feat: add browser-side image optimization pipeline + superadmin toggle - #71
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- 6-step pipeline: load → shrink to 1800px → grayscale → filter chain (grayscale(1) brightness(0.92) contrast(2.8) brightness(1.12)) → JPEG q=0.82 → recursive size guard (-200px per iter, floor 1000px) - localStorage toggle (default ON) + React hook - Silent integration in IcrScanner: 'Upload Completed Sheet Photo' replaces the simulated scan; pipeline runs in background, processed blob stashed for future OCR upload - Superadmin System Settings card: runtime toggle + pipeline stages + raw-vs-optimized size estimates Typical result: 1.5-4 MB raw photo -> 150-350 KB optimized. Processed images are kept in memory only and never persisted.
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Typical result: 1.5-4 MB raw photo -> 150-350 KB optimized. Processed images are kept in memory only and never persisted.