feat(calendar): add DateStrip context menu with display settings

- Add context menu for DateStrip with toggle switches for:
  - Moon phases visibility
  - Event indicators visibility
  - Weekday names visibility
  - Weekend highlighting (subtle background color)
  - Month divider lines (spacing always present, line toggleable)
  - Compact mode
- Add glass effect to "Today" button matching PillNav styling
- Add toggle switch support to shared ContextMenu component
- Persist all settings to localStorage with cloud sync support

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

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

apps/calendar/apps/web/src/lib/components/calendar/DateStrip.svelte

@@ -262,8 +262,11 @@
 				{@const isFirstOfMonth = day.getDate() === 1}
 				{@const moonPhase = isSignificantMoonPhase(day)}
 				{@const eventCount = getEventCount(day)}
-				{#if isFirstOfMonth && settingsStore.dateStripShowMonthDividers}
-					<div class="month-divider"></div>
+				{#if isFirstOfMonth}
+					<div
+						class="month-divider"
+						class:show-line={settingsStore.dateStripShowMonthDividers}
+					></div>
 				{/if}
 				<button
 					class="day-item"
@@ -277,12 +280,14 @@
 					onclick={() => handleDayClick(day)}
 					class:is-today={dayIsToday}
 				>
-					{#if moonPhase.significant}
+					{#if moonPhase.significant && settingsStore.dateStripShowMoonPhases}
 						<span class="moon-indicator">{moonPhase.emoji}</span>
 					{/if}
-					<span class="day-weekday">{format(day, 'EE', { locale: de })}</span>
+					{#if settingsStore.dateStripShowWeekday}
+						<span class="day-weekday">{format(day, 'EE', { locale: de })}</span>
+					{/if}
 					<span class="day-number">{format(day, 'd')}</span>
-					{#if eventCount > 0}
+					{#if eventCount > 0 && settingsStore.dateStripShowEventIndicators}
 						<div class="event-dots">
 							{#each Array(eventCount) as _, i}
 								<span class="event-dot"></span>
@@ -295,6 +300,8 @@
 	</div>
 </div>
 
+<DateStripContextMenu bind:this={contextMenu} />
+
 <style>
 	.date-strip-wrapper {
 		position: fixed;
@@ -333,25 +340,23 @@
 		flex-direction: column;
 		align-items: center;
 		padding: 0.375rem 0.875rem;
-		background: hsl(var(--color-primary) / 0.1);
-		border: 1px solid hsl(var(--color-primary) / 0.3);
+		background: hsl(var(--color-surface) / 0.85);
+		backdrop-filter: blur(12px);
+		-webkit-backdrop-filter: blur(12px);
+		border: 1px solid hsl(var(--color-border));
 		border-radius: 9999px;
 		cursor: pointer;
 		color: hsl(var(--color-primary));
 		pointer-events: auto;
 		transition: all 0.2s ease;
+		box-shadow: 0 2px 8px hsl(var(--color-foreground) / 0.08);
 	}
 
 	.today-button:hover {
-		background: hsl(var(--color-primary));
-		border-color: hsl(var(--color-primary));
-		color: hsl(var(--color-primary-foreground, 0 0% 100%));
+		background: hsl(var(--color-surface) / 0.95);
+		border-color: hsl(var(--color-primary) / 0.3);
 		transform: translateY(-50%) scale(1.02);
-		box-shadow: 0 4px 12px hsl(var(--color-primary) / 0.3);
-	}
-
-	.today-button:hover .today-date {
-		color: rgba(255, 255, 255, 0.85);
+		box-shadow: 0 4px 12px hsl(var(--color-foreground) / 0.12);
 	}
 
 	.today-label {
@@ -364,7 +369,7 @@
 	.today-date {
 		font-size: 0.75rem;
 		font-weight: 500;
-		color: hsl(var(--color-primary) / 0.8);
+		color: hsl(var(--color-muted-foreground));
 	}
 
 	.date-strip-container {
@@ -402,11 +407,15 @@
 	.month-divider {
 		width: 1px;
 		height: 40px;
-		background: var(--color-border, #e5e7eb);
+		background: transparent;
 		margin: 0 0.5rem;
 		flex-shrink: 0;
 	}
 
