uv run python manage.py test directmail.tests.CarrierRoutePostcardTests directmail.tests.PostcardDesignPickTests
## Summary
Closes #11.
Mirrors ai_ml_operations/monica_site#15.
- Direct-mail compose can target the postcard mailing list **or** find and select one or two USPS carrier routes by ZIP (optional radius).
- Estimated cost is shown per route and for the selection (PCM design pricing, else `PCM_POSTCARD_PRICE_*` fallback).
- Selected routes order through PCM `POST /order/postcard/with-list-count` — occupant addresses are not imported into Contacts.
- Not official EDDM postage; PCM FirstClass/Standard purchased occupant lists on carrier routes.
## Test plan
- [ ] Campaign compose: mailing-list audience still quotes list size × per-piece cost.
- [ ] Switch to USPS carrier routes, search a ZIP, pick 1–2 routes, confirm household count + estimated cost.
- [ ] Saving without a selection is rejected; saving with a quote creates one contact-less Message and shows the route panel on the report.
- [ ] Send places `/order/postcard/with-list-count` (not per-recipient `/order/postcard`).
- [ ] `uv run python manage.py test directmail.tests.CarrierRoutePostcardTests directmail.tests.PostcardDesignPickTests`
## Summary
Closes#11.
- Mirror Monica: compose can use the postcard mailing list or 1–2 USPS carrier routes, with estimated cost shown.
- Place selected routes through PCM list-count orders instead of importing occupant addresses.
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Summary
Closes #11.
Mirrors ai_ml_operations/monica_site#15.
PCM_POSTCARD_PRICE_*fallback).POST /order/postcard/with-list-count— occupant addresses are not imported into Contacts.Test plan
/order/postcard/with-list-count(not per-recipient/order/postcard).uv run python manage.py test directmail.tests.CarrierRoutePostcardTests directmail.tests.PostcardDesignPickTests59bc0c3151to3a1ef797b8