feat: Add supported currencies to store model (#6562)

I ultimately went with having a flat list of settings for the store. It wouldn't be very difficult to change it if we wish to do so, but for now this keeps the codebase simpler

packages/store/src/migrations/.snapshot-medusa-store.json

@@ -25,6 +25,16 @@
           "default": "'Medusa Store'",
           "mappedType": "text"
         },
+        "supported_currency_codes": {
+          "name": "supported_currency_codes",
+          "type": "text[]",
+          "unsigned": false,
+          "autoincrement": false,
+          "primary": false,
+          "nullable": false,
+          "default": "'{}'",
+          "mappedType": "array"
+        },
         "default_sales_channel_id": {
           "name": "default_sales_channel_id",
           "type": "text",

packages/store/src/migrations/InitialSetup20240227075933.ts

@@ -24,6 +24,9 @@ export class InitialSetup20240226130829 extends Migration {
       this.addSql(
         `alter table "store" add column "deleted_at" timestamptz null;`
       )
+      this.addSql(
+        `alter table "store" add column "supported_currency_codes" text[] not null default \'{}\';`
+      )
 
       this.addSql(
         'create index if not exists "IDX_store_deleted_at" on "store" (deleted_at) where deleted_at is not null;'
@@ -35,7 +38,7 @@ export class InitialSetup20240226130829 extends Migration {
       // this.addSql(`alter table "store" drop column "invite_link_template";`)
     } else {
       this.addSql(`create table if not exists "store" 
-      ("id" text not null, "name" text not null default \'Medusa Store\', 
+      ("id" text not null, "name" text not null default \'Medusa Store\', "supported_currency_codes" text[] not null default \'{}\',
       "default_sales_channel_id" text null, "default_region_id" text null, "default_location_id" text null, 
       "metadata" jsonb null, "created_at" timestamptz not null default now(), "updated_at" timestamptz not null default now(), "deleted_at" timestamptz null, 
       constraint "store_pkey" primary key ("id"));`)

packages/store/src/models/store.ts

@@ -35,6 +35,9 @@ export default class Store {
   @Property({ columnType: "text", default: "Medusa Store" })
   name: string
 
+  @Property({ type: "array", default: "{}" })
+  supported_currency_codes: string[] = []
+
   @Property({ columnType: "text", nullable: true })
   default_sales_channel_id: string | null = null