chore(release): prepare v0.9.3

[jack-arturo]

This pull request introduces several important improvements and fixes for the 0.9.3 release of AutoMem. The update addresses a critical bug, enhances the CI/CD pipeline, and enforces consistent code style throughout the codebase.

Bug fix:

• Fixed a critical issue by importing the missing RECALL_EXPANSION_LIMIT, which previously caused crashes when using expansion features.

CI/CD enhancements:

• Added a GitHub Actions CI workflow to test against Python 3.10, 3.11, and 3.12.
• Introduced pre-commit hooks for code quality, including Black formatting (100 char line length), isort import sorting, Flake8 syntax checking, conventional commit validation, and secret detection.
• Integrated release-please for automated versioning and releases.

Code style:

• Applied consistent formatting across the entire codebase using Black and isort.

[coderabbitai]

📝 Walkthrough

Walkthrough

Added changelog entry for version 0.9.3 documenting a bug fix for RECALL_EXPANSION_LIMIT import crash, CI/CD infrastructure improvements including GitHub Actions workflows and pre-commit hooks for code quality enforcement, and style standardization updates.

Changes

Cohort / File(s)	Summary
Changelog documentation CHANGELOG.md	Added version 0.9.3 entry (2025-12-10) documenting: fixed RECALL_EXPANSION_LIMIT import crash, GitHub Actions CI/CD workflow setup, pre-commit hooks configuration (Black, isort, Flake8, commit validation, secret detection), release-please automation, and style improvements

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

• Documentation-only change with no functional code modifications
• Changelog entries are typically straightforward to verify

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main objective of the pull request: preparing the v0.9.3 release with bug fixes and CI/CD improvements.
Description check	✅ Passed	The description is directly related to the changeset, providing detailed information about the bug fix, CI/CD enhancements, and code style improvements included in the release.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch release/v0.9.3

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 0e38d97 and 9c0df3e.

📒 Files selected for processing (1)

• CHANGELOG.md (1 hunks)

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• GitHub Check: coverage

🔇 Additional comments (1)

CHANGELOG.md (1)

5-22: Excellent changelog entry for v0.9.3 release.

The new entry clearly documents the critical import bug fix, CI/CD infrastructure improvements, and code style changes. The content accurately reflects the PR objectives, is well-organized, and follows the existing changelog format. The date aligns with the PR creation timestamp.

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