fix(databricks): lazily create memtable volume at first use

docs: additional notes on AI policy

fix(snowflake): fix return type of SnowflakeBackend.get_schema()

feat: add IntoMemtable TypeAlias

docs(relations): enhance docstrings for pivot_wider to clarify lazy evaluation parameter

feat(snowflake): implement hexdigest using SHA2/MD5

feat(bigquery): add timestamp diff support (#11944)

fix(impala): generate INSERT with explicit column order, quote identifiers and strings (#11942)

feat(bigquery): add datediff support (#11946)

docs(homepage): update altair url (#11941)

chore(deps): update ghcr.io/astral-sh/uv docker tag to v0.10.4 (#11917)

chore(deps): update pypa/gh-action-pypi-publish digest to cef2210 (#11921)

feat(duckdb): allow `table_name` when reading xlsx

docs(backends): update Sankey fig with latest list (#11927)

docs(AI): add policy on usage of coding assistants and respecting mai… (#11916)