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openspec/changes/enterprise-react-file-upload/proposal.md

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+# OpenSpec Change: enterprise-react-file-upload
+
+- **Change ID**: enterprise-react-file-upload
+- **Package**: `@suaveplan/react-file-upload`
+- **Category**: react
+- **Target path**: `react/media/react-file-upload`
+- **Status**: PROPOSED
+- **Date**: 2026-04-24
+- **Reference spec**: `/mnt/s/web/suaveplan/enterprise/react-file-upload.md`
+
+---
+
+## Summary
+
+Deliver `@suaveplan/react-file-upload` on genesis from scratch at enterprise quality. Drag-and-drop / chunked-upload kit: composite `FileUpload` (Dropzone + FileList + ProgressBar), individual components, `useFileUpload` (chunking, concurrency, progress, cancellation, retry, auto-upload) and `useDropzone` (HTML5 drag-drop + click-to-browse). Pure helpers: `createFileState`, `splitFileIntoChunks`, `validateFile`, `matchesMimePattern`, `createPreviewUrl`, `revokePreviewUrl`, `formatBytes`, `calculateProgress`, `isImageFile`.
+
+---
+
+## Current-state audit (genesis)
+
+Package does not exist on genesis — fresh build.
+
+---
+
+## Available workspace deps on genesis
+
+| Package | Role |
+|---|---|
+| `@suaveplan/error` (`workspace:^`) | `FileUploadError` |
+| `@suaveplan/mime` (`workspace:^`) | MIME type validation |
+| `@suaveplan/react-translate` (`workspace:^`) | i18n |
+| `zod` (`catalog:forms`) | Upload config schemas |
+| `@opentelemetry/api` (`catalog:observability`) | `file_upload.complete` span |
+
+External: `tslib catalog:build`. React 18 peer.
+
+---
+
+## Preserved public API surface
+
+`FileUpload`, `Dropzone`, `FileList`, `ProgressBar`, `useFileUpload`, `useDropzone`, upload-engine helpers + all types.
+
+---
+
+## New additions for genesis
+
+1. **`FileUploadError`** — codes: `FILE_UPLOAD_VALIDATION_FAILED`, `FILE_UPLOAD_CHUNK_FAILED`, `FILE_UPLOAD_NETWORK_ERROR`.
+2. **`@suaveplan/mime` integration** — MIME validation via `matchesMimePattern` delegates to `@suaveplan/mime`.
+3. **Stories** — every component with default, uploading, complete, error, playground.
+4. **Playwright E2E** — file drag-drop, progress bar, cancel upload.
+
+---
+
+## File layout
+
+```text
+react/media/react-file-upload/
+  package.json
+  tsconfig.json
+  vitest.config.ts
+  src/
+    index.ts
+    upload-engine/ (ts + md + test + index)
+    dropzone/ (tsx + types + md + test + stories + index)
+    file-list/ (tsx + types + md + test + stories + index)
+    progress-bar/ (tsx + types + md + test + stories + index)
+    file-upload/ (tsx + types + md + test + stories + index)
+    hooks/
+      use-file-upload/ use-dropzone/
+    types/
+  e2e/
+    file-upload.spec.ts
+```