Track bundled vendor runtime sources

vendor/Agent-Reach/agent_reach/backends/__init__.py

@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+"""Cross-channel backends.
+
+A backend here is an upstream runtime that serves MULTIPLE channels
+(e.g. OpenCLI covers xiaohongshu/reddit/bilibili/twitter through one
+browser session), as opposed to the per-platform tools probed inside
+each channel file.
+"""
+
+from .opencli import (  # noqa: F401
+    OPENCLI_EXTENSION_URL,
+    OPENCLI_PACKAGE,
+    OpenCLIStatus,
+    opencli_status,
+    opencli_summary,
+)