A global manufacturing company wants an agentic solution with three capabilities: (1) employees ask questions grounded in Microsoft 365 documents and Teams chats from within their normal productivity apps, (2) a customer-facing web and WhatsApp bot that answers warranty questions with low-code authoring by a business team, and (3) a high-throughput backend agent that orchestrates several specialized reasoning models against proprietary telemetry data, requiring custom code and fine-grained control. As the solutions architect, which mapping of capabilities to Microsoft platforms best fits the requirements?