feat(cards): catalogs, trucks and networks render on the shared resource card

[roncodes]

What change does this PR introduce?

First implementation step of the Storefront UX overhaul (design canvas boards 4, 9a and 9c): the catalog, truck and network index pages move from hand-rolled boxes to the shared card anatomy Fleet-Ops uses, on Layout::Resource::CardsGrid and Layout::Resource::Card.

• Storefront::Catalog::Card: name and status in the header, the categories it contains with product counts, a seven-day hours strip, the product total, edit and delete. A draft catalog is dashed; an empty one says so. Clicking the name opens the editor.
• Storefront::Truck::Card: a Vehicle::Pill (photo, plate, online dot) as the identity, the service area and zone as subtitle, the vehicle photo as media, and a presence badge that says what matters to a store: serving, offline, inactive, or online with no catalog. Catalog count and, when the API sends it, the owning store.
• Storefront::Network::Card: logo on backdrop, online indicator, currency and member count, open, invite and delete.
• Storefront::HoursStrip: a reusable strip from any list of day_of_week / start / end records (catalog, store and product hours), with each day's hours as its title.
• Each card exposes storefront:component:<resource>:card:header|footer:start|end registry slots, like the Fleet-Ops cards.
• The catalogs and trucks pages gain the search the header already offered (a debounced task feeding the query param the routes refresh on); networks keep theirs and gain the grid's pagination.
• "Trucks": the sidebar, header, modal labels, notifications and empty states say "Trucks". The food-truck model, routes, permissions and translation keys keep their names, as agreed. The copy-pasted "Edit Food Truck" title on the catalog editor is fixed.
• food-truck model gains the online and store attributes the resource already returns.
• Styles: a storefront-card* block and storefront-hours-strip* in storefront-engine.css, mirroring the fleetops-card* values.

Why was this change needed?

The three pages rendered their own boxes with different spacing, no status, no counts and no empty states. One anatomy, restyled once in ember-ui later, is the point of the overhaul; the generic Resource::Card primitive proposed for ember-ui will replace these three thin components when it ships.

Other information

Stacked on #121 (the test-environment fixes); until #121 merges this PR shows that commit too. Target is release/v0.4.25.

Validation, run locally with the linked fleetops-data branch:

pnpm run lint          # eslint, template-lint, stylelint, intl: clean
pnpm run build         # running at PR open; result in a follow-up comment
pnpm exec ember test --filter "/hours-strip|catalog\/card|truck\/card|network\/card|Controller \| catalogs|Controller \| food-trucks|Controller \| networks\/index:/"
# running at PR open; result in a follow-up comment

New tests cover the hours strip, the three cards (content, states, actions, empty and draft cases) and the existing controller tests still pass.

i18n: new storefront.catalogs.*, storefront.trucks.*, storefront.networks.card.* and storefront.common.offline|last-modified keys in en-us only; other locales fall back to the key until translated. No API or fleetbase/postman impact; the fleetbase.io docs screenshots of the three pages will be out of date.

[roncodes]

Validation on 672665c, run locally with the linked fleetops-data branch:

pnpm run lint       # eslint, template-lint, stylelint, intl: clean
pnpm run build      # clean
pnpm exec ember test --filter "/hours-strip|catalog\/card|truck\/card|network\/card|Controller \| catalogs|Controller \| food-trucks|Controller \| networks\/index:/"
# 8 tests, 8 pass (hours strip 2, catalog card 2, truck card 2, network card 2); the catalogs, trucks and networks controller "it exists" tests pass in the same run

The first run had the two truck card tests failing; 672665c fixes both: the pill's online dot is read from the vehicle record (the shared Vehicle::Pill does not take an @online override), and a truck without a vehicle no longer asserts on photo_url and shows its placeholder instead.

[roncodes]

Superseded by the single overhaul PR (one branch, one PR targeting release/v0.4.25, per maintainer request).