"""
E2E provider tests for Kaizen AI Framework.

Tests LLM provider compatibility and database backends:
- OpenAI (GPT-3.5, GPT-4, GPT-4V)
- Anthropic (Claude models) - optional
- Ollama (llama3.2, bakllava, etc.)
- PostgreSQL vs SQLite backends
- Provider switching without code changes
- Multi-database persistence
"""
