb-2 block text-sm font-medium">{$_('settings.darkMode')}</label>
-			<div class="flex gap-2">
-				<button
-					class="btn btn-sm"
-					class:btn-primary={theme.mode === 'light'}
-					class:btn-secondary={theme.mode !== 'light'}
-					onclick={() => theme.setMode('light')}
-				>
-					☀️ Light
-				</button>
-				<button
-					class="btn btn-sm"
-					class:btn-primary={theme.mode === 'dark'}
-					class:btn-secondary={theme.mode !== 'dark'}
-					onclick={() => theme.setMode('dark')}
-				>
-					🌙 Dark
-				</button>
-				<button
-					class="btn btn-sm"
-					class:btn-primary={theme.mode === 'system'}
-					class:btn-secondary={theme.mode !== 'system'}
-					onclick={() => theme.setMode('system')}
-				>
-					💻 System
-				</button>
-			</div>
-		</div>
-
-		<!-- Theme Variant -->
 		<div>
-			<label class="mb-2 block text-sm font-medium">{$_('settings.theme')}</label>
-			<div class="grid grid-cols-3 gap-2 sm:grid-cols-5">
-				{#each theme.variants as variant}
-					<button
-						class="flex flex-col items-center gap-1 rounded-lg border-2 p-3 transition-colors"
-						class:border-primary={theme.variant === variant}
-						class:border-transparent={theme.variant !== variant}
-						onclick={() => theme.setVariant(variant)}
-					>
-						<span class="text-xl">{THEME_DEFINITIONS[variant].icon}</span>
-						<span class="text-xs">{THEME_DEFINITIONS[variant].label}</span>
-					</button>
-				{/each}
-			</div>
-		</div>
-	</div>
-
-	<!-- General Section -->
-	<div class="card">
-		<h2 class="mb-4 text-lg font-semibold">{$_('settings.general')}</h2>
-
-		<!-- Language -->
-		<div class="mb-6">
-			<label class="mb-2 block text-sm font-medium">{$_('settings.language')}</label>
-			<select
-				class="input"
-				onchange={(e) => setLocale((e.target as HTMLSelectElement).value as any)}
-			>
-				{#each supportedLocales as locale}
-					<option value={locale}>{languageNames[locale]}</option>
-				{/each}
-			</select>
-		</div>
-
-		<!-- Clock Format -->
-		<div>
-			<label class="mb-2 block text-sm font-medium">{$_('settings.clockFormat')}</label>
+			<label class="mb-2 block text-sm font-medium">Zeitformat</label>
 			<div class="flex gap-2">
 				<button
 					class="btn btn-sm"
@@ -167,17 +97,4 @@
 			Töne können für einzelne Wecker und Timer in deren Einstellungen angepasst werden.
 		</p>
 	</div>
-
-	<!-- Global Settings Section -->
-	<GlobalSettingsSection
-		{userSettings}
-		appId="clock"
-		showNavigation={false}
-		showTheme={false}
-		showLanguage={false}
-		showGeneral={true}
-		title="Globale Einstellungen"
-		description="Diese Einstellungen gelten für alle Mana Apps"
-		t={translate}
-	/>
 </div>

apps/todo/apps/web/src/routes/(app)/settings/+page.svelte

@@ -2,16 +2,12 @@
 	import { onMount } from 'svelte';
 	import { goto } from '$app/navigation';
 	import { authStore } from '$lib/stores/auth.svelte';
-	import { theme } from '$lib/stores/theme';
 	import { userSettings } from '$lib/stores/user-settings.svelte';
-	import { THEME_DEFINITIONS } from '@manacore/shared-theme';
-	import { ThemeColorPreview } from '@manacore/shared-theme-ui';
 	import {
 		SettingsPage,
 		SettingsSection,
 		SettingsCard,
 		SettingsRow,
-		SettingsToggle,
 		SettingsDangerZone,
 		SettingsDangerButton,
 		GlobalSettingsSection,
@@ -27,10 +23,6 @@
 		await userSettings.load();
 	});
 
-	function toggleDarkMode() {
-		theme.toggleMode();
-	}
-
 	async function handleLogout() {
 		await authStore.signOut();
 		goto('/login');
@@ -89,77 +81,7 @@
 		</SettingsCard>
 	</SettingsSection>
 
