add frontend code for selecting/setting the library

web/src/lib/components/ui/command/command-dialog.svelte

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+<script lang="ts">
+	import {
+		Command as CommandPrimitive,
+		Dialog as DialogPrimitive,
+		type WithoutChildrenOrChild
+	} from 'bits-ui';
+	import type { Snippet } from 'svelte';
+	import Command from './command.svelte';
+	import * as Dialog from '$lib/components/ui/dialog/index.js';
+
+	let {
+		open = $bindable(false),
+		ref = $bindable(null),
+		value = $bindable(''),
+		portalProps,
+		children,
+		...restProps
+	}: WithoutChildrenOrChild<DialogPrimitive.RootProps> &
+		WithoutChildrenOrChild<CommandPrimitive.RootProps> & {
+			portalProps?: DialogPrimitive.PortalProps;
+			children: Snippet;
+		} = $props();
+</script>
+
+<Dialog.Root bind:open {...restProps}>
+	<Dialog.Content class="overflow-hidden p-0" {portalProps}>
+		<Command
+			class="[&_[data-cmdk-group-heading]]:px-2 [&_[data-cmdk-group-heading]]:font-medium [&_[data-cmdk-group]:not([hidden])_~[data-cmdk-group]]:pt-0 [&_[data-cmdk-group]]:px-2 [&_[data-cmdk-input-wrapper]_svg]:h-5 [&_[data-cmdk-input-wrapper]_svg]:w-5 [&_[data-cmdk-input]]:h-12 [&_[data-cmdk-item]]:px-2 [&_[data-cmdk-item]]:py-3 [&_[data-cmdk-item]_svg]:h-5 [&_[data-cmdk-item]_svg]:w-5"
+			{...restProps}
+			bind:value
+			bind:ref
+			{children}
+		/>
+	</Dialog.Content>
+</Dialog.Root>

web/src/lib/components/ui/command/command-empty.svelte

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+<script lang="ts">
+	import { Command as CommandPrimitive } from 'bits-ui';
+	import { cn } from '$lib/utils.js';
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: CommandPrimitive.EmptyProps = $props();
+</script>
+
+<CommandPrimitive.Empty bind:ref class={cn('py-6 text-center text-sm', className)} {...restProps} />

web/src/lib/components/ui/command/command-group.svelte

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+<script lang="ts">
+	import { Command as CommandPrimitive, useId } from 'bits-ui';
+	import { cn } from '$lib/utils.js';
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		children,
+		heading,
+		value,
+		...restProps
+	}: CommandPrimitive.GroupProps & {
+		heading?: string;
+	} = $props();
+</script>
+
+<CommandPrimitive.Group
+	class={cn('overflow-hidden p-1 text-foreground', className)}
+	bind:ref
+	value={value ?? heading ?? `----${useId()}`}
+	{...restProps}
+>
+	{#if heading}
+		<CommandPrimitive.GroupHeading class="px-2 py-1.5 text-xs font-medium text-muted-foreground">
+			{heading}
+		</CommandPrimitive.GroupHeading>
+	{/if}
+	<CommandPrimitive.GroupItems {children} />
+</CommandPrimitive.Group>

web/src/lib/components/ui/command/command-input.svelte

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+<script lang="ts">
+	import { Command as CommandPrimitive } from 'bits-ui';
+	import Search from '@lucide/svelte/icons/search';
+	import { cn } from '$lib/utils.js';
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		value = $bindable(''),
+		...restProps
+	}: CommandPrimitive.InputProps = $props();
+</script>
+
+<div class="flex items-center border-b px-3" data-command-input-wrapper="">
+	<Search class="mr-2 size-4 shrink-0 opacity-50" />
+	<CommandPrimitive.Input
+		class={cn(
+			'flex h-10 w-full rounded-md bg-transparent py-3 text-base outline-none placeholder:text-muted-foreground disabled:cursor-not-allowed disabled:opacity-50 md:text-sm',
+			className
+		)}
+		bind:ref
+		bind:value
+		{...restProps}
+	/>
+</div>

web/src/lib/components/ui/command/command-item.svelte

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+<script lang="ts">
+	import { Command as CommandPrimitive } from 'bits-ui';
+	import { cn } from '$lib/utils.js';
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: CommandPrimitive.ItemProps = $props();
+</script>
+
+<CommandPrimitive.Item
+	class={cn(
+		'relative flex cursor-default select-none items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-none aria-selected:bg-accent aria-selected:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0',
+		className
+	)}
+	bind:ref
+	{...restProps}
+/>

web/src/lib/components/ui/command/command-link-item.svelte

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+<script lang="ts">
+	import { Command as CommandPrimitive } from 'bits-ui';
+	import { cn } from '$lib/utils.js';
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: CommandPrimitive.LinkItemProps = $props();
+</script>
+
+<CommandPrimitive.LinkItem
+	class={cn(
+		'relative flex cursor-default select-none items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-none aria-selected:bg-accent aria-selected:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0',
+		className
+	)}
+	bind:ref
+	{...restProps}
+/>