+	.month-divider.show-line {
+		background: hsl(var(--color-border));
+	}
+
 	.days-scroll {
 		display: flex;
 		align-items: center;
@@ -479,7 +488,11 @@
 	}
 
 	.day-item.weekend {
-		color: var(--color-muted-foreground, #6b7280);
+		background: hsl(var(--color-muted) / 0.5);
+	}
+
+	.day-item.weekend:hover {
+		background: hsl(var(--color-muted) / 0.8);
 	}
 
 	.day-item.selected {
@@ -590,4 +603,62 @@
 			margin: 0 0.375rem;
 		}
 	}
+
+	/* Compact mode */
+	.date-strip-wrapper.compact .date-strip-container {
+		padding: 0.25rem 0;
+	}
+
+	.date-strip-wrapper.compact .month-header {
+		padding: 0.125rem 0.5rem 0.25rem;
+	}
+
+	.date-strip-wrapper.compact .month-label {
+		font-size: 0.875rem;
+	}
+
+	.date-strip-wrapper.compact .day-item {
+		min-width: 40px;
+		height: 44px;
+		padding: 0.25rem;
+	}
+
+	.date-strip-wrapper.compact .day-weekday {
+		font-size: 0.625rem;
+	}
+
+	.date-strip-wrapper.compact .day-number {
+		font-size: 0.875rem;
+	}
+
+	.date-strip-wrapper.compact .moon-indicator {
+		font-size: 0.875rem;
+		top: -12px;
+	}
+
+	.date-strip-wrapper.compact .month-divider {
+		height: 28px;
+	}
+
+	.date-strip-wrapper.compact .event-dot {
+		width: 3px;
+		height: 3px;
+	}
+
+	.date-strip-wrapper.compact .month-header {
+		padding-top: 0.375rem;
+	}
+
+	.date-strip-wrapper.compact .today-button {
+		padding: 0.25rem 0.625rem;
+		margin-right: 1rem;
+	}
+
+	.date-strip-wrapper.compact .today-label {
+		font-size: 0.5625rem;
+	}
+
+	.date-strip-wrapper.compact .today-date {
+		font-size: 0.625rem;
+	}
 </style>

apps/calendar/apps/web/src/lib/components/calendar/DateStripContextMenu.svelte

@@ -0,0 +1,98 @@
+<script lang="ts">
+	import { ContextMenu, type ContextMenuItem } from '@manacore/shared-ui';
+	import { Moon, Calendar, Eye, Columns, ArrowsIn } from '@manacore/shared-icons';
+	import { settingsStore } from '$lib/stores/settings.svelte';
+
+	// Context menu state
+	let visible = $state(false);
+	let x = $state(0);
+	let y = $state(0);
+
+	// Build menu items based on current settings
+	let menuItems = $derived.by((): ContextMenuItem[] => {
+		return [
+			{
+				id: 'moon-phases',
+				label: 'Mondphasen',
+				icon: Moon,
+				toggle: true,
+				checked: settingsStore.dateStripShowMoonPhases,
+				action: () => toggleSetting('dateStripShowMoonPhases'),
+			},
+			{
+				id: 'event-indicators',
+				label: 'Termin-Punkte',
+				icon: Eye,
+				toggle: true,
+				checked: settingsStore.dateStripShowEventIndicators,
+				action: () => toggleSetting('dateStripShowEventIndicators'),
+			},
+			{
+				id: 'weekday',
+				label: 'Wochentag',
+				icon: Calendar,
+				toggle: true,
+				checked: settingsStore.dateStripShowWeekday,
+				action: () => toggleSetting('dateStripShowWeekday'),
+			},
+			{
+				id: 'divider-1',
+				label: '',
+				type: 'divider',
+			},
+			{
+				id: 'highlight-weekends',
+				label: 'Wochenenden hervorheben',
+				icon: Calendar,
+				toggle: true,
+				checked: settingsStore.dateStripHighlightWeekends,
+				action: () => toggleSetting('dateStripHighlightWeekends'),
+			},
+			{
+				id: 'month-dividers',
+				label: 'Monatstrennlinien',
+				icon: Columns,
+				toggle: true,
+				checked: settingsStore.dateStripShowMonthDividers,
+				action: () => toggleSetting('dateStripShowMonthDividers'),
+			},
+			{
+				id: 'divider-2',
+				label: '',
+				type: 'divider',
+			},
+			{
+				id: 'compact',
+				label: 'Kompakte Ansicht',
+				icon: ArrowsIn,
+				toggle: true,
+				checked: settingsStore.dateStripCompact,
+				action: () => toggleSetting('dateStripCompact'),
+			},
+		];
+	});
+
+	function toggleSetting(key: keyof typeof settingsStore.settings) {
+		const currentValue = settingsStore.settings[key];
+		if (typeof currentValue === 'boolean') {
+			settingsStore.set(key, !currentValue);
+		}
+	}
+
+	function handleClose() {
+		visible = false;
+	}
+
+	// Export show function to be called from parent
+	export function show(clientX: number, clientY: number) {
+		x = clientX;
+		y = clientY;
+		visible = true;
+	}
+
+	export function hide() {
+		visible = false;
+	}
+</script>
+
+<ContextMenu {visible} {x} {y} items={menuItems} onClose={handleClose} />