-	<!-- Appearance Section -->
-	<SettingsSection title="Aussehen">
-		{#snippet icon()}
-			<svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
-				<path
-					stroke-linecap="round"
-					stroke-linejoin="round"
-					stroke-width="2"
-					d="M7 21a4 4 0 01-4-4V5a2 2 0 012-2h4a2 2 0 012 2v12a4 4 0 01-4 4zm0 0h12a2 2 0 002-2v-4a2 2 0 00-2-2h-2.343M11 7.343l1.657-1.657a2 2 0 012.828 0l2.829 2.829a2 2 0 010 2.828l-8.486 8.485M7 17h.01"
-				/>
-			</svg>
-		{/snippet}
-
-		<SettingsCard>
-			<SettingsToggle
-				label="Dark Mode"
-				description="Dunkles Farbschema verwenden"
-				isOn={theme.isDark}
-				onToggle={toggleDarkMode}
-			>
-				{#snippet icon()}
-					<svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
-						<path
-							stroke-linecap="round"
-							stroke-linejoin="round"
-							stroke-width="2"
-							d="M20.354 15.354A9 9 0 018.646 3.646 9.003 9.003 0 0012 21a9.003 9.003 0 008.354-5.646z"
-						/>
-					</svg>
-				{/snippet}
-			</SettingsToggle>
-
-			<SettingsRow
-				label="Aktuelles Theme"
-				description={THEME_DEFINITIONS[theme.variant].label}
-				onclick={() => goto('/themes')}
-			>
-				{#snippet icon()}
-					<svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
-						<path
-							stroke-linecap="round"
-							stroke-linejoin="round"
-							stroke-width="2"
-							d="M7 21a4 4 0 01-4-4V5a2 2 0 012-2h4a2 2 0 012 2v12a4 4 0 01-4 4zm0 0h12a2 2 0 002-2v-4a2 2 0 00-2-2h-2.343M11 7.343l1.657-1.657a2 2 0 012.828 0l2.829 2.829a2 2 0 010 2.828l-8.486 8.485M7 17h.01"
-						/>
-					</svg>
-				{/snippet}
-				<span
-					class="px-3 py-1.5 text-sm font-medium bg-[hsl(var(--primary))] text-[hsl(var(--primary-foreground))] rounded-lg"
-				>
-					Themes wählen
-				</span>
-			</SettingsRow>
-
-			<div class="px-5 py-4 border-t border-[hsl(var(--border))]">
-				<p class="font-medium text-[hsl(var(--foreground))] mb-2">Farbvorschau</p>
-				<p class="text-sm text-[hsl(var(--muted-foreground))] mb-4">
-					So sieht die App mit dem aktuellen Theme aus
-				</p>
-				<div class="flex justify-center">
-					<ThemeColorPreview
-						variant={theme.variant}
-						mode={theme.isDark ? 'dark' : 'light'}
-						size="lg"
-					/>
-				</div>
-			</div>
-		</SettingsCard>
-	</SettingsSection>
-
-	<!-- Global Settings Section -->
+	<!-- Global Settings Section (synced across all apps) -->
 	<GlobalSettingsSection {userSettings} appId="todo" />
 
 	<!-- About Section -->

apps/zitare/apps/web/src/routes/(app)/settings/+page.svelte

@@ -1,53 +1,30 @@
 <script lang="ts">
 	import { onMount } from 'svelte';
-	import { goto } from '$app/navigation';
-	import { theme } from '$lib/stores/theme';
 	import { userSettings } from '$lib/stores/user-settings.svelte';
-	import { THEME_DEFINITIONS } from '@manacore/shared-theme';
-	import { ThemeColorPreview } from '@manacore/shared-theme-ui';
 	import {
 		SettingsPage,
 		SettingsSection,
 		SettingsCard,
 		SettingsRow,
-		SettingsToggle,
 		SettingsDangerZone,
 		SettingsDangerButton,
 		GlobalSettingsSection,
 	} from '@manacore/shared-ui';
 
 	// Settings state
-	let language = $state<'de' | 'en'>('de');
 	let userName = $state('');
 
 	// Load settings from localStorage on mount
 	onMount(async () => {
-		const savedLanguage = localStorage.getItem('language');
 		const savedUserName = localStorage.getItem('userName');
-
-		if (savedLanguage) language = savedLanguage as 'de' | 'en';
 		if (savedUserName) userName = savedUserName;
 
 		// Load user settings from server
 		await userSettings.load();
 	});
 
-	// Save settings to localStorage
-	function saveSetting(key: string, value: string | boolean) {
-		localStorage.setItem(key, String(value));
-	}
-
-	function toggleDarkMode(value: boolean) {
-		theme.toggleMode();
-	}
-
-	function setLanguageSetting(lang: 'de' | 'en') {
-		language = lang;
-		saveSetting('language', lang);
-	}
-
 	function saveUserName() {
-		saveSetting('userName', userName);
+		localStorage.setItem('userName', userName);
 	}
 
 	function resetAllData() {
@@ -97,120 +74,8 @@
 		</SettingsCard>
 	</SettingsSection>
 
