feat: load edge functions from Frameworks API in `serve`

[eduardoboucas]

Summary

Follow-up to #6735, adding support for edge functions generated with the Frameworks API to netlify serve.

[github-actions[bot]]

📊 Benchmark results

Comparing with 3262995c628a6369b5ff7da3da812993430c0d8c

• Dependency count: 1,213 (no change)
• Package size: 313 MB (no change)
• Number of ts-expect-error directives: 976 (no change)