Currency, storefronts, purchasing (#12)

And a few other minor things, but primarily, the balance table exists and also consumable/inventory table.

apps/commerce/src/commerce.app.ts

@@ -3,6 +3,8 @@ import { useWorkersLogger } from 'workers-tagged-logger'
 
 import { withNotFound, withOnError } from '@repo/hono-helpers'
 
+import catalog from '../static/catalog-v1-all.json'
+
 import type { App } from './context'
 
 /**
@@ -29,4 +31,14 @@ const app = new Hono<App>()
 	// it as an error, so we return `false` (no purchases).
 	.get('/purchase/v1/hasspentmoney', (c) => c.json(false))
 
+	// The purchasable SKU catalog (token packs, special offers), served from the
+	// bundled static JSON. The client passes `?onlyAvailableSkus=true`; the bundled
+	// catalog is already only the available SKUs, so the param doesn't change the
+	// response.
+	.get('/api/catalog/v1/all', (c) => c.json(catalog))
+
+	// Current purchase campaigns (limited-time offers/promos). None exist, and
+	// an empty list is the client's "no active campaigns" state.
+	.get('/purchasecampaign/allcurrent/v2', (c) => c.json([]))
+
 export default app