refactor(line): lazy-load card command

extensions/line/index.ts

@@ -1,16 +1,48 @@
-import { defineChannelPluginEntry } from "openclaw/plugin-sdk/core";
-import { registerLineCardCommand } from "./src/card-command.js";
+import { defineChannelPluginEntry, type OpenClawPluginApi } from "openclaw/plugin-sdk/core";
 import { linePlugin } from "./src/channel.js";
 import { setLineRuntime } from "./src/runtime.js";
 
 export { linePlugin } from "./src/channel.js";
 export { setLineRuntime } from "./src/runtime.js";
 
+type RegisteredLineCardCommand = Parameters<OpenClawPluginApi["registerCommand"]>[0];
+
+let lineCardCommandPromise: Promise<RegisteredLineCardCommand> | null = null;
+
+async function loadLineCardCommand(api: OpenClawPluginApi): Promise<RegisteredLineCardCommand> {
+  lineCardCommandPromise ??= (async () => {
+    let registered: RegisteredLineCardCommand | null = null;
+    const { registerLineCardCommand } = await import("./src/card-command.js");
+    registerLineCardCommand({
+      ...api,
+      registerCommand(command) {
+        registered = command;
+      },
+    });
+    if (!registered) {
+      throw new Error("LINE card command registration unavailable");
+    }
+    return registered;
+  })();
+  return await lineCardCommandPromise;
+}
+
 export default defineChannelPluginEntry({
   id: "line",
   name: "LINE",
   description: "LINE Messaging API channel plugin",
   plugin: linePlugin,
   setRuntime: setLineRuntime,
-  registerFull: registerLineCardCommand,
+  registerFull(api) {
+    api.registerCommand({
+      name: "card",
+      description: "Send a rich card message (LINE).",
+      acceptsArgs: true,
+      requireAuth: false,
+      async handler(ctx) {
+        const command = await loadLineCardCommand(api);
+        return await command.handler(ctx);
+      },
+    });
+  },
 });