feat(calendar): add context menu to CalendarHeader with display settings

Add right-click context menu to the calendar header for customizing:
- Compact view toggle
- Weekday format (full/short/hidden)
- Date visibility toggle
- Month display toggle (e.g., "13.12.")

🤖 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/CalendarHeader.svelte

@@ -1,9 +1,50 @@
 <script lang="ts">
 	import { viewStore } from '$lib/stores/view.svelte';
+	import { settingsStore } from '$lib/stores/settings.svelte';
 	import { format } from 'date-fns';
 	import { de } from 'date-fns/locale';
+	import CalendarHeaderContextMenu from './CalendarHeaderContextMenu.svelte';
 
-	// Format title based on view type
+	let contextMenu: CalendarHeaderContextMenu;
+
+	// Get weekday format string based on setting
+	function getWeekdayFormat(): string {
+		switch (settingsStore.headerWeekdayFormat) {
+			case 'full':
+				return 'EEEE';
+			case 'short':
+				return 'EEE';
+			case 'hidden':
+				return '';
+		}
+	}
+
+	// Get date format string based on settings
+	function getDateFormat(includeYear: boolean = true): string {
+		const parts: string[] = [];
+
+		// Weekday
+		const weekdayFormat = getWeekdayFormat();
+		if (weekdayFormat) {
+			parts.push(weekdayFormat);
+		}
+
+		// Date with optional month
+		if (settingsStore.headerShowDate) {
+			if (settingsStore.headerAlwaysShowMonth) {
+				parts.push(includeYear ? 'd.M. MMMM yyyy' : 'd.M.');
+			} else {
+				parts.push(includeYear ? 'd. MMMM yyyy' : 'd.');
+			}
+		} else if (includeYear) {
+			// Only month and year if date is hidden
+			parts.push('MMMM yyyy');
+		}
+
+		return parts.join(', ');
+	}
+
+	// Format title based on view type and settings
 	let title = $derived.by(() => {
 		const date = viewStore.currentDate;
 		const rangeStart = viewStore.viewRange.start;
@@ -11,23 +52,26 @@
 
 		// Helper to format date range
 		const formatRange = () => {
+			const showMonth = settingsStore.headerAlwaysShowMonth;
+			const startFormat = showMonth ? 'd.M.' : 'd.';
+
 			if (rangeStart.getMonth() === rangeEnd.getMonth()) {
 				return (
-					format(rangeStart, 'd.', { locale: de }) +
+					format(rangeStart, startFormat, { locale: de }) +
 					' - ' +
-					format(rangeEnd, 'd. MMMM yyyy', { locale: de })
+					format(rangeEnd, showMonth ? 'd.M. MMMM yyyy' : 'd. MMMM yyyy', { locale: de })
 				);
 			}
 			return (
-				format(rangeStart, 'd. MMM', { locale: de }) +
+				format(rangeStart, showMonth ? 'd.M. MMM' : 'd. MMM', { locale: de }) +
 				' - ' +
-				format(rangeEnd, 'd. MMM yyyy', { locale: de })
+				format(rangeEnd, showMonth ? 'd.M. MMM yyyy' : 'd. MMM yyyy', { locale: de })
 			);
 		};
 
 		switch (viewStore.viewType) {
 			case 'day':
-				return format(date, 'EEEE, d. MMMM yyyy', { locale: de });
+				return format(date, getDateFormat(true), { locale: de });
 			case '5day':
 			case 'week':
 			case '10day':
@@ -43,16 +87,29 @@
 				return format(date, 'MMMM yyyy', { locale: de });
 		}
 	});
+
+	function handleContextMenu(e: MouseEvent) {
+		e.preventDefault();
+		contextMenu.show(e.clientX, e.clientY);
+	}
 </script>
 
-<header class="calendar-header">
+<header
+	class="calendar-header"
+	class:compact={settingsStore.headerCompact}
+	oncontextmenu={handleContextMenu}
+	role="banner"
+>
 	<h1 class="header-title">{title}</h1>
 </header>
 
+<CalendarHeaderContextMenu bind:this={contextMenu} />
+
 <style>
 	.calendar-header {
 		padding: 0.75rem 1rem;
 		background: transparent;
+		cursor: context-menu;
 	}
 
 	.header-title {
@@ -67,4 +124,19 @@
 			font-size: 1rem;
 		}
 	}
+
+	/* Compact variant */
+	.calendar-header.compact {
+		padding: 0.5rem 1rem;
+	}
+
+	.calendar-header.compact .header-title {
+		font-size: 1rem;
+	}
+
+	@media (max-width: 640px) {
+		.calendar-header.compact .header-title {
+			font-size: 0.875rem;
+		}
+	}
 </style>

