Enable Nx Cloud distributed task execution and remote caching with Nx Agents

Verified steps

1. Connect the workspace to Nx Cloud by running npx nx connect; this creates an nxCloudAccessToken in nx.json and registers the workspace with cloud.nx.app
2. In your CI configuration, replace your existing build/test commands with npx nx-cloud start-ci-run --distribute-on='3 linux-medium-js' before your affected commands, then call npx nx-cloud stop-all-agents at the end
3. Run tasks with npx nx affected -t build test lint --base=origin/main so Nx Cloud knows which projects need work; the orchestrator distributes these tasks across the agent machines
4. Agent machines in CI must have the same nxCloudAccessToken available as an environment variable; set NX_CLOUD_ACCESS_TOKEN as a CI secret to override the value in nx.json for security
5. Configure end-to-end encryption by setting NX_CLOUD_ENCRYPTION_KEY to a random secret shared by all CI machines; Nx Cloud then cannot read your artifact contents at rest
6. View run details, cache hit rates, and task timing on cloud.nx.app to identify bottleneck tasks worth optimizing