Adds POST /api/v1/orders/{id}/label (admin-only) that buys a shipping
label through Shippo and writes carrier + tracking + label fields back
onto the order, transitioning paid -> shipped.
realized per-shipment table is kinda bad, switched to single embedded tracking blob. since im only
shipping from my house no split is needed. adds tracking_status, tracking_status_details,
tracking_status_updated_at columns. reverse-backfills any historical shipments rows back onto orders
(idempotent, table-guarded). UpdateTracking rewritten to write to otder columns direcly
When paying the application charges the card and then sends a payment
record to the database after, in a situation where something goes wrong
between those two steps, we could potentially end up where a users card
was charged but no record on what is was charged for. The fix is to
re-order ConvertCart to write a pending order record before calling
Stripe, this way a DB record always exists if anything fails
mid-operation. This implementation uses an idempotency key keyed to the
order ID to prevent double-charges on retry. Wraps the post-charge DB
updates in a transaction so marking paid andd clearing the cart are
atomic. Adds OrderStatusFailed and a CRITICAL log for the unrecoverable
case. Includes a checkout flow doc with test cards and reconcilation
steps.
