Minor fixes for TOC

assets/toc.js

@@ -20,7 +20,9 @@
     li.className = "toc-" + h.tagName.toLowerCase();
     var a = document.createElement("a");
     a.href = "#" + h.id;
-    a.textContent = h.textContent;
+    var clone = h.cloneNode(true);
+    clone.querySelectorAll(".btn, .muted").forEach(function (el) { el.remove(); });
+    a.textContent = clone.textContent.trim();
     li.appendChild(a);
     list.appendChild(li);
   });

diary.go

@@ -483,17 +483,14 @@ func renderDiaryMonth(fsPath, urlPath string) template.HTML {
 	for _, dayNum := range days {
 		date := time.Date(year, time.Month(monthNum), dayNum, 0, 0, 0, 0, time.UTC)
 
-		heading := formatGermanDate(date)
+		heading := date.Format("2006-01-02")
 		dayURL := path.Join(urlPath, fmt.Sprintf("%02d", dayNum)) + "/"
 		var content template.HTML
 		if dirName, ok := dayDirs[dayNum]; ok {
 			dayURL = path.Join(urlPath, dirName) + "/"
 			dayFsPath := filepath.Join(fsPath, dirName)
 			if raw, err := os.ReadFile(filepath.Join(dayFsPath, "index.md")); err == nil && len(raw) > 0 {
-				if h := extractFirstHeading(raw); h != "" {
-					heading = h
 				raw = stripFirstHeading(raw)
-				}
 				content = renderMarkdown(raw)
 			}
 		}