-	<!-- Appearance Section -->
-	<SettingsSection title="Aussehen">
-		{#snippet icon()}
-			<svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
-				<path
-					stroke-linecap="round"
-					stroke-linejoin="round"
-					stroke-width="2"
-					d="M7 21a4 4 0 01-4-4V5a2 2 0 012-2h4a2 2 0 012 2v12a4 4 0 01-4 4zm0 0h12a2 2 0 002-2v-4a2 2 0 00-2-2h-2.343M11 7.343l1.657-1.657a2 2 0 012.828 0l2.829 2.829a2 2 0 010 2.828l-8.486 8.485M7 17h.01"
-				/>
-			</svg>
-		{/snippet}
-
-		<SettingsCard>
-			<SettingsToggle
-				label="Dark Mode"
-				description="Dunkles Farbschema verwenden"
-				isOn={theme.isDark}
-				onToggle={toggleDarkMode}
-			>
-				{#snippet icon()}
-					<svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
-						<path
-							stroke-linecap="round"
-							stroke-linejoin="round"
-							stroke-width="2"
-							d="M20.354 15.354A9 9 0 018.646 3.646 9.003 9.003 0 0012 21a9.003 9.003 0 008.354-5.646z"
-						/>
-					</svg>
-				{/snippet}
-			</SettingsToggle>
-
-			<SettingsRow
-				label="Aktuelles Theme"
-				description={THEME_DEFINITIONS[theme.variant].label}
-				onclick={() => goto('/themes')}
-			>
-				{#snippet icon()}
-					<svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
-						<path
-							stroke-linecap="round"
-							stroke-linejoin="round"
-							stroke-width="2"
-							d="M7 21a4 4 0 01-4-4V5a2 2 0 012-2h4a2 2 0 012 2v12a4 4 0 01-4 4zm0 0h12a2 2 0 002-2v-4a2 2 0 00-2-2h-2.343M11 7.343l1.657-1.657a2 2 0 012.828 0l2.829 2.829a2 2 0 010 2.828l-8.486 8.485M7 17h.01"
-						/>
-					</svg>
-				{/snippet}
-				<span
-					class="px-3 py-1.5 text-sm font-medium bg-[hsl(var(--primary))] text-[hsl(var(--primary-foreground))] rounded-lg"
-				>
-					Themes wählen
-				</span>
-			</SettingsRow>
-
-			<div class="px-5 py-4 border-t border-[hsl(var(--border))]">
-				<p class="font-medium text-[hsl(var(--foreground))] mb-2">Farbvorschau</p>
-				<p class="text-sm text-[hsl(var(--muted-foreground))] mb-4">
-					So sieht die App mit dem aktuellen Theme aus
-				</p>
-				<div class="flex justify-center">
-					<ThemeColorPreview
-						variant={theme.variant}
-						mode={theme.isDark ? 'dark' : 'light'}
-						size="lg"
-					/>
-				</div>
-			</div>
-		</SettingsCard>
-	</SettingsSection>
-
-	<!-- Language Section -->
-	<SettingsSection title="Sprache">
-		{#snippet icon()}
-			<svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
-				<path
-					stroke-linecap="round"
-					stroke-linejoin="round"
-					stroke-width="2"
-					d="M3 5h12M9 3v2m1.048 9.5A18.022 18.022 0 016.412 9m6.088 9h7M11 21l5-10 5 10M12.751 5C11.783 10.77 8.07 15.61 3 18.129"
-				/>
-			</svg>
-		{/snippet}
-
-		<SettingsCard>
-			<div class="px-5 py-4">
-				<div class="flex items-center justify-between">
-					<div>
-						<p class="font-medium text-[hsl(var(--foreground))]">Sprache</p>
-						<p class="text-sm text-[hsl(var(--muted-foreground))]">Sprache der App und Zitate</p>
-					</div>
-					<div class="flex rounded-full overflow-hidden border border-[hsl(var(--border))]">
-						<button
-							class="px-4 py-2 text-sm font-medium transition-colors
-								{language === 'de'
-								? 'bg-[hsl(var(--primary))] text-[hsl(var(--primary-foreground))]'
-								: 'bg-transparent text-[hsl(var(--foreground))]'}"
-							onclick={() => setLanguageSetting('de')}
-						>
-							DE
-						</button>
-						<button
-							class="px-4 py-2 text-sm font-medium transition-colors
-								{language === 'en'
-								? 'bg-[hsl(var(--primary))] text-[hsl(var(--primary-foreground))]'
-								: 'bg-transparent text-[hsl(var(--foreground))]'}"
-							onclick={() => setLanguageSetting('en')}
-						>
-							EN
-						</button>
-					</div>
-				</div>
-			</div>
-		</SettingsCard>
-	</SettingsSection>
+	<!-- Global Settings Section (synced across all apps) -->
+	<GlobalSettingsSection {userSettings} appId="zitare" />
 
 	<!-- About Section -->
 	<SettingsSection title="Über">
@@ -232,9 +97,6 @@
 		</SettingsCard>
 	</SettingsSection>
 
-	<!-- Global Settings Section -->
-	<GlobalSettingsSection {userSettings} />
-
 	<!-- Data Section -->
 	<SettingsDangerZone title="Daten">
 		<SettingsDangerButton