Ship Print Forge shop site (colors, photos, 3D viewer) (#2)

## Summary

- Rebrand the Django client template as Print Forge (`client_site` → `print_forge`) with shop + shipping enabled.
- Product listings support multiple photos, color variants (shared price/description/STL, per-color stock and photos), and a photo-first / 3D-second gallery.
- Public pages use 3D printer / printed-toy photography instead of leftover t-shirt mockups; beta CI deploys on `master`.

Closes #1
Infra: [server-infra#27](ai_ml_operations/server-infra#27) (easy deploy beta).

## Test plan

- [ ] Product page shows photo first, 3D model second; color swatches swap photos and stock
- [ ] Portal can upload multiple photos and per-color qty/images; STL stays shared
- [ ] Public home/about/gallery have no t-shirt mockups
- [ ] `manage.py test` passes
- [ ] After server-infra#27: beta deploy to `print-forge-preview.aimloperations.com`

Reviewed-on: #2

site/shipping/views.py

@@ -0,0 +1,86 @@
+import logging
+
+from django.contrib import messages
+from django.contrib.auth.decorators import login_required
+from django.http import HttpResponse
+from django.shortcuts import get_object_or_404, redirect, render
+from django.views.decorators.http import require_http_methods, require_POST
+
+from shipping.models import Shipment
+from shipping.services import (
+    ShippingError,
+    buy_label,
+    create_shipment_for_order,
+    pirate_ship_csv,
+    quote_rates,
+)
+from shop.models import Order
+
+logger = logging.getLogger(__name__)
+
+
+@login_required
+def shipment_list(request):
+    shipments = Shipment.objects.select_related("order")[:200]
+    labeled = Shipment.objects.filter(status=Shipment.Status.LABELED).values_list(
+        "order_id", flat=True
+    )
+    unshipped = Order.objects.filter(status=Order.Status.PAID).exclude(pk__in=labeled)
+    return render(
+        request,
+        "shipping/list.html",
+        {"shipments": shipments, "unshipped": unshipped},
+    )
+
+
+@login_required
+@require_POST
+def shipment_create(request):
+    order = get_object_or_404(Order, pk=request.POST.get("order"))
+    try:
+        weight = int(request.POST.get("weight_oz") or "16")
+    except ValueError:
+        weight = 16
+    try:
+        shipment = create_shipment_for_order(order, weight_oz=weight)
+        quote_rates(shipment)
+    except ShippingError as exc:
+        messages.error(request, str(exc))
+        return redirect("shipping:shipment_list")
+    except Exception as exc:  # noqa: BLE001
+        logger.exception("rate quote failed")
+        messages.error(request, f"Could not quote rates: {exc}")
+        return redirect("shipping:shipment_list")
+    return redirect("shipping:shipment_detail", pk=shipment.pk)
+
+
+@login_required
+def shipment_detail(request, pk):
+    shipment = get_object_or_404(Shipment.objects.select_related("order"), pk=pk)
+    return render(request, "shipping/detail.html", {"shipment": shipment})
+
+
+@login_required
+@require_POST
+def shipment_buy(request, pk):
+    shipment = get_object_or_404(Shipment, pk=pk)
+    rate_id = (request.POST.get("rate_id") or "").strip()
+    try:
+        buy_label(shipment, rate_id=rate_id)
+    except ShippingError as exc:
+        messages.error(request, str(exc))
+    except Exception as exc:  # noqa: BLE001
+        logger.exception("buy label failed")
+        messages.error(request, f"Could not buy label: {exc}")
+    else:
+        messages.success(request, f"Label created for {shipment.order.number}.")
+    return redirect("shipping:shipment_detail", pk=shipment.pk)
+
+
+@login_required
+@require_http_methods(["GET"])
+def pirate_ship_export(request):
+    body = pirate_ship_csv()
+    response = HttpResponse(body, content_type="text/csv")
+    response["Content-Disposition"] = 'attachment; filename="pirate-ship-orders.csv"'
+    return response