Add RLM (Recursive Language Models) sample

contributing/samples/rlm/.dockerignore

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+# Virtual environment
+.venv/
+venv/
+env/
+
+# Git
+.git/
+.gitignore
+
+# Python cache
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+
+# Build artifacts
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Testing
+.pytest_cache/
+.coverage
+htmlcov/
+.tox/
+.nox/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# Local files
+*.db
+*.sqlite
+logs/
+*.log
+*.jsonl
+
+# Documentation
+docs/
+*.md
+!README.md
+!adk_rlm/**/*.md
+
+# Tests
+tests/
+
+# Examples
+examples/
+
+# Deployment scripts (not needed in container)
+deployment/

contributing/samples/rlm/.gitignore

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+# Python-generated files
+__pycache__/
+*.py[oc]
+build/
+dist/
+wheels/
+*.egg-info
+
+# Virtual environments
+.venv
+
+# Environment files
+.env
+.env.*
+
+# ADK generated files
+.adk/
+*/.adk/
+
+original_rlm/
+plans/
+CLAUDE.md
+logs/
+.pytest_cache/
+sessions.db
+corpora/
+*.db 
+.ruff_cache/

contributing/samples/rlm/.python-version

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+3.12

contributing/samples/rlm/Dockerfile

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+FROM python:3.12-slim
+
+WORKDIR /app
+
+# Install uv for faster package management (rarely changes)
+RUN pip install uv
+
+# Copy only dependency specification first for better caching
+COPY pyproject.toml README.md ./
+
+# Create minimal package structure for dependency resolution
+RUN mkdir -p adk_rlm && echo '__version__ = "0.1.0"' > adk_rlm/__init__.py
+
+# Install dependencies (this layer is cached unless pyproject.toml changes)
+RUN uv pip install --system -e ".[all]" --index-url https://pypi.org/simple/
+
+# Now copy the actual source code (changes frequently)
+COPY adk_rlm/ adk_rlm/
+
+# Create logs directory
+RUN mkdir -p /app/logs
+
+# Expose port (Cloud Run uses PORT env var)
+ENV PORT=8080
+EXPOSE 8080
+
+# Run the web server
+CMD ["sh", "-c", "python -m adk_rlm.web --host 0.0.0.0 --port $PORT"]