fix(feishu): harden routing, parsing, and media delivery

extensions/feishu/src/send.test.ts

@@ -68,4 +68,101 @@ describe("getMessageFeishu", () => {
       }),
     );
   });
+
+  it("extracts text content from post messages", async () => {
+    mockClientGet.mockResolvedValueOnce({
+      code: 0,
+      data: {
+        items: [
+          {
+            message_id: "om_post",
+            chat_id: "oc_post",
+            msg_type: "post",
+            body: {
+              content: JSON.stringify({
+                zh_cn: {
+                  title: "Summary",
+                  content: [[{ tag: "text", text: "post body" }]],
+                },
+              }),
+            },
+          },
+        ],
+      },
+    });
+
+    const result = await getMessageFeishu({
+      cfg: {} as ClawdbotConfig,
+      messageId: "om_post",
+    });
+
+    expect(result).toEqual(
+      expect.objectContaining({
+        messageId: "om_post",
+        chatId: "oc_post",
+        contentType: "post",
+        content: "Summary\n\npost body",
+      }),
+    );
+  });
+
+  it("returns text placeholder instead of raw JSON for unsupported message types", async () => {
+    mockClientGet.mockResolvedValueOnce({
+      code: 0,
+      data: {
+        items: [
+          {
+            message_id: "om_file",
+            chat_id: "oc_file",
+            msg_type: "file",
+            body: {
+              content: JSON.stringify({ file_key: "file_v3_123" }),
+            },
+          },
+        ],
+      },
+    });
+
+    const result = await getMessageFeishu({
+      cfg: {} as ClawdbotConfig,
+      messageId: "om_file",
+    });
+
+    expect(result).toEqual(
+      expect.objectContaining({
+        messageId: "om_file",
+        chatId: "oc_file",
+        contentType: "file",
+        content: "[file message]",
+      }),
+    );
+  });
+
+  it("supports single-object response shape from Feishu API", async () => {
+    mockClientGet.mockResolvedValueOnce({
+      code: 0,
+      data: {
+        message_id: "om_single",
+        chat_id: "oc_single",
+        msg_type: "text",
+        body: {
+          content: JSON.stringify({ text: "single payload" }),
+        },
+      },
+    });
+
+    const result = await getMessageFeishu({
+      cfg: {} as ClawdbotConfig,
+      messageId: "om_single",
+    });
+
+    expect(result).toEqual(
+      expect.objectContaining({
+        messageId: "om_single",
+        chatId: "oc_single",
+        contentType: "text",
+        content: "single payload",
+      }),
+    );
+  });
 });