feat(feishu): replace built-in SDK with community plugin

Replace the built-in Feishu SDK with the community-maintained
clawdbot-feishu plugin by @m1heng.

Changes:
- Remove src/feishu/ directory (19 files)
- Remove src/channels/plugins/outbound/feishu.ts
- Remove src/channels/plugins/normalize/feishu.ts
- Remove src/config/types.feishu.ts
- Remove feishu exports from plugin-sdk/index.ts
- Remove FeishuConfig from types.channels.ts

New features in community plugin:
- Document tools (read/create/edit Feishu docs)
- Wiki tools (navigate/manage knowledge base)
- Drive tools (folder/file management)
- Bitable tools (read/write table records)
- Permission tools (collaborator management)
- Emoji reactions support
- Typing indicators
- Rich media support (bidirectional image/file transfer)
- @mention handling
- Skills for feishu-doc, feishu-wiki, feishu-drive, feishu-perm

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

extensions/feishu/src/typing.ts

@@ -0,0 +1,73 @@
+import type { ClawdbotConfig } from "openclaw/plugin-sdk";
+import type { FeishuConfig } from "./types.js";
+import { createFeishuClient } from "./client.js";
+
+// Feishu emoji types for typing indicator
+// See: https://open.feishu.cn/document/server-docs/im-v1/message-reaction/emojis-introduce
+// Full list: https://github.com/go-lark/lark/blob/main/emoji.go
+const TYPING_EMOJI = "Typing"; // Typing indicator emoji
+
+export type TypingIndicatorState = {
+  messageId: string;
+  reactionId: string | null;
+};
+
+/**
+ * Add a typing indicator (reaction) to a message
+ */
+export async function addTypingIndicator(params: {
+  cfg: ClawdbotConfig;
+  messageId: string;
+}): Promise<TypingIndicatorState> {
+  const { cfg, messageId } = params;
+  const feishuCfg = cfg.channels?.feishu as FeishuConfig | undefined;
+  if (!feishuCfg) {
+    return { messageId, reactionId: null };
+  }
+
+  const client = createFeishuClient(feishuCfg);
+
+  try {
+    const response = await client.im.messageReaction.create({
+      path: { message_id: messageId },
+      data: {
+        reaction_type: { emoji_type: TYPING_EMOJI },
+      },
+    });
+
+    const reactionId = (response as any)?.data?.reaction_id ?? null;
+    return { messageId, reactionId };
+  } catch (err) {
+    // Silently fail - typing indicator is not critical
+    console.log(`[feishu] failed to add typing indicator: ${err}`);
+    return { messageId, reactionId: null };
+  }
+}
+
+/**
+ * Remove a typing indicator (reaction) from a message
+ */
+export async function removeTypingIndicator(params: {
+  cfg: ClawdbotConfig;
+  state: TypingIndicatorState;
+}): Promise<void> {
+  const { cfg, state } = params;
+  if (!state.reactionId) return;
+
+  const feishuCfg = cfg.channels?.feishu as FeishuConfig | undefined;
+  if (!feishuCfg) return;
+
+  const client = createFeishuClient(feishuCfg);
+
+  try {
+    await client.im.messageReaction.delete({
+      path: {
+        message_id: state.messageId,
+        reaction_id: state.reactionId,
+      },
+    });
+  } catch (err) {
+    // Silently fail - cleanup is not critical
+    console.log(`[feishu] failed to remove typing indicator: ${err}`);
+  }
+}