v0.55.0

What's Changed

• feat(data-dictionary): add system metadata policy by @cofin in #614
• ci: retry SQL Server ODBC package download by @cofin in #622
• feat(data-dictionary): add BigQuery and Spanner metadata packs by @cofin in #612
• feat(data-dictionary): add transport metadata profiles by @cofin in #616
• feat(data-dictionary): add DDL dependency graph by @cofin in #615
• feat(data-dictionary): add PostgreSQL and Cockroach metadata packs by @cofin in #607
• feat(data-dictionary): add SQL Server catalog metadata by @cofin in #608
• feat(data-dictionary): add Oracle metadata and DBMS_METADATA DDL by @cofin in #609
• fix: remove DuckDB deprecation warning from select dispatch by @cofin in #625
• fix(data-dictionary): align oracle metadata contract by @cofin in #627
• feat(data-dictionary): add SQLite and DuckDB metadata packs by @cofin in #611
• feat(data-dictionary): add MySQL and MariaDB metadata packs by @cofin in #610
• docs(data-dictionary): add support matrix and migration guide by @cofin in #613
• fix: correctness bug batch across drivers, builder, litestar, migrations, and loader by @cofin in #628
• fix: align execute_script parameter embedding and empty execute_many across adapters by @cofin in #629
• fix(drivers): accurate transaction state, savepoints, and native continue-on-error semantics by @cofin in #632
• fix: consolidate streaming, Arrow, and event contracts by @cofin in #633
• perf: defer optional typing imports by @cofin in #634
• feat: improve event transport throughput by @cofin in #635
• refactor: consolidate drivers, builders, migrations, and integrations by @cofin in #637
• feat(builder): consolidate expression construction by @cofin in #639
• refactor(adk): consolidate store implementations by @cofin in #638
• fix(adapters): resolve DuckDB extension, Arrow NULL-typing, and MSSQL row-format bugs by @cofin in #641

Full Changelog: v0.54.3...v0.55.0