feat!: require PR label for processing

[dseeker]

Description

This PR adds a new feature that requires pull requests to have a specific label (default: "claudecoder") to be processed by the ClaudeCoder action. This improves control over which PRs get processed by the action.

Breaking Changes

This is a breaking change that will impact existing workflows:

• PRs now require a label (default: 'claudecoder') to be processed by the action
• Existing workflows will need to be updated to add labels to PRs that should be processed
• Workflow triggers should be updated to include the 'labeled' event type for optimal performance

Implementation Details

• Added a new required-label input parameter to the action (defaults to "claudecoder")
• Updated the main logic to check for the required label before processing a PR
• Added appropriate messages to inform users when PRs are skipped due to missing labels
• Updated documentation across README, docs/index.md, and CHANGELOG
• Fixed a bug in package.json where the major version script was incorrectly set to "minor"

Documentation Updates

• Updated README.md with information about the label requirement and workflow configuration
• Updated docs/index.md with consistent information
• Added breaking change information to CHANGELOG.md
• Updated example workflows to include the 'labeled' event type
• Added configuration examples with custom label options

Testing

• Tested with PRs with and without the required label to verify behavior
• Ensured the early exit logic works correctly when label is missing
• Confirmed appropriate comments are added to PRs without labels

This change will bump the version to 2.0.0 due to the breaking nature of the change.

[github-actions]

This PR was not processed by Claude 3.7 Sonnet because it doesn't have the required 'claudecoder' label. Add this label if you want AI assistance.

[github-actions]

✅ ClaudeCoder self-test complete! This PR has been processed by the ClaudeCoder action itself.

[github-actions]

This PR was not processed by Claude 3.7 Sonnet because it doesn't have the required 'claudecoder' label. Add this label if you want AI assistance.

[github-actions]

✅ ClaudeCoder self-test complete! This PR has been processed by the ClaudeCoder action itself.

[github-actions]

This PR was not processed by Claude 3.7 Sonnet because it doesn't have the required 'claudecoder' label. Add this label if you want AI assistance.

[github-actions]

✅ ClaudeCoder self-test complete! This PR has been processed by the ClaudeCoder action itself.

[github-actions]

🎉 This PR is included in version 1.4.0 🎉

The release is available on GitHub release

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