Channels: add Feishu/Lark support

src/channels/plugins/outbound/feishu.ts

@@ -0,0 +1,52 @@
+import type { ChannelOutboundAdapter } from "../types.js";
+import { chunkMarkdownText } from "../../../auto-reply/chunk.js";
+import { getFeishuClient } from "../../../feishu/client.js";
+import { sendMessageFeishu } from "../../../feishu/send.js";
+
+function resolveReceiveIdType(target: string): "open_id" | "union_id" | "chat_id" {
+  const trimmed = target.trim().toLowerCase();
+  if (trimmed.startsWith("ou_")) {
+    return "open_id";
+  }
+  if (trimmed.startsWith("on_")) {
+    return "union_id";
+  }
+  return "chat_id";
+}
+
+export const feishuOutbound: ChannelOutboundAdapter = {
+  deliveryMode: "direct",
+  chunker: (text, limit) => chunkMarkdownText(text, limit),
+  chunkerMode: "markdown",
+  textChunkLimit: 2000,
+  sendText: async ({ to, text, accountId }) => {
+    const client = getFeishuClient(accountId ?? undefined);
+    const result = await sendMessageFeishu(
+      client,
+      to,
+      { text },
+      {
+        receiveIdType: resolveReceiveIdType(to),
+      },
+    );
+    return {
+      channel: "feishu",
+      messageId: result?.message_id || "unknown",
+      chatId: to,
+    };
+  },
+  sendMedia: async ({ to, text, mediaUrl, accountId }) => {
+    const client = getFeishuClient(accountId ?? undefined);
+    const result = await sendMessageFeishu(
+      client,
+      to,
+      { text: text || "" },
+      { mediaUrl, receiveIdType: resolveReceiveIdType(to) },
+    );
+    return {
+      channel: "feishu",
+      messageId: result?.message_id || "unknown",
+      chatId: to,
+    };
+  },
+};