Wires up `window.powerplatformAPI` namespace calls (environment management, governance, licensing, analytics, and the rest of the Power Platform REST surface) and the Entra app registration prerequisites they depend on. Use when asked to "call the Power Platform environment management API", "list environments/governance policies/licensing subscriptions from my tool", "check whether this connection is enabled for Power Platform API", "query analytics/app management/Copilot Studio/PowerApps/PowerAutomate/PowerPages from my tool", or when a `powerplatformAPI` call is failing/unauthorized.
