feat: long status lines above a reply can be expanded to their full text (#32532)

Status messages above a reply, such as the ones functions and tools send, were always cut to one line, so a longer message like a token usage summary could never be read in full, especially when several models answer side by side. Clicking a single status line now shows its full text, and when there are several, clicking opens the status history with every entry in full. Status lines with their own view, like web search results, are unchanged.

Fixes #30056

src/lib/components/chat/Messages/ResponseMessage/StatusHistory.svelte

@@ -39,7 +39,7 @@
 				}}
 			>
 				<div class="flex items-start gap-2">
-					<StatusItem {status} />
+					<StatusItem {status} clamp={!showHistory || history.length > 1} />
 				</div>
 			</button>
 
@@ -64,7 +64,7 @@
 										{/if}
 									</div>
 
-									<StatusItem {status} done={true} />
+									<StatusItem {status} done={true} clamp={false} />
 								</div>
 							{/each}
 						</div>

src/lib/components/chat/Messages/ResponseMessage/StatusHistory/StatusItem.svelte

@@ -7,6 +7,7 @@
 
 	export let status = null;
 	export let done = false;
+	export let clamp = true;
 </script>
 
 {#if !status?.hidden}
@@ -127,7 +128,8 @@
 				<div
 					class="{(done || status?.done) === false
 						? 'shimmer'
-						: ''} text-gray-500 dark:text-gray-500 text-[0.9375rem] line-clamp-1 text-wrap"
+						: ''} text-gray-500 dark:text-gray-500 text-[0.9375rem] text-wrap"
+					class:line-clamp-1={clamp}
 				>
 					<!-- $i18n.t(`Searching "{{searchQuery}}"`) -->
 					{#if status?.description?.includes('{{searchQuery}}')}