Add unified IM channel plugin

plugin-src/host/build.mjs

@@ -0,0 +1,24 @@
+import { mkdir } from 'node:fs/promises';
+import { dirname, resolve } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+import { build } from 'esbuild';
+
+const sourceDirectory = dirname(fileURLToPath(import.meta.url));
+const packageRoot = resolve(sourceDirectory, '../..');
+const outputPath = resolve(packageRoot, 'lib/index.js');
+
+await mkdir(dirname(outputPath), { recursive: true });
+await build({
+  entryPoints: [resolve(sourceDirectory, 'index.mjs')],
+  bundle: true,
+  format: 'esm',
+  platform: 'node',
+  target: ['node22'],
+  packages: 'external',
+  outfile: outputPath,
+  sourcemap: false,
+  legalComments: 'none',
+});
+
+console.log(`Wrote ${outputPath}`);

plugin-src/host/index.mjs

@@ -0,0 +1,22 @@
+import { apply as applyFeishu } from '@xmanrui/dsh-feishu';
+import { apply as applyWeixin } from '@xmanrui/dsh-weixin';
+
+export const name = 'dsh-im-host';
+export const inject = ['connection', 'credentials', 'webServer'];
+
+export function createImHostPlugin(internals = {}) {
+  const startFeishu = internals.applyFeishu ?? applyFeishu;
+  const startWeixin = internals.applyWeixin ?? applyWeixin;
+  return Object.freeze({
+    name,
+    inject,
+    async apply(ctx, config = {}) {
+      await startFeishu(ctx, config.feishu ?? {});
+      await startWeixin(ctx, config.weixin ?? {});
+    },
+  });
+}
+
+export async function apply(ctx, config = {}) {
+  return createImHostPlugin().apply(ctx, config);
+}