MR: Pending ## Description As a GitLab Instance Administrator or Platform Admin, I want to be able to see all remote development workspaces across all active agents in a single view. This will help me manage cloud resource consumption and quickly troubleshoot for my team. ## Acceptance Criteria TODO: Fill out (required) - [ ] A user with sufficient permissions can see a top-level `Workspaces` navigation item - [ ] The list of workspaces includes all active workspaces across all configured agents ## Technical Requirements TODO: Fill out or delete \[If applicable, please list out any technical requirements for this feature/enhancement.\] ## Design Requirements TODO: Fill out or delete \[If applicable, please provide a link to the design specifications for this feature/enhancement.\] ## Impact Assessment TODO: Fill out or delete \[Please describe the impact this feature/enhancement will have on the user experience and/or the product as a whole.\] ## User Story TODO: Fill out or delete \[Provide a user story to illustrate the use case for this feature/enhancement. Include examples to help communicate the intended functionality.\]