PHFrame 0.2.0 Alpha 1

First public alpha preview of PHFrame.\n\nHighlights:\n- Generate configurable public-health data applications\n- SQLite and PostgreSQL persistence\n- Generated CRUD APIs\n- Atomic CSV and Excel imports with audit history\n- Safe schema migration checks\n- Portable offline HTML dashboards\n- Automated tests on Python 3.10–3.12\n\nPHFrame is alpha software. Use non-sensitive data while evaluating it.