wa_llm

The `whatsapp` service in `docker-compose.base.yml` uses hardcoded default basic authentication credentials (`admin:admin`). While these are meant for an internal service, they pose a significant security risk if not changed in production. The system relies on various API keys (Anthropic, VoyageAI, Logfire) which are loaded from environment variables, which is a good practice. SQL queries use parameterized statements (`:query`, `:group_jids`), preventing common SQL injection vulnerabilities. The `/qa` command provides elevated privileges for cross-group knowledge base search, requiring careful configuration of `qa_testers` and `qa_test_groups` settings. No `eval` or direct `exec` is observed in the Python source code.