Phase G5: Add platform_bridge MCP package (mcp_server + sync_client)

backend/python/platform_bridge/__init__.py

@@ -0,0 +1,24 @@
+"""
+Platform Bridge - Cloud-to-Local Agent Bridge
+==============================================
+
+A Python package providing MCP server and sync client for bridging
+Goose (local agent) with the Qihu-AIFlow cloud platform.
+
+Modules:
+- mcp_server: MCP-compatible server for Goose (stdio transport)
+- sync_client: Periodic sync manager for KB, license, usage
+- __init__: Package interface
+"""
+
+from .mcp_server import PlatformBridgeClient, PlatformBridgeMCPServer, main
+from .sync_client import SyncManager, create_sync_manager
+
+__version__ = "1.0.0"
+__all__ = [
+    "PlatformBridgeClient",
+    "PlatformBridgeMCPServer",
+    "SyncManager",
+    "create_sync_manager",
+    "main",
+]