apps/calendar/apps/web/src/lib/stores/settings.svelte.ts

@@ -26,6 +26,14 @@ export interface CalendarAppSettings {
 	dayEndHour: number; // Last visible hour (0-23)
 	allDayDisplayMode: AllDayDisplayMode; // How to display all-day events
 
+	// DateStrip settings
+	dateStripShowMoonPhases: boolean; // Show moon phase indicators
+	dateStripShowEventIndicators: boolean; // Show event dot indicators
+	dateStripShowWeekday: boolean; // Show weekday names (Mo, Di, Mi...)
+	dateStripHighlightWeekends: boolean; // Visually highlight weekend days
+	dateStripShowMonthDividers: boolean; // Show vertical dividers between months
+	dateStripCompact: boolean; // Use compact/smaller DateStrip
+
 	// UI settings
 	sidebarCollapsed: boolean;
 
@@ -44,6 +52,14 @@ const DEFAULT_SETTINGS: CalendarAppSettings = {
 	dayStartHour: 6,
 	dayEndHour: 20,
 	allDayDisplayMode: 'header',
+	// DateStrip defaults
+	dateStripShowMoonPhases: true,
+	dateStripShowEventIndicators: true,
+	dateStripShowWeekday: true,
+	dateStripHighlightWeekends: true,
+	dateStripShowMonthDividers: true,
+	dateStripCompact: false,
+	// UI defaults
 	sidebarCollapsed: false,
 	defaultEventDuration: 60,
 	defaultReminder: 15,
@@ -142,6 +158,25 @@ export const settingsStore = {
 	get allDayDisplayMode() {
 		return settings.allDayDisplayMode;
 	},
+	// DateStrip settings
+	get dateStripShowMoonPhases() {
+		return settings.dateStripShowMoonPhases;
+	},
+	get dateStripShowEventIndicators() {
+		return settings.dateStripShowEventIndicators;
+	},
+	get dateStripShowWeekday() {
+		return settings.dateStripShowWeekday;
+	},
+	get dateStripHighlightWeekends() {
+		return settings.dateStripHighlightWeekends;
+	},
+	get dateStripShowMonthDividers() {
+		return settings.dateStripShowMonthDividers;
+	},
+	get dateStripCompact() {
+		return settings.dateStripCompact;
+	},
 	get defaultEventDuration() {
 		return settings.defaultEventDuration;
 	},

packages/shared-ui/src/context-menu/types.ts

@@ -20,6 +20,10 @@ export interface ContextMenuItem {
 	action?: () => void;
 	/** Additional data attached to the item */
 	data?: unknown;
+	/** Show a toggle switch (for boolean settings) */
+	toggle?: boolean;
+	/** Current toggle state (only used when toggle is true) */
+	checked?: boolean;
 }
 
 export interface ContextMenuState<T = unknown> {