fix: pin SQLAlchemy>=2.0 in requirements.txt (CORE-63)

[octo-patch]

Fixes #13036

Problem

ComfyUI uses SQLAlchemy 2.0-only APIs (DeclarativeBase, mapped_column, Mapped) in app/database/models.py and app/assets/database/models.py. Without a minimum version constraint, pip can resolve SQLAlchemy 1.x, causing an ImportError that crashes startup before any try/except can intercept it.

Solution

Pin SQLAlchemy>=2.0 in requirements.txt to ensure pip installs a compatible version.

Testing

Verified that both app/database/models.py and app/assets/database/models.py use SQLAlchemy 2.0-only APIs (DeclarativeBase, mapped_column, Mapped), and the constraint aligns with what the codebase already requires implicitly.

[coderabbitai]

📝 Walkthrough

Walkthrough

The pull request updates the requirements.txt file to enforce a minimum version constraint on the SQLAlchemy dependency. Previously unconstrained, SQLAlchemy is now specified as SQLAlchemy>=2.0, requiring at least major version 2.0. This change affects only the SQLAlchemy dependency specification; all other package entries and their constraints remain unchanged.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description check	✅ Passed	The description is well-detailed and directly related to the changeset, explaining the problem, solution, and testing verification.
Linked Issues check	✅ Passed	The PR directly addresses issue #13036 by implementing the pinning solution to ensure SQLAlchemy>=2.0 is installed, meeting all coding requirements.
Out of Scope Changes check	✅ Passed	The PR contains only the necessary dependency constraint update; all changes are in-scope and directly address the linked issue requirements.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Title check	✅ Passed	The title 'fix: pin SQLAlchemy>=2.0 in requirements.txt (CORE-63)' directly and clearly describes the main change: updating the SQLAlchemy dependency constraint to >=2.0 in requirements.txt to fix a compatibility issue.

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