chore: downgrade python to 3.12

[SebastienWae]

No description provided.

[Copilot]

Pull request overview

This PR downgrades the Python version requirement from 3.14 to 3.12 and adds necessary compatibility imports. The changes include updating Python version constraints across configuration files, adding from __future__ import annotations imports for forward compatibility, fixing exception handling syntax, and updating dependency locks.

Changes:

• Python version downgraded from 3.14 to 3.12 across all configuration files
• Added from __future__ import annotations imports to multiple source and test files
• Fixed exception handling syntax in sessionsync/git.py
• Updated dependency lockfile with Python 3.12 compatible wheels

Reviewed changes

Copilot reviewed 17 out of 18 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
.python-version	Updated Python version from 3.14 to 3.12
pyproject.toml	Updated requires-python and classifier to 3.12
.github/workflows/ci.yml	Updated Python version in all CI jobs to 3.12
.github/workflows/publish.yml	Updated Python version in publish workflow to 3.12
uv.lock	Updated lockfile with Python 3.12 requirements and wheels
sessionsync/git.py	Fixed exception handling syntax
Multiple .py files	Added from __future__ import annotations for compatibility

Comments suppressed due to low confidence (1)

sessionsync/git.py:4

• This file uses str | None syntax (PEP 604 union types) but is missing from __future__ import annotations at the top. While Python 3.12 supports this syntax natively at runtime, adding the import ensures consistency with other files in the project and maintains forward compatibility patterns.

def get_current_branch() -> str | None:

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