iPhone uploads, faster quotes, and other fixes

Some of these were quietly costing shops jobs. Here's what got fixed in the last two weeks.

iPhone and iPad uploads. The iOS file picker grayed out STL, 3MF, STEP, and OBJ files in every browser, so mobile buyers couldn't upload at all. They can now, up to 150 MB a file, and a wrong file type gets a plain message.
Faster FDM and SLA prices. Uploads start earlier, and thumbnails no longer hold up pricing.
Big uploads don't hang. A 20-part upload could drop a few parts and sit on "Calculating price" forever. Uploads retry now, and a part that still fails says "This part didn't upload" with Retry upload and Remove part.
What they see is what they pay. Checkout charges exactly the parts, colors, add-ons, and total on screen, to the cent.
Lead time ties. If two lead times cost the same, the customer picks one instead of getting one picked for them.

Mark Paid on an invoice no longer moves the order to Cancelled (or emails the customer that payment was canceled).
You can move a canceled order to another status from the order page.
When you modify a quote, parts keep the colors the customer picked.
Invoice due dates land on the day you picked, in your time zone.
Numbers agree. Quote totals in the list, dashboard counts, tab badges, and customer spend match what you see when you open them.
Bigger machines. Build volume goes up to 2000 mm on X and Y, and on Z for SLA and powder (FDM stays at 1200 mm).
Order status and tracking through the API. Set an order's status and tracking numbers from your own system, and the customer gets the usual status email. The API docs have the details.
Business Settings opens on tabs, with a Payments tab that says in plain words whether you're ready to take payments.

Mark order [order number] as Shipped with tracking 1Z999AA10123456784.

Open your shop. If you want a hand, write support.