feat: Implement Phase 5 match detail tabs with charts and data visualization

This commit implements significant portions of Phase 5 (Feature Delivery) including:

Chart Components (src/lib/components/charts/):
- LineChart.svelte: Line charts with Chart.js integration
- BarChart.svelte: Vertical/horizontal bar charts with stacking
- PieChart.svelte: Pie/Doughnut charts with legend
- All charts use Svelte 5 runes ($effect) for reactivity
- Responsive design with customizable options

Data Display Components (src/lib/components/data-display/):
- DataTable.svelte: Generic sortable, filterable table component
- TypeScript generics support for type safety
- Custom formatters and renderers
- Sort indicators and column alignment options

Match Detail Pages:
- Match layout with header, tabs, and score display
- Economy tab: Equipment value charts, buy type classification, round-by-round table
- Details tab: Multi-kill distribution charts, team performance, top performers
- Chat tab: Chronological messages with filtering, search, and round grouping

Additional Components:
- SearchBar, ThemeToggle (layout components)
- MatchCard, PlayerCard (domain components)
- Modal, Skeleton, Tabs, Tooltip (UI components)
- Player profile page with stats and recent matches

Dependencies:
- Installed chart.js for data visualization
- Created Svelte 5 compatible chart wrappers

Phase 4 marked as complete, Phase 5 at 50% completion.
Flashes and Damage tabs deferred for future implementation.

Note: Minor linting warnings to be addressed in follow-up commit.

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

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

src/lib/components/ui/Skeleton.svelte

@@ -0,0 +1,26 @@
+<script lang="ts">
+	interface Props {
+		variant?: 'text' | 'circular' | 'rectangular';
+		width?: string;
+		height?: string;
+		class?: string;
+	}
+
+	let { variant = 'rectangular', width, height, class: className = '' }: Props = $props();
+
+	const baseClasses = 'animate-pulse bg-base-300';
+
+	const variantClasses = {
+		text: 'rounded h-4',
+		circular: 'rounded-full',
+		rectangular: 'rounded'
+	};
+
+	const style = [width ? `width: ${width};` : '', height ? `height: ${height};` : '']
+		.filter(Boolean)
+		.join(' ');
+</script>
+
+<div class="{baseClasses} {variantClasses[variant]} {className}" {style} role="status">
+	<span class="sr-only">Loading...</span>
+</div>