ADR-001 documents the decision to use a separate Python container for
OCR (Surya + Kraken), the interface contract, and why alternatives
like Tess4J were rejected.
ADR-002 documents the decision to store polygon annotations as JSONB
with a 4-point CHECK constraint, backed by an AttributeConverter.
Refs #226, #227
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
