Add CI/CD deploy.yml via GitHub web UI

[Mosss-OS]

Description

The .github/workflows/deploy.yml file exists on disk but cannot be pushed via the GitHub API because the current OAuth token lacks the workflow scope.

Action needed

1. Copy the contents of .github/workflows/deploy.yml from the local repo
2. Go to https://github.com/Mosss-OS/webscout/actions/new
3. Paste the workflow file content
4. Commit directly to main

The workflow deploys Supabase Edge Functions and the Next.js dashboard on push to main.

File location

.github/workflows/deploy.yml