enh: verify terminal connection

src/lib/components/AddTerminalServerModal.svelte

@@ -10,6 +10,8 @@
 	import XMark from '$lib/components/icons/XMark.svelte';
 	import AccessControlModal from '$lib/components/workspace/common/AccessControlModal.svelte';
 	import LockClosed from '$lib/components/icons/LockClosed.svelte';
+	import Tooltip from '$lib/components/common/Tooltip.svelte';
+	import { getTerminalConfig } from '$lib/apis/terminal';
 
 	export let show = false;
 	export let edit = false;
@@ -56,6 +58,22 @@
 		init();
 	}
 
+	const verifyHandler = async () => {
+		const _url = url.replace(/\/$/, '');
+		if (!_url) {
+			toast.error($i18n.t('Please enter a valid URL'));
+			return;
+		}
+
+		const res = await getTerminalConfig(_url, key);
+
+		if (res) {
+			toast.success($i18n.t('Server connection verified'));
+		} else {
+			toast.error($i18n.t('Server connection failed'));
+		}
+	};
+
 	const submitHandler = () => {
 		if (url === '') {
 			toast.error($i18n.t('Please enter a valid URL'));
@@ -176,6 +194,31 @@
 									/>
 								</div>
 							</div>
+
+							<Tooltip content={$i18n.t('Verify Connection')} className="self-end -mb-1">
+								<button
+									class="self-center p-1 bg-transparent hover:bg-gray-100 dark:hover:bg-gray-850 rounded-lg transition"
+									on:click={() => {
+										verifyHandler();
+									}}
+									type="button"
+									aria-label={$i18n.t('Verify Connection')}
+								>
+									<svg
+										xmlns="http://www.w3.org/2000/svg"
+										viewBox="0 0 20 20"
+										fill="currentColor"
+										aria-hidden="true"
+										class="w-4 h-4"
+									>
+										<path
+											fill-rule="evenodd"
+											d="M15.312 11.424a5.5 5.5 0 01-9.201 2.466l-.312-.311h2.433a.75.75 0 000-1.5H3.989a.75.75 0 00-.75.75v4.242a.75.75 0 001.5 0v-2.43l.31.31a7 7 0 0011.712-3.138.75.75 0 00-1.449-.39zm1.23-3.723a.75.75 0 00.219-.53V2.929a.75.75 0 00-1.5 0V5.36l-.31-.31A7 7 0 003.239 8.188a.75.75 0 101.448.389A5.5 5.5 0 0113.89 6.11l.311.31h-2.432a.75.75 0 000 1.5h4.243a.75.75 0 00.53-.219z"
+											clip-rule="evenodd"
+										/>
+									</svg>
+								</button>
+							</Tooltip>
 						</div>
 
 						<div class="flex items-center justify-between">