Added workflow for tasks and bugs assigned to the coding agent

[thejhh]

No description provided.

[Copilot]

Pull Request Overview

This PR adds a GitHub Actions workflow that automatically dispatches issue updates to a coding agent when specific conditions are met. The workflow triggers on various issue events and filters for Bug or Task types assigned to a designated coding agent.

Key changes:

• Implements issue type detection using GraphQL with label fallback
• Adds assignment filtering for the coding agent user
• Creates a repository dispatch mechanism to send qualifying issues to the aibuddy repository

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