Claude Code: Fix openclaw import - copy __init__.py to /app/openclaw/

The Dockerfile was only copying .openclaw/ but not openclaw/__init__.py,
causing import openclaw to fail silently. A2A communication requires
both files to be in place:
- /app/openclaw/__init__.py for "import openclaw"
- /app/.openclaw/ for "from agents import brain_minimal"

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

Dockerfile

@@ -19,8 +19,10 @@ COPY app.py error_handlers.py entrypoint.sh openclaw.json /app/
 COPY static/ /app/static/
 COPY frontend/ /app/frontend/
 
-# CRITICAL: Copy .openclaw to /app/.openclaw (not /app/openclaw/.openclaw)
-# The code expects /app/.openclaw/agents/ for brain imports
+# CRITICAL: Copy both openclaw/__init__.py AND .openclaw for brain imports
+# 1. openclaw/__init__.py is needed for "import openclaw" to work
+# 2. .openclaw/ is needed for "from agents import brain_minimal" to work
+COPY openclaw/__init__.py /app/openclaw/__init__.py
 COPY openclaw/.openclaw/ /app/.openclaw/
 
 # Create necessary directories with proper permissions