[_]: fix/upload-file-streams - #639
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… and update thumbnail handling
…le checks and adjust related tests
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AlexisMora
approved these changes
Jul 28, 2026
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File uploads (both PUT via WebDAV and the upload-file CLI command) were buffering the entire file content in memory as a single growing Buffer (BufferStream doing Buffer.concat on every chunk) just to have a copy available for thumbnail generation alongside the network upload stream. For large files this caused unnecessary memory pressure and repeated buffer reallocation.
Now it only happens on the WebDAV PUT handler.