web/src/lib/components/ui/command/command-list.svelte

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+<script lang="ts">
+	import { Command as CommandPrimitive } from 'bits-ui';
+	import { cn } from '$lib/utils.js';
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: CommandPrimitive.ListProps = $props();
+</script>
+
+<CommandPrimitive.List
+	class={cn('max-h-[300px] overflow-y-auto overflow-x-hidden', className)}
+	bind:ref
+	{...restProps}
+/>

web/src/lib/components/ui/command/command-separator.svelte

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+<script lang="ts">
+	import { Command as CommandPrimitive } from 'bits-ui';
+	import { cn } from '$lib/utils.js';
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: CommandPrimitive.SeparatorProps = $props();
+</script>
+
+<CommandPrimitive.Separator bind:ref class={cn('-mx-1 h-px bg-border', className)} {...restProps} />

web/src/lib/components/ui/command/command-shortcut.svelte

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+<script lang="ts">
+	import type { WithElementRef } from 'bits-ui';
+	import type { HTMLAttributes } from 'svelte/elements';
+	import { cn } from '$lib/utils.js';
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		children,
+		...restProps
+	}: WithElementRef<HTMLAttributes<HTMLSpanElement>> = $props();
+</script>
+
+<span
+	class={cn('ml-auto text-xs tracking-widest text-muted-foreground', className)}
+	{...restProps}
+	bind:this={ref}
+>
+	{@render children?.()}
+</span>

web/src/lib/components/ui/command/command.svelte

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+<script lang="ts">
+	import { Command as CommandPrimitive } from 'bits-ui';
+	import { cn } from '$lib/utils.js';
+
+	let {
+		value = $bindable(''),
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: CommandPrimitive.RootProps = $props();
+</script>
+
+<CommandPrimitive.Root
+	class={cn(
+		'flex h-full w-full flex-col overflow-hidden rounded-md bg-popover text-popover-foreground',
+		className
+	)}
+	bind:ref
+	bind:value
+	{...restProps}
+/>

web/src/lib/components/ui/command/index.ts

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+import { Command as CommandPrimitive } from 'bits-ui';
+
+import Root from './command.svelte';
+import Dialog from './command-dialog.svelte';
+import Empty from './command-empty.svelte';
+import Group from './command-group.svelte';
+import Item from './command-item.svelte';
+import Input from './command-input.svelte';
+import List from './command-list.svelte';
+import Separator from './command-separator.svelte';
+import Shortcut from './command-shortcut.svelte';
+import LinkItem from './command-link-item.svelte';
+
+const Loading: typeof CommandPrimitive.Loading = CommandPrimitive.Loading;
+
+export {
+	Root,
+	Dialog,
+	Empty,
+	Group,
+	Item,
+	LinkItem,
+	Input,
+	List,
+	Separator,
+	Shortcut,
+	Loading,
+	//
+	Root as Command,
+	Dialog as CommandDialog,
+	Empty as CommandEmpty,
+	Group as CommandGroup,
+	Item as CommandItem,
+	LinkItem as CommandLinkItem,
+	Input as CommandInput,
+	List as CommandList,
+	Separator as CommandSeparator,
+	Shortcut as CommandShortcut,
+	Loading as CommandLoading
+};

web/src/lib/components/ui/popover/index.ts

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+import { Popover as PopoverPrimitive } from 'bits-ui';
+import Content from './popover-content.svelte';
+const Root = PopoverPrimitive.Root;
+const Trigger = PopoverPrimitive.Trigger;
+const Close = PopoverPrimitive.Close;
+
+export {
+	Root,
+	Content,
+	Trigger,
+	Close,
+	//
+	Root as Popover,
+	Content as PopoverContent,
+	Trigger as PopoverTrigger,
+	Close as PopoverClose
+};

web/src/lib/components/ui/popover/popover-content.svelte

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+<script lang="ts">
+	import { cn } from '$lib/utils.js';
+	import { Popover as PopoverPrimitive } from 'bits-ui';
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		align = 'center',
+		sideOffset = 4,
+		portalProps,
+		...restProps
+	}: PopoverPrimitive.ContentProps & {
+		portalProps?: PopoverPrimitive.PortalProps;
+	} = $props();
+</script>
+
+<PopoverPrimitive.Portal {...portalProps}>
+	<PopoverPrimitive.Content
+		bind:ref
+		{align}
+		{sideOffset}
+		class={cn(
+			'z-50 w-72 rounded-md border bg-popover p-4 text-popover-foreground shadow-md outline-none data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2',
+			className
+		)}
+		{...restProps}
+	/>
+</PopoverPrimitive.Portal>