v0.4.0

[pavelmaksimov25]

Description

This pull request introduces several key improvements focused on Docker support, environment configuration, and Slack message handling.

The core changes include adding production-ready Docker configuration and documentation, standardizing environment variables for better clarity, and performing a significant refactoring of the SlackMessage entity and database schema to use a composite primary key for improved data integrity.

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1. ⚠️ Breaking Changes

• The database schema for the slack_messages table has been updated to use a composite primary key of pr_number and gh_repository. It previously only used pr_number.
• Action Required: You must run the latest database migration to update your schema. For more details on the upgrade path, please refer to the Upgrade Documentation.

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2. 🐛 Fixes

• Resolved incorrect message updates when multiple repositories are registered in the application. (Fixes Message is not updated when multiple repositories with the same RP number #15)
• Ignored new Draft PR creation events to prevent the bot from attempting to process a PR that hasn't been marked as ready for review.

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3. ✨ Features & Improvements

• Introduced a production-ready Docker environment to significantly simplify the deployment and installation process of the PR bot. See Production Docker Documentation for usage instructions.
• Refactored the SlackMessage entity and related code to enforce data integrity using the new composite primary key.