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James Russo
7778c093b6
## What Allow Studio Preview to serve an asset reached through a project-local symlink whose target is in a shared directory outside the project, including browser-hostile video assets that need an authoring proxy. ## Why Preview rejected these assets with a 404 while the renderer accepted the same path. The initial static-route fix still failed for HEVC, ProRes, AV1, and VP9 assets because the proxy transcoder rejected the external target. ## How Use lexical project-root containment for the read-only static asset route and proxy source request. The transcoder canonicalizes the target for ffmpeg and includes that identity in its cache key, while keeping the proxy cache inside the project. Composition source paths retain canonical containment because preview can persist their data-hf-id values. ## Test plan - [x] Unit tests added/updated - [x] `bun run --cwd packages/studio-server test` (397 tests) - [x] Studio Server typecheck, oxlint, and oxfmt - [x] External-symlinked hostile-video proxy route regression - [x] Static-route traversal regression - [ ] Documentation updated (not applicable)