feat(release): Add Homebrew tap update trigger

[shivasurya]

Summary

• Adds automatic Homebrew tap formula update trigger to release workflow
• After all release assets are uploaded, dispatches to shivasurya/homebrew-tap to create an update PR

Requirements

Before this will work, you need to:

1. Create a GitHub PAT (fine-grained) at https://github.com/settings/tokens?type=beta
   • Repository access: Select shivasurya/homebrew-tap
   • Permissions: Contents (Read and write), Pull requests (Read and write)
2. Add the PAT as a secret named TAP_GITHUB_TOKEN at https://github.com/shivasurya/code-pathfinder/settings/secrets/actions

Flow

Tag pushed → Release workflow → Binaries built → Release created → Dispatch to homebrew-tap → Update PR created

🤖 Generated with Claude Code

[safedep]

SafeDep Report Summary

No dependency changes detected. Nothing to scan.

_{This report is generated by SafeDep Github App}