Add blog post: Bridging the Gap - Connecting Legacy Desktop Applications to Copilot Studio Agents

[jpapadimitriou]

Adds a new CAT blog post covering RPA and legacy desktop application integration with Copilot Studio Custom Agents.

The post covers:

• Current state of direct RPA invocation from Copilot Studio: documented error scenarios across all attempted integration paths, with screenshots
• Approach 1: Computer Use Agents (CUA): fully agentic, vision-based desktop automation via a step-by-step demo using a Contoso Invoicing app on a Hyper-V VM
• Approach 2: Separation of Concerns with Power Automate: leveraging an existing RPA stack as a scheduled data retrieval layer feeding a Copilot Studio agent through Dataverse
• CUA vs RPA comparison table and a "when to use each" decision guide
• Note on upcoming native RPA support /cloud flow invocation rolling out worldwide soon, direct agent invocation under active implementation
• Machine setup guidance covering both local VMs and Hosted Machines, with production recommendations