Added a shared resumable upload session service in
[ResumableUploadService.php](/Users/tyemeclifford/Documents/GH/CloudflareR2-Manager/src/Service/ResumableUploadService.php).
Wired dashboard JSON upload endpoints in
[AppController.php](/Users/tyemeclifford/Documents/GH/CloudflareR2-Manager/src/Controller/AppController.php).
Reworked the upload UI/JS to chunk files directly from the browser to
presigned R2 multipart URLs in
[app.js](/Users/tyemeclifford/Documents/GH/CloudflareR2-Manager/public/assets/app.js).
Added the dedicated iPhone/Safari side uploader at
[side-upload.php](/Users/tyemeclifford/Documents/GH/CloudflareR2-Manager/public/side-upload.php),
with its own password and fixed destination prefix via script constants,
.env, or side-upload.json.
Added
[side-upload.example.json](/Users/tyemeclifford/Documents/GH/CloudflareR2-Manager/side-upload.example.json),
ignored the real side-upload.json, and documented setup/CORS in
[README.md](/Users/tyemeclifford/Documents/GH/CloudflareR2-Manager/README.md).
Ty Clifford