feat: major update with network graphs, themes, todo extensions, and more

## New Features

### Network Graph Visualization (Contacts, Calendar, Todo)
- D3.js force simulation for physics-based layout
- Zoom & pan with mouse/touchpad
- Keyboard shortcuts: +/- zoom, 0 reset, Esc deselect, / search, F focus
- Filtering by tags, company/location/project, connection strength
- Shared components in @manacore/shared-ui

### Central Tags API (mana-core-auth)
- CRUD endpoints for tags
- Schema: tags table with userId, name, color, app
- Shared tag components in @manacore/shared-ui

### Custom Themes System
- Theme editor with live preview and color picker
- Community theme gallery
- Theme sharing (public, unlisted, private)
- Backend API in mana-core-auth

### Todo App Extensions
- Glass-pill design for task input and items
- Settings page with 20+ preferences
- Task edit modal with inline editing
- Statistics page with visualizations
- PWA support with offline capabilities
- Multiple kanban boards

### Contacts App Features
- Duplicate detection
- Photo upload
- Batch operations
- Enhanced favorites page with multiple view modes
- Alphabet view improvements
- Search modal

### Help System
- @manacore/shared-help-content
- @manacore/shared-help-ui
- @manacore/shared-help-types

### Other Features
- Themes page for all apps
- Referral system frontend
- CommandBar (global search)
- Skeleton loaders
- Settings page improvements

## Bug Fixes
- Network graph simulation initialization
- Database schema TEXT for user_id columns (Better Auth compatibility)
- Various styling fixes

## Documentation
- Daily report for 2025-12-10
- CI/CD deployment guide

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

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

apps/zitare/apps/web/src/app.css

@@ -4,6 +4,8 @@
 /* Scan shared packages for Tailwind classes */
 @source "../../../packages/shared-ui/src";
 @source "../../../packages/shared-theme-ui/src";
+@source "../../../packages/shared-theme-ui/src/components";
+@source "../../../packages/shared-theme-ui/src/pages";
 @source "../../../packages/web-ui/src";
 
 /* Zitare-specific CSS Variables */

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

@@ -8,7 +8,12 @@
 	import { theme } from '$lib/stores/theme';
 	import { authStore } from '$lib/stores/auth.svelte';
 	import { userSettings } from '$lib/stores/user-settings.svelte';
-	import { THEME_DEFINITIONS } from '@manacore/shared-theme';
+	import {
+		THEME_DEFINITIONS,
+		DEFAULT_THEME_VARIANTS,
+		EXTENDED_THEME_VARIANTS,
+	} from '@manacore/shared-theme';
+	import type { ThemeVariant } from '@manacore/shared-theme';
 	import {
 		isSidebarMode as sidebarModeStore,
 		isNavCollapsed as collapsedStore,
@@ -28,9 +33,19 @@
 	// Use theme store's isDark directly
 	let isDark = $derived(theme.isDark);
 
+	// Get pinned themes from user settings (extended themes only)
+	let pinnedThemes = $derived<ThemeVariant[]>(
+		(userSettings.theme?.pinnedThemes || []).filter((t): t is ThemeVariant =>
+			EXTENDED_THEME_VARIANTS.includes(t as ThemeVariant)
+		)
+	);
+
+	// Visible themes in PillNav: default + pinned extended
+	let visibleThemes = $derived<ThemeVariant[]>([...DEFAULT_THEME_VARIANTS, ...pinnedThemes]);
+
 	// Theme variant dropdown items
 	let themeVariantItems = $derived<PillDropdownItem[]>([
-		...theme.variants.map((variant) => ({
+		...visibleThemes.map((variant) => ({
 			id: variant,
 			label: THEME_DEFINITIONS[variant].label,
 			icon: THEME_DEFINITIONS[variant].icon,