p2: add quote and code-block text formatting

web/src/utils/formatMessage.tsx

@@ -108,5 +108,28 @@ function parseInline(text: string): string {
 }
 
 export function formatMessageHtml(text: string): string {
-  return parseInline(text);
+  const blocks: string[] = [];
+  const parts = text.split(/```/);
+  for (let i = 0; i < parts.length; i += 1) {
+    const part = parts[i];
+    const isCode = i % 2 === 1;
+    if (isCode) {
+      const value = escapeHtml(part.replace(/^\n+|\n+$/g, ""));
+      blocks.push(`<pre class="my-1 overflow-x-auto rounded-lg bg-slate-900/90 px-2 py-1.5 text-[12px]"><code>${value}</code></pre>`);
+      continue;
+    }
+    const lines = part.split("\n");
+    for (let lineIndex = 0; lineIndex < lines.length; lineIndex += 1) {
+      const line = lines[lineIndex];
+      if (line.startsWith("> ")) {
+        blocks.push(`<blockquote class="my-1 border-l-2 border-sky-400/80 bg-slate-800/60 px-2 py-1 text-sm">${parseInline(line.slice(2))}</blockquote>`);
+      } else {
+        blocks.push(parseInline(line));
+      }
+      if (lineIndex < lines.length - 1) {
+        blocks.push("<br/>");
+      }
+    }
+  }
+  return blocks.join("");
 }