Single Reusable SSH Session Per Device Across CLI Tasks

NetBrain currently opens a separate SSH session for each CLI command task performed against a device, including sessions triggered by Network Intent, Runbook execution, and other live data retrieval operations. This results in multiple concurrent or sequential SSH connections being established to the same device for what could be handled through a single session. This enhancement would have NetBrain establish and reuse one SSH session per device across these CLI-driven tasks, rather than opening a new session for each task type. Customers would benefit from reduced login overhead on network devices, lower risk of hitting device session limits, and more efficient CLI-based data retrieval overall.