Claude Code: add openclaw/__init__.py to fix package imports

The openclaw package was missing its __init__.py, causing imports like
'from openclaw.agents.brain_minimal import BrainMinimal' to fail.
This file exposes the internal .openclaw package.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

openclaw/__init__.py

@@ -0,0 +1,13 @@
+# OpenClaw package initialization
+# Exposes the internal .openclaw package as the top-level openclaw package
+import sys
+from pathlib import Path
+
+# Get the openclaw package directory
+_openclaw_dir = Path(__file__).parent / ".openclaw"
+
+# Add .openclaw to the module search path
+if str(_openclaw_dir) not in sys.path:
+    sys.path.insert(0, str(_openclaw_dir))
+
+__version__ = "0.1.0"