- make_curator() now patches app.curator.load_curator_prompt directly instead
of env var, since PROMPTS_DIR is a module-level constant set at import time
- _append_rule_to_file tests patch app.curator.PROMPTS_DIR via patch.object
- test_list_content: document that passing a list raises TypeError (expected)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>