76f98a7aeb
- Add LLM_PROVIDER env var (openai/anthropic) to switch cloud backend - Use ChatAnthropic for anthropic provider with custom base_url - Add CONTEXT_MAX_TOKENS, CONTEXT_KEEP_RECENT, SESSIONS_DIR, HISTORY_MAX_SNAPSHOTS to .env and .env.example - Add langchain-anthropic dependency to requirements.txt Note: E2E testing blocked — the configured MiniMax API key (sk-cp-...) returns 401 across all endpoints (Anthropic and OpenAI). The API key may be expired or lack text-generation model access.