Revert squash commit 8014f782d3 while
preserving the 86 commits subsequently merged to master. Restore SQLAlchemy
1.4.54 and Flask-SQLAlchemy 2.5.1 behavior, including compatible dialect
bounds, ORM/session handling, and warning coverage.
Requirements were regenerated with ./scripts/uv-pip-compile.sh using the
repository's Python 3.11 Docker workflow. The revert applied without textual
conflicts. Post-merge session/savepoint and DuckDB changes were retained and
verified against SQLAlchemy 1.4; no post-#42803 commit required an additional
compatibility change.
Amin Ghadersohi
ec621b34be