fix: msteams attachments + plugin prompt hints

Co-authored-by: Christof <10854026+Evizero@users.noreply.github.com>

src/cli/program/message/helpers.ts

@@ -5,6 +5,7 @@ import { CHANNEL_TARGET_DESCRIPTION } from "../../../infra/outbound/channel-targ
 import { defaultRuntime } from "../../../runtime.js";
 import { createDefaultDeps } from "../../deps.js";
 import { runCommandWithRuntime } from "../../cli-utils.js";
+import { ensurePluginRegistryLoaded } from "../../plugin-registry.js";
 
 export type MessageCliHelpers = {
   withMessageBase: (command: Command) => Command;
@@ -32,6 +33,7 @@ export function createMessageCliHelpers(
 
   const runMessageAction = async (action: string, opts: Record<string, unknown>) => {
     setVerbose(Boolean(opts.verbose));
+    ensurePluginRegistryLoaded();
     const deps = createDefaultDeps();
     await runCommandWithRuntime(
       defaultRuntime,

src/cli/program/message/register.send.ts

@@ -19,6 +19,7 @@ export function registerMessageSendCommand(message: Command, helpers: MessageCli
           "--buttons <json>",
           "Telegram inline keyboard buttons as JSON (array of button rows)",
         )
+        .option("--card <json>", "Adaptive Card JSON object (when supported by the channel)")
         .option("--reply-to <id>", "Reply-to message id")
         .option("--thread-id <id>", "Thread id (Telegram forum thread)")
         .option("--gif-playback", "Treat video media as GIF playback (WhatsApp only).", false),