chore(deps): bump the sqlalchemy group in /backend with 3 updates

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Bumps the sqlalchemy group in /backend with 3 updates: sqlalchemy, asyncpg and alembic.

Updates sqlalchemy from 2.0.43 to 2.0.49

Release notes

Sourced from sqlalchemy's releases.

2.0.49

Released: April 3, 2026

orm

• [orm] [bug] Fixed issue where _orm.Session.get() would bypass the identity map and emit unnecessary SQL when with_for_update=False was passed, rather than treating it equivalently to the default of None. Pull request courtesy of Joshua Swanson.

  References: #13176

• [orm] [bug] Fixed issue where chained _orm.joinedload() options would not be applied correctly when the final relationship in the chain is declared on a base mapper and accessed through a subclass mapper in a _orm.with_polymorphic() query. The path registry now correctly computes the natural path when a property declared on a base class is accessed through a path containing a subclass mapper, ensuring the loader option can be located during query compilation.

  References: #13193

• [orm] [bug] [inheritance] Fixed issue where using _orm.Load.options() to apply a chained loader option such as _orm.joinedload() or _orm.selectinload() with _orm.PropComparator.of_type() for a polymorphic relationship would not generate the necessary clauses for the polymorphic subclasses. The polymorphic loading strategy is now correctly propagated when using a call such as joinedload(A.b).options(joinedload(B.c.of_type(poly))) to match the behavior of direct chaining e.g. joinedload(A.b).joinedload(B.c.of_type(poly)).

  References: #13202

• [orm] [bug] [inheritance] Fixed issue where using chained loader options such as _orm.selectinload() after _orm.joinedload() with _orm.PropComparator.of_type() for a polymorphic relationship would not properly apply the chained loader option. The loader option is now correctly applied when using a call such as joinedload(A.b.of_type(poly)).selectinload(poly.SubClass.c) to eagerly load related objects.

  References: #13209

typing

• [typing] [bug] Fixed a typing issue where the typed members of :data:.func would return the appropriate class of the same name, however this creates an issue for

... (truncated)

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Updates asyncpg from 0.30.0 to 0.31.0

Release notes

Sourced from asyncpg's releases.

v0.31.0

Enable Python 3.14 with experimental subinterpreter/freethreading support.

Improvements

• Add Python 3.14 support, experimental subinterpreter/freethreading support (#1279) (by @​elprans in 9e42642b)

• Avoid performing type introspection on known types (#1243) (by @​elprans in 5c9986c4)

• Make prepare() not use named statements by default when cache is disabled (#1245) (by @​elprans in 5b14653e)

• Implement connection service file functionality (#1223) (by @​AndrewJackson2020 in 1d63bb15)

Fixes

• Fix multi port connection string issue (#1222) (by @​AndrewJackson2020 in 01c0db7b)

• Avoid leaking connections if _can_use_connection fails (#1269) (by @​yuliy-openai in e94302d2)

Other

• Drop support for EOL Python 3.8 (#1281) (by @​elprans in 6c2c4904)

Commits

• 71775a6 asyncpg v0.31.0
• 508cae6 Test on PostgreSQL 18 (#1290)
• e534e5f Bump cibuildwheel
• 07fe512 Bump pgproto
• 648b35f Bump Cython to 3.2.1 (#1288)
• 9e42642 Add Python 3.14 support, experimental subinterpreter/freethreading support (#...
• 6fe1c49 Move development deps away from extras and into dependency groups (#1280)
• 7a54816 Fix a couple of missed Python version guards
• 6c2c490 Drop support for EOL Python 3.8 (#1281)
• 4c60ae8 Bump version to 0.31.0.dev0
• Additional commits viewable in compare view

Updates alembic from 1.16.5 to 1.18.4

Release notes

Sourced from alembic's releases.

1.18.4

Released: February 10, 2026

bug

• [bug] [operations] Reverted the behavior of Operations.add_column() that would automatically render the "PRIMARY KEY" keyword inline when a Column with primary_key=True is added. The automatic behavior, added in version 1.18.2, is now opt-in via the new Operations.add_column.inline_primary_key parameter. This change restores the ability to render a PostgreSQL SERIAL column, which is required to be primary_key=True, while not impacting the ability to render a separate primary key constraint. This also provides consistency with the Operations.add_column.inline_references parameter and gives users explicit control over SQL generation.

  To render PRIMARY KEY inline, use the Operations.add_column.inline_primary_key parameter set to True:

  op.add_column( "my_table", Column("id", Integer, primary_key=True), inline_primary_key=True )References: #1232

1.18.3

Released: January 29, 2026

bug

• [bug] [autogenerate] Fixed regression in version 1.18.0 due to #1771 where autogenerate would raise NoReferencedTableError when a foreign key constraint referenced a table that was not part of the initial table load, including tables filtered out by the EnvironmentContext.configure.include_name callable or tables in remote schemas that were not included in the initial reflection run.

  The change in #1771 was a performance optimization that eliminated additional reflection queries for tables that were only referenced by foreign keys but not explicitly included in the main reflection run. However, this optimization inadvertently removed the creation of Table objects for these referenced tables, causing autogenerate to fail when processing foreign key constraints that pointed to them.

  The fix creates placeholder Table objects for foreign key targets

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