Add StoreKit history and modernize admin console

Expose ledger-backed cross-device purchase history while shipping the tested React admin redesign in the same reproducible deployment revision.

src/test/kotlin/com/osglab/account/config/DeploymentConsistencyTest.kt

@@ -77,6 +77,26 @@ class DeploymentConsistencyTest : FunSpec({
         rates shouldContain "1,\n    1000,\n    1,\n    400,"
     }
 
+    test("StoreKit history remains ledger backed, indexed, and privacy minimized") {
+        val historyIndex = root.read(
+            "src/main/resources/db/migration/V15__storekit_purchase_history_index.sql",
+        )
+        historyIndex shouldContain
+            "ON storekit_credit_purchases (user_id, purchased_at, transaction_id)"
+
+        val openApi = root.read("docs/openapi.yaml")
+        val historySchema = openApi
+            .substringAfter("    StoreKitTransactionHistoryItem:")
+            .substringBefore("    AppleAppSiteAssociation:")
+        historySchema shouldContain "purchasedAt"
+        historySchema shouldContain "status"
+        historySchema shouldContain "nextCursor"
+        historySchema shouldNotContain "signedTransaction"
+        historySchema shouldNotContain "appAccountToken"
+        historySchema shouldNotContain "userId"
+        historySchema shouldNotContain "accountId"
+    }
+
     test("account profiles cascade on deletion and grants stay aligned") {
         val profileMigration = root.read(
             "src/main/resources/db/migration/V11__account_profiles.sql",