refactor(agents): unify subagent announce delivery pipeline

Co-authored-by: Smith Labs <SmithLabsLLC@users.noreply.github.com>
Co-authored-by: Do Cao Hieu <docaohieu2808@users.noreply.github.com>

src/infra/outbound/channel-resolution.ts

@@ -0,0 +1,73 @@
+import { resolveAgentWorkspaceDir, resolveDefaultAgentId } from "../../agents/agent-scope.js";
+import { getChannelPlugin } from "../../channels/plugins/index.js";
+import type { ChannelPlugin } from "../../channels/plugins/types.js";
+import type { OpenClawConfig } from "../../config/config.js";
+import { applyPluginAutoEnable } from "../../config/plugin-auto-enable.js";
+import { loadOpenClawPlugins } from "../../plugins/loader.js";
+import { getActivePluginRegistry, getActivePluginRegistryKey } from "../../plugins/runtime.js";
+import {
+  isDeliverableMessageChannel,
+  normalizeMessageChannel,
+  type DeliverableMessageChannel,
+} from "../../utils/message-channel.js";
+
+const bootstrapAttempts = new Set<string>();
+
+export function normalizeDeliverableOutboundChannel(
+  raw?: string | null,
+): DeliverableMessageChannel | undefined {
+  const normalized = normalizeMessageChannel(raw);
+  if (!normalized || !isDeliverableMessageChannel(normalized)) {
+    return undefined;
+  }
+  return normalized;
+}
+
+function maybeBootstrapChannelPlugin(params: {
+  channel: DeliverableMessageChannel;
+  cfg?: OpenClawConfig;
+}): void {
+  const cfg = params.cfg;
+  if (!cfg) {
+    return;
+  }
+
+  const activeRegistry = getActivePluginRegistry();
+  if ((activeRegistry?.channels?.length ?? 0) > 0) {
+    return;
+  }
+
+  const registryKey = getActivePluginRegistryKey() ?? "<none>";
+  const attemptKey = `${registryKey}:${params.channel}`;
+  if (bootstrapAttempts.has(attemptKey)) {
+    return;
+  }
+  bootstrapAttempts.add(attemptKey);
+
+  const autoEnabled = applyPluginAutoEnable({ config: cfg }).config;
+  const defaultAgentId = resolveDefaultAgentId(autoEnabled);
+  const workspaceDir = resolveAgentWorkspaceDir(autoEnabled, defaultAgentId);
+  loadOpenClawPlugins({
+    config: autoEnabled,
+    workspaceDir,
+  });
+}
+
+export function resolveOutboundChannelPlugin(params: {
+  channel: string;
+  cfg?: OpenClawConfig;
+}): ChannelPlugin | undefined {
+  const normalized = normalizeDeliverableOutboundChannel(params.channel);
+  if (!normalized) {
+    return undefined;
+  }
+
+  const resolve = () => getChannelPlugin(normalized);
+  const current = resolve();
+  if (current) {
+    return current;
+  }
+
+  maybeBootstrapChannelPlugin({ channel: normalized, cfg: params.cfg });
+  return resolve();
+}