feat: message queue/interrupt system, CORS fix, mobile fixes, chat splitting

- Add message queue allowing users to send messages while agent is running
- Queue messages are injected into tool results as [USER INTERRUPT]
- Retrieve tool interrupted via Promise.race when user message arrives
- Queued messages show with 'queued' badge and cancel button
- Consumed messages repositioned and chat splits at interrupt point
- New assistant message block created after interrupt for clean flow
- Add POST /chat/cancel endpoint for cancelling queued messages
- Fix CORS to allow any origin (Tailscale/LAN access)
- Fix crypto.randomUUID fallback for non-secure contexts (HTTP)
- Fix frontend API URL derivation from page hostname
- Auto-create DB tab if missing on processMessage (foreign key fix)
- Add error logging to processMessage catch block
- Fix working directory input sync on agent switch
- Fix agent mode button to re-apply agent settings

1 files changed, 2 insertions, 1 deletions

diff --git a/packages/frontend/src/lib/components/ChatPanel.svelte b/packages/frontend/src/lib/components/ChatPanel.svelte
index 8c92e4f..82bd4ee 100644
--- a/packages/frontend/src/lib/components/ChatPanel.svelte
+++ b/packages/frontend/src/lib/components/ChatPanel.svelte
@@ -8,6 +8,7 @@ let userScrolledUp = $state(false);
 let isAutoScrolling = false;
 
 const messages = $derived(tabStore.activeTab?.messages ?? []);
+const activeTabId = $derived(tabStore.activeTab?.id);
 
 function isNearBottom(el: HTMLElement): boolean {
 	return el.scrollHeight - el.scrollTop - el.clientHeight < 64;
@@ -60,7 +61,7 @@ $effect(() => {
 				</div>
 			{/if}
 			{#each messages as message (message.id)}
-				<ChatMessageComponent {message} />
+				<ChatMessageComponent {message} tabId={activeTabId} />
 			{/each}
 		</div>