Add Ledger and Band template families with decor primitives

Crimson Grid, Tangerine Ledger, Slate Band and Teal Swoosh are rebuilt from
the Canva PDFs with grid and band tables that survive page breaks,
full-bleed fixed bands, pennant tabs, gradient corner swooshes with
keep-outs, Carbon icon circles, and the user's logo in the measured slot
(knockout or white chip on the dark Slate band). Adds static Poppins
500-700 and Inter fonts. Thumbnails regenerated for all eight templates;
the item-count sweeps run in their own test file.

src/pdf/templates/catalog.ts

@@ -5,7 +5,7 @@
 export interface TemplateCatalogEntry {
   id: string;
   name: string;
-  family: "classic" | "neutral";
+  family: "classic" | "neutral" | "ledger" | "band";
   /** Static PNG from /public, written by scripts/thumbnails.mjs (sample data, not the user's invoice). */
   thumbnail: string;
   badge?: "Matches your original format";
@@ -16,6 +16,8 @@ export interface TemplateCatalogEntry {
 export const FAMILY_LABELS: Record<TemplateCatalogEntry["family"], string> = {
   classic: "Classic",
   neutral: "Neutral",
+  ledger: "Ledger",
+  band: "Band",
 };
 
 /** Picker order: Classic first, Linea (the vendor's original format) second. */
@@ -24,6 +26,10 @@ export const TEMPLATE_CATALOG: readonly TemplateCatalogEntry[] = [
   { id: "linea", name: "Linea", family: "neutral", thumbnail: "/templates/linea.png", badge: "Matches your original format", logoOptIn: true },
   { id: "monogram", name: "Monogram", family: "neutral", thumbnail: "/templates/monogram.png" },
   { id: "serenity", name: "Serenity", family: "neutral", thumbnail: "/templates/serenity.png" },
+  { id: "crimson-grid", name: "Crimson Grid", family: "ledger", thumbnail: "/templates/crimson-grid.png" },
+  { id: "tangerine-ledger", name: "Tangerine Ledger", family: "ledger", thumbnail: "/templates/tangerine-ledger.png" },
+  { id: "slate-band", name: "Slate Band", family: "band", thumbnail: "/templates/slate-band.png" },
+  { id: "teal-swoosh", name: "Teal Swoosh", family: "band", thumbnail: "/templates/teal-swoosh.png" },
 ];
 
 /** The entry for an id; an unknown id falls back to Classic, like getTemplate. */