Replace front proxy with new SvelteKit frontend app

- Remove the old Hono/Bun proxy server
- Add the new `apps/frontend` SvelteKit scaffold and telemetry hook

apps/frontend/src/lib/components/ui/calendar/calendar-year-select.svelte

@@ -0,0 +1,43 @@
+<script lang="ts">
+	import { Calendar as CalendarPrimitive } from "bits-ui";
+	import { cn, type WithoutChildrenOrChild } from "$lib/utils.js";
+	import ChevronDownIcon from "@lucide/svelte/icons/chevron-down";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		value,
+		...restProps
+	}: WithoutChildrenOrChild<CalendarPrimitive.YearSelectProps> = $props();
+</script>
+
+<span
+	class={cn(
+		"has-focus:border-ring border-input has-focus:ring-ring/50 relative flex rounded-md border shadow-xs has-focus:ring-[3px]",
+		className
+	)}
+>
+	<CalendarPrimitive.YearSelect bind:ref class="absolute inset-0 opacity-0" {...restProps}>
+		{#snippet child({ props, yearItems, selectedYearItem })}
+			<select {...props} {value}>
+				{#each yearItems as yearItem (yearItem.value)}
+					<option
+						value={yearItem.value}
+						selected={value !== undefined
+							? yearItem.value === value
+							: yearItem.value === selectedYearItem.value}
+					>
+						{yearItem.label}
+					</option>
+				{/each}
+			</select>
+			<span
+				class="[&>svg]:text-muted-foreground flex h-8 items-center gap-1 rounded-md ps-2 pe-1 text-sm font-medium select-none [&>svg]:size-3.5"
+				aria-hidden="true"
+			>
+				{yearItems.find((item) => item.value === value)?.label || selectedYearItem.label}
+				<ChevronDownIcon class="size-4" />
+			</span>
+		{/snippet}
+	</CalendarPrimitive.YearSelect>
+</span>