feat(feishu): sync community contributions from clawdbot-feishu (#12662)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

extensions/feishu/src/send.ts

@@ -1,6 +1,6 @@
 import type { ClawdbotConfig } from "openclaw/plugin-sdk";
 import type { MentionTarget } from "./mention.js";
-import type { FeishuSendResult } from "./types.js";
+import type { FeishuSendResult, ResolvedFeishuAccount } from "./types.js";
 import { resolveFeishuAccount } from "./accounts.js";
 import { createFeishuClient } from "./client.js";
 import { buildMentionedMessage, buildMentionedCardContent } from "./mention.js";
@@ -281,18 +281,22 @@ export async function updateCardFeishu(params: {
 /**
  * Build a Feishu interactive card with markdown content.
  * Cards render markdown properly (code blocks, tables, links, etc.)
+ * Uses schema 2.0 format for proper markdown rendering.
  */
 export function buildMarkdownCard(text: string): Record<string, unknown> {
   return {
+    schema: "2.0",
     config: {
       wide_screen_mode: true,
     },
-    elements: [
-      {
-        tag: "markdown",
-        content: text,
-      },
-    ],
+    body: {
+      elements: [
+        {
+          tag: "markdown",
+          content: text,
+        },
+      ],
+    },
   };
 }