Trim trailing punctuation from context cues

index.html

@@ -120,7 +120,8 @@
         const turn = document.createElement("p");
         const speaker = speakers[index];
         const context = contexts[index];
-        const contextBadge = context ? ` <span class="context-cue">${escapeHtml(context)}</span>` : "";
+        const cleanContext = context ? String(context).replace(/[，,。.!！?？;；:：、\s]+$/u, "") : "";
+        const contextBadge = cleanContext ? ` <span class="context-cue">${escapeHtml(cleanContext)}</span>` : "";
         const escapedText = escapeHtml(text);
         if (speaker !== undefined && speaker !== "") {
           turn.innerHTML = `<strong>[S${Number(speaker) + 1}]</strong> ${escapedText}${contextBadge}`;