fix(language-server): don't self-close tags inside quoted attribute values

packages/language-server/src/html-service.ts

@@ -77,12 +77,37 @@ export function htmlFoldingRanges(
  * start tag, since plain HTML has no such elements outside its fixed void-element
  * list. WRNexus components (`<Card />`) are exactly that case, so we complete
  * it ourselves rather than relying on the library.
+ *
+ * The scan tracks quote state from the tag's opening `<` up to `offset` (quotes
+ * are only meaningful inside a tag) so a `/` inside an attribute value — e.g. the
+ * first slash of `href="https://..."` — never misfires as a self-close: the
+ * library already returns `null` there on purpose, because the cursor sits in an
+ * attribute value, not a tag-close position.
  */
 function selfClosingTagCompletion(text: string, offset: number): string | null {
   if (text.charAt(offset - 1) !== "/") return null;
   if (text.charAt(offset) === ">") return null;
-  const before = text.slice(0, offset);
-  return /<[A-Za-z][\w-]*(?:\s[^<>]*)?\/$/.test(before) ? ">" : null;
+
+  const tagStart = text.lastIndexOf("<", offset - 1);
+  if (tagStart < 0) return null;
+  if (!/^<[A-Za-z][\w-]*/.test(text.slice(tagStart))) return null;
+
+  let quote: '"' | "'" | null = null;
+  for (let i = tagStart + 1; i < offset - 1; i++) {
+    const ch = text[i];
+    if (quote) {
+      if (ch === quote) quote = null;
+      continue;
+    }
+    if (ch === '"' || ch === "'") {
+      quote = ch;
+      continue;
+    }
+    if (ch === "<" || ch === ">") return null;
+  }
+  if (quote) return null;
+
+  return ">";
 }
 
 /**