Enrich contacts with verified emails and phone numbers

[Placeholder] You can now assign issues in Linear to GitHub Copilot coding agent, GitHub’s asynchronous, autonomous background agent.

When you assign a Linear issue to Copilot, it will:

1. Analyze the issue contents and open a draft pull request
2. Work independently in its own ephemeral development environment, powered by GitHub Actions. Within this environment, Copilot can explore your code, make changes, run automated tests and linters, and more.
3. Stream progress updates back to your Linear activity timeline
4. Request a pull request review from you when work is completed

[Placeholder] When you assign a Linear issue to Copilot, it will:

1. Analyze the issue contents and open a draft pull request
2. Work independently in its own ephemeral development environment,
3. Stream progress updates back to your Linear activity timeline