Feature: Admin Containers Panel

[runleveldev]

Create an admin-only panel at /containers/all.

Requirements:

• Accessible only to admin users.
• UI should match /containers as seen by normal users, but must display all containers in the system.
• Add an extra column for "user" to identify the owner of each container.
• Support query string parameters for filtering containers. Example: ?nodeId=# to show containers associated with a particular node.
  • This filter should be linked from the new /nodes page, allowing admins to quickly view containers on a specific node.

Acceptance Criteria:

• Visiting /containers/all only works for admin, returns 403 for non-admins.
• All containers are listed.
• "User" column displays owner for each container.
• Filtering works with supported query string parameters like nodeId.
• UI component is visually consistent with /containers but accommodates new requirements.