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

@@ -0,0 +1,102 @@
+<script lang="ts">
+	import { ContextMenu, type ContextMenuItem } from '@manacore/shared-ui';
+	import { ArrowsIn, TextAa, Calendar, CalendarBlank } from '@manacore/shared-icons';
+	import { settingsStore, type WeekdayFormat } 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: 'compact',
+				label: 'Kompakte Ansicht',
+				icon: ArrowsIn,
+				toggle: true,
+				checked: settingsStore.headerCompact,
+				action: () => toggleSetting('headerCompact'),
+			},
+			{
+				id: 'divider-1',
+				label: '',
+				type: 'divider',
+			},
+			{
+				id: 'weekday-full',
+				label: 'Wochentag ausgeschrieben',
+				icon: TextAa,
+				toggle: true,
+				checked: settingsStore.headerWeekdayFormat === 'full',
+				action: () => setWeekdayFormat('full'),
+			},
+			{
+				id: 'weekday-short',
+				label: 'Wochentag gekürzt',
+				icon: TextAa,
+				toggle: true,
+				checked: settingsStore.headerWeekdayFormat === 'short',
+				action: () => setWeekdayFormat('short'),
+			},
+			{
+				id: 'weekday-hidden',
+				label: 'Wochentag ausblenden',
+				icon: TextAa,
+				toggle: true,
+				checked: settingsStore.headerWeekdayFormat === 'hidden',
+				action: () => setWeekdayFormat('hidden'),
+			},
+			{
+				id: 'divider-2',
+				label: '',
+				type: 'divider',
+			},
+			{
+				id: 'show-date',
+				label: 'Datum anzeigen',
+				icon: Calendar,
+				toggle: true,
+				checked: settingsStore.headerShowDate,
+				action: () => toggleSetting('headerShowDate'),
+			},
+			{
+				id: 'always-show-month',
+				label: 'Monat immer anzeigen',
+				icon: CalendarBlank,
+				toggle: true,
+				checked: settingsStore.headerAlwaysShowMonth,
+				action: () => toggleSetting('headerAlwaysShowMonth'),
+			},
+		];
+	});
+
+	function toggleSetting(key: keyof typeof settingsStore.settings) {
+		const currentValue = settingsStore.settings[key];
+		if (typeof currentValue === 'boolean') {
+			settingsStore.set(key, !currentValue);
+		}
+	}
+
+	function setWeekdayFormat(format: WeekdayFormat) {
+		settingsStore.set('headerWeekdayFormat', format);
+	}
+
+	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

@@ -13,6 +13,7 @@ import { userSettings } from './user-settings.svelte';
 export type WeekStartDay = 0 | 1; // 0 = Sunday, 1 = Monday
 export type TimeFormat = '24h' | '12h';
 export type AllDayDisplayMode = 'header' | 'block'; // header = separate row, block = full day block in grid
+export type WeekdayFormat = 'full' | 'short' | 'hidden';
 
 export interface CalendarAppSettings {
 	// View settings
@@ -26,6 +27,12 @@ export interface CalendarAppSettings {
 	dayEndHour: number; // Last visible hour (0-23)
 	allDayDisplayMode: AllDayDisplayMode; // How to display all-day events
 
+	// Header settings
+	headerCompact: boolean; // Compact header display
+	headerWeekdayFormat: WeekdayFormat; // Weekday display format
+	headerShowDate: boolean; // Show date in header
+	headerAlwaysShowMonth: boolean; // Always show month (e.g., "13.12.")
+
 	// DateStrip settings
 	dateStripShowMoonPhases: boolean; // Show moon phase indicators
 	dateStripShowEventIndicators: boolean; // Show event dot indicators
@@ -61,6 +68,11 @@ const DEFAULT_SETTINGS: CalendarAppSettings = {
 	dayStartHour: 6,
 	dayEndHour: 20,
 	allDayDisplayMode: 'header',
+	// Header defaults
+	headerCompact: false,
+	headerWeekdayFormat: 'full',
+	headerShowDate: true,
+	headerAlwaysShowMonth: false,
 	// DateStrip defaults
 	dateStripShowMoonPhases: true,
 	dateStripShowEventIndicators: true,
@@ -175,6 +187,19 @@ export const settingsStore = {
 	get allDayDisplayMode() {
 		return settings.allDayDisplayMode;
 	},
+	// Header settings
+	get headerCompact() {
+		return settings.headerCompact;
+	},
+	get headerWeekdayFormat() {
+		return settings.headerWeekdayFormat;
+	},
+	get headerShowDate() {
+		return settings.headerShowDate;
+	},
+	get headerAlwaysShowMonth() {
+		return settings.headerAlwaysShowMonth;
+	},
 	// DateStrip settings
 	get dateStripShowMoonPhases() {
 		return settings.dateStripShowMoonPhases;