fix: add missing toggleUncloseaiEmbeddedModal function for floating button

- Add toggleUncloseaiEmbeddedModal function that was missing after refactoring
- Function properly toggles modal open/close state
- Export function globally for floating button onclick handler
- This fixes the floating button not appearing/working issue

src/ui.js

@@ -527,6 +527,24 @@ export function initializeSystem() {
 	initializeUncloseaiElements();
 }
 
+// Toggle function for floating button
+export async function toggleUncloseaiEmbeddedModal() {
+	console.log("toggleUncloseaiEmbeddedModal called");
+	
+	// Check if modal is already open
+	const existingModal = document.getElementById("uncloseai-embedded-modal");
+	if (existingModal && window.uncloseaiEmbeddedModalOpen) {
+		console.log("Modal is open, closing it");
+		existingModal.close();
+		document.body.removeChild(existingModal);
+		window.uncloseaiEmbeddedModalOpen = false;
+	} else {
+		console.log("Modal is closed, opening it");
+		await openUncloseaiEmbeddedModal();
+	}
+}
+
 // Export modal functions globally for onclick handlers
 window.openTTSModal = openTTSModal;
 window.openTranslateModal = openTranslateModal;
+window.toggleUncloseaiEmbeddedModal = toggleUncloseaiEmbeddedModal;