webui: UI and routing fixes (#19586)

* chore: update webui build output

* chore: update webui build output

* fix: Scroll issues in DropdownMenuSearchable

* webui: fix redirect to root ignoring base path

* fix: Word wrapping

* fix: remove obsolete modality UI tests causing CI failures

- Remove VisionModality/AudioModality test stories
- Remove mockServerProps usage and imports
- Simplify Default test (remove dropdown interaction checks)
- Simplify FileAttachments test (remove mocks)

* feat: Improve formatting performance time

---------

Co-authored-by: Pascal <admin@serveurperso.com>

tools/server/webui/src/lib/components/app/misc/DropdownMenuSearchable.svelte

@@ -0,0 +1,88 @@
+<script lang="ts">
+	import type { Snippet } from 'svelte';
+	import * as DropdownMenu from '$lib/components/ui/dropdown-menu';
+	import { cn } from '$lib/components/ui/utils';
+	import { SearchInput } from '$lib/components/app';
+
+	interface Props {
+		open?: boolean;
+		onOpenChange?: (open: boolean) => void;
+		placeholder?: string;
+		searchValue?: string;
+		onSearchChange?: (value: string) => void;
+		onSearchKeyDown?: (event: KeyboardEvent) => void;
+		align?: 'start' | 'center' | 'end';
+		contentClass?: string;
+		emptyMessage?: string;
+		isEmpty?: boolean;
+		disabled?: boolean;
+		trigger: Snippet;
+		children: Snippet;
+		footer?: Snippet;
+	}
+
+	let {
+		open = $bindable(false),
+		onOpenChange,
+		placeholder = 'Search...',
+		searchValue = $bindable(''),
+		onSearchChange,
+		onSearchKeyDown,
+		align = 'start',
+		contentClass = 'w-72',
+		emptyMessage = 'No items found',
+		isEmpty = false,
+		disabled = false,
+		trigger,
+		children,
+		footer
+	}: Props = $props();
+
+	function handleOpenChange(newOpen: boolean) {
+		open = newOpen;
+
+		if (!newOpen) {
+			searchValue = '';
+			onSearchChange?.('');
+		}
+
+		onOpenChange?.(newOpen);
+	}
+</script>
+
+<DropdownMenu.Root bind:open onOpenChange={handleOpenChange}>
+	<DropdownMenu.Trigger
+		{disabled}
+		onclick={(e) => {
+			e.preventDefault();
+			e.stopPropagation();
+		}}
+	>
+		{@render trigger()}
+	</DropdownMenu.Trigger>
+
+	<DropdownMenu.Content {align} class={cn(contentClass, 'pt-0')}>
+		<div class="sticky top-0 z-10 mb-2 bg-popover p-1 pt-2">
+			<SearchInput
+				{placeholder}
+				bind:value={searchValue}
+				onInput={onSearchChange}
+				onKeyDown={onSearchKeyDown}
+			/>
+		</div>
+
+		<div class={cn('overflow-y-auto')}>
+			{@render children()}
+
+			{#if isEmpty}
+				<div class="px-2 py-3 text-center text-sm text-muted-foreground">{emptyMessage}</div>
+			{/if}
+		</div>
+
+		{#if footer}
+			<DropdownMenu.Separator />
+
+			{@render footer()}
+		{/if}
+	</DropdownMenu.Content>
+</DropdownMenu.Root>

tools/server/webui/src/lib/components/app/misc/MarkdownContent.svelte

@@ -486,6 +486,8 @@
 		text-decoration: underline;
 		text-underline-offset: 2px;
 		transition: color 0.2s ease;
+		overflow-wrap: anywhere;
+		word-break: break-all;
 	}
 
 	div :global(a:hover) {