feat(tools): Phase T.1-T.4 complete - manifest system, registry, implementations, runtime, collaboration, scheduler

backend/app/tools/runtime/__init__.py

@@ -0,0 +1,16 @@
+"""
+Runtime Module
+
+Multi-runtime support for tool execution:
+- Python runtime: native Python execution
+- JavaScript runtime: Node.js stdio protocol
+- Native runtime: binary execution
+"""
+
+from tools.runtime.base import BaseRuntime
+from tools.runtime.manager import RuntimeManager
+
+__all__ = [
+    "BaseRuntime",
+    "RuntimeManager",
+]