fix(seed): move pilot registrations to July and August

services/api/scripts/seed-local.mjs

@@ -235,22 +235,18 @@ function minutesAfter(minutes) {
   return new Date(NOW.getTime() + minutes * 60 * 1000);
 }
 
-// IAM-026/BUA-024: keep the synthetic customer-growth story bounded to the
-// June-August 2026 pilot window. July carries the majority of registrations,
-// while only four customer identities land after August 14.
+// IAM-026/BUA-024: keep the synthetic customer-growth story bounded to July
+// and the first thirteen days of August 2026. August carries roughly three
+// times July's registrations, matching the requested pilot-dashboard shape.
 function platformAnalyticsRegistrationDate(index) {
   let monthIndex;
   let day;
-  if (index < 8) {
-    monthIndex = 5;
-    day = 2 + index * 4;
-  } else if (index < 47) {
+  if (index < 16) {
     monthIndex = 6;
-    day = 1 + Math.floor(((index - 8) * 31) / 39);
+    day = 1 + Math.floor((index * 31) / 16);
   } else {
     monthIndex = 7;
-    const augustIndex = index - 47;
-    day = augustIndex < 12 ? augustIndex + 1 : 15 + (augustIndex - 12) * 2;
+    day = 1 + Math.floor(((index - 16) * 13) / 47);
   }
 
   return new Date(Date.UTC(2026, monthIndex, day, 8 + (index % 9), (index * 11) % 60));

services/api/test/seed-local.test.mjs

@@ -217,24 +217,25 @@ test('[IAM-026][BUA-024] platform overview seed uses 63 valid, unique supplied c
   assert.equal(new Set(analytics.users.map((user) => user.email)).size, 63);
 });
 
-test('[IAM-026][BUA-024] platform overview registrations start in June, peak in July, and leave only four customers after August 14', () => {
+test('[IAM-026][BUA-024] platform overview registrations use a smaller July cohort and a larger pre-August-14 cohort', () => {
   const { users } = buildPlatformAnalyticsRows();
   const registrationsByMonth = Object.fromEntries(
-    ['2026-06', '2026-07', '2026-08'].map((month) => [
+    ['2026-07', '2026-08'].map((month) => [
       month,
       users.filter((user) => user.createdAt.toISOString().startsWith(month)).length,
     ]),
   );
 
   assert.deepEqual(registrationsByMonth, {
-    '2026-06': 8,
-    '2026-07': 39,
-    '2026-08': 16,
+    '2026-07': 16,
+    '2026-08': 47,
   });
-  assert.ok(users.every((user) => user.createdAt >= new Date('2026-06-01T00:00:00.000Z')));
-  assert.equal(
-    users.filter((user) => user.createdAt >= new Date('2026-08-15T00:00:00.000Z')).length,
-    4,
+  assert.ok(
+    users.every(
+      (user) =>
+        user.createdAt >= new Date('2026-07-01T00:00:00.000Z') &&
+        user.createdAt < new Date('2026-08-14T00:00:00.000Z'),
+    ),
   );
 });