chore: import upstream snapshot with attribution

packages/chat-client/openapi.ts

@@ -0,0 +1,22 @@
+import { api, signals } from '@botpress/chat-api'
+import pathlib from 'path'
+
+const main = async (argv: string[]) => {
+  const outDir = argv[0]
+  if (!outDir) {
+    throw new Error('Missing output directory')
+  }
+  const clientDir = pathlib.join(outDir, 'client')
+  const signalsDir = pathlib.join(outDir, 'signals')
+  await api.exportClient(clientDir, { generator: 'opapi' })
+  await signals.exportSchemas(signalsDir)
+}
+
+void main(process.argv.slice(2))
+  .then(() => {
+    process.exit(0)
+  })
+  .catch((err) => {
+    console.error(err)
+    process.exit(1)
+  })