fix: clear status after successful clipboard and constant actions

samples/calc-02/index.js

@@ -110,6 +110,15 @@ function setStatus(message, isError = false, timeoutMs = 1400) {
 	}, timeoutMs);
 }
 
+function clearStatus() {
+	clearTimeout(statusTimer);
+	statusTimer = null;
+	if (!statusLine) return;
+	statusLine.textContent = '';
+	statusLine.classList.remove('is-visible');
+	statusLine.classList.remove('is-error');
+}
+
 function normalizeStack() {
 	while (calc.stack.length > 4) {
 		calc.stack.shift();
@@ -280,7 +289,7 @@ async function copyStackValue(label) {
 	if (!value) return;
 	try {
 		await navigator.clipboard.writeText(value);
-		setStatus(`Copied ${label}`);
+		clearStatus();
 	} catch (error) {
 		setStatus('Copy unavailable', true);
 	}
@@ -381,6 +390,7 @@ pasteButton.addEventListener('click', async () => {
 	try {
 		const text = await navigator.clipboard.readText();
 		pasteTextIntoStack(text);
+		clearStatus();
 	} catch (error) {
 		setStatus('Paste unavailable', true);
 	}
@@ -427,7 +437,7 @@ function openConstMenu() {
 			pushEditingValueIfNeeded();
 			calc.push(constant.value);
 			render();
-			setStatus(`Inserted ${constant.label}`);
+			clearStatus();
 			closeConstMenu();
 			focusInput();
 		});