OCE integration scenarios

Use this skill only when the user explicitly invokes oceinteg <scenario> or $oceinteg <scenario>. Do not activate it for general integration-testing requests. Follow $enterprise-testing for real-runtime prerequisites, evidence, and failure classification, then read only the selected scenario below.

Invocation	Scenario
`oceinteg main`	Main acceptance test: fresh installation, both runtime presets, repository permissions, Slack, Linear approvals, and native UI continuity.

If the scenario is missing or unknown, show the available names and ask which one to run. Do not substitute another scenario or start infrastructure work. Creating or editing this skill does not run its scenarios.

Add future scenarios as references/<scenario>.md and register them here. Keep each scenario's inputs, external effects, procedure, assertions, and cleanup in its own reference. This is an agent workflow, not an installed shell command.