fix selected editing handles being covered by later-rendered polygons

[0x-mayank]

Summary

Fix selected editing handles being covered by later-rendered polygons.

Issue

Fixes #10459

Changes

• Render selected outline polygons separately from editing controls.
• Render editing controls after all polygons so they remain visible and hit-testable.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
bugs	Ready	Preview	Aug 15, 2026 2:26pm
remotion	Ready	Preview	Aug 15, 2026 2:26pm

[pullfrog]

Important

The Studio overlay reordering is correct, but the PR also deletes a @ts-expect-error in packages/media-parser/src/writers/node.ts that is still load-bearing — it will break the media-parser typecheck, and it is unrelated to this fix. Please restore that line (details inline).

Reviewed changes

• SelectedOutlineRenderer — Split each outline's rendering into two passes: all polygons first, then all editing controls last, so a later-rendered polygon can no longer cover a previously rendered element's handles. Preserves the existing per-outline control ordering and the frozen drag ordering, and leaves the UV / transform-origin layers in place.
• SelectedOutlineElement — Added optional renderControls / renderPolygon props with defaults true, gating each pass. No behavior change for non-renderer callers (there are none besides the renderer).
• media-parser/node.ts — Unrelated removal of // @ts-expect-error ahead of new Blob([file]).

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