[FEATURE] Cowork/Desktop: filter the scheduled-tasks left panel by run location (Desktop-only / Cloud-only / All)

Feature request

Make the scheduled-tasks list in the Claude Desktop left-hand panel filterable by where the task runs — specifically, a "Desktop tasks only" filter (and by extension, "Cloud tasks only" / "All").

Problem

I run a large number of cloud scheduled tasks that are set-and-forget automations. They dominate the left-hand panel's scheduled-tasks list, which makes the list clunky to use: the small number of desktop tasks I actually need to check on and interact with are buried among dozens of cloud entries I never need to open.

Proposed solution

• Add a filter control (dropdown, toggle, or segmented control) to the scheduled-tasks section of the left panel: All / Desktop / Cloud.
• Remember the last-selected filter across app restarts.
• Optionally, show a small badge/icon per row indicating where the task runs, so mixed views stay scannable.

Alternatives considered

• Collapsible groups (Desktop group / Cloud group) in the same panel would also solve it.
• Search within the panel helps but doesn't address the everyday "just show me my desktop tasks" case.

Context

• Claude Desktop (Cowork), heavy user of both local desktop scheduled tasks and cloud scheduled tasks.
• Related visibility issues that would pair well with this: #60667, #67992, #54524.