"""Centralised prompt library for all Crystallise AI services.

Import prompts from submodules directly:
    from crystallise.prompts.screening import make_labelling_system_message
    from crystallise.prompts.criteria import exclusion_generation_system_prompt
    from crystallise.prompts.indexer import PIPELINE_SYSTEM_PROMPT
    from crystallise.prompts.registry import list_prompts

Submodules are NOT eagerly imported to avoid circular dependencies
(services reference prompts, and prompts reference service models).
"""