Redesigned media detail page with tabbed settings, events, and logs

The media detail page has been rebuilt from the ground up so configuring an asset is faster and clearer.

• Player, metadata, settings, events, and logs are organized as tabs on a single page rather than separate routes.
• Media Title is shown as the page title. If you don’t change the file name during upload, the original file name is used as the Media Title.
• Private vs. public media status is surfaced inline with a tooltip explaining the playback-policy effect.
• Events and logs sections paginate independently with a log-detail modal for inspecting full payloads.
• API Activity > Logs supports proper pagination and no longer shows phantom empty states on first load.

DRM details have a dedicated sub-section with sorted entries and a tooltip explaining each policy.