Administer SAP BTP through the btp-mcp-server MCP tools (subaccounts, directories, entitlements, environment instances, XSUAA role collections and roles). Use whenever the user asks to create, list, update, entitle, or delete anything in their BTP global account — e.g. "create a subaccount", "entitle a service", "set up a Cloud Foundry environment", "manage role collections". Explains which tool to pick, required payloads, and how to keep responses small.