Add initial SOAR framework skeleton

[GLyttek]

Summary

• add a new soar_framework package implementing a minimal SOAR framework
• include playbook engine, Ollama integration and stub APIs for SIEM, EDR and cloud services
• demonstrate evidence ledger and documentation helpers
• provide a sample playbook and update README with usage instructions

Testing

• python -m py_compile $(git ls-files '*.py') (fails: SyntaxError in existing scripts)
• pytest -q

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https://chatgpt.com/codex/tasks/task_e_683f6afd097883338c347c2df037c1f8