feat: price home delivery with Jadlog

FREIGHT_ADAPTER=jadlog prices "Receber em casa" through Jadlog's Simulador
de Frete from the order's billed metres and value, adding production days
to Jadlog's delivery time. The package weight is a base plus a weight per
metre from the client, with no default: the adapter refuses to start
without it and without the credentials. The cart re-quotes when the package
changes, and approval quotes again from the server-priced items. The
production stack takes the Jadlog settings, so the read-only probe runs
from the worker's console.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/api/health.py

@@ -6,7 +6,7 @@ from fastapi import APIRouter, HTTPException, Request, Response
 from ..core import db
 from ..core.auth import client_ip, owner, new_session, rate_limit
 from ..core.limits import upload_limit_bytes
-from ..core.models import Freight
+from ..core.models import FreightEstimate
 from ..runtime import (ENVIRONMENT, GUEST_SESSION_LIMIT, PART_BYTES, freight, payment,
                        require_delivery_available, storage)
 
@@ -37,12 +37,14 @@ def session(request: Request, response: Response):
     return {'environment': ENVIRONMENT, 'cart_scope': str(session_id), 'part_bytes': PART_BYTES,
             'max_upload_bytes': upload_limit_bytes(), 'payment_provider': payment.name,
             # Public by design: Mercado Pago's card form needs it in the browser.
-            'payment_public_key': os.environ.get('MP_PUBLIC_KEY', '') if payment.name == 'mercadopago' else ''}
+            'payment_public_key': os.environ.get('MP_PUBLIC_KEY', '') if payment.name == 'mercadopago' else '',
+            # The delivery service the cart quotes, or none: pickup only.
+            'freight_service': 'jadlog' if freight.name == 'jadlog' else 'mock-standard' if ENVIRONMENT == 'local' else None}
 
 @router.post('/api/freight')
-def quote_freight(body: Freight):
+def quote_freight(body: FreightEstimate):
     require_delivery_available(body.service)
     try:
-        return freight.quote(body.service, body.postal_code)
+        return freight.quote(body.service, body.postal_code, body.metres, body.declared_cents)
     except ValueError as exc:
         raise HTTPException(422, str(exc))