Update runtime data: analytics events, episode plays, study user state

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

data/study-users.json

@@ -10,14 +10,20 @@
       "enrolledStudySlugs": [],
       "avatarUrl": "",
       "createdAt": null,
-      "updatedAt": null,
+      "updatedAt": "2026-08-10T12:39:25.413Z",
       "lastLoginAt": "2026-05-21T15:41:16.259Z",
+      "reengagementSentAt": {},
       "pendingEmailChange": null,
       "twoFaMethod": null,
       "totpSecret": null,
       "totpVerified": false,
       "totpEnabledAt": null,
-      "totpRecoveryCodes": []
+      "totpRecoveryCodes": [],
+      "birthdayMonth": 7,
+      "birthdayDay": 4,
+      "birthdayAlternateMonth": null,
+      "birthdayAlternateDay": null,
+      "birthdayEmailSentYear": null
     },
     {
       "id": "3307bdd7-a770-4fad-a28e-cf2d0c2a6e34",
@@ -33,6 +39,7 @@
       "createdAt": null,
       "updatedAt": "2026-06-08T20:46:30.804Z",
       "lastLoginAt": "2026-06-08T20:46:30.804Z",
+      "reengagementSentAt": {},
       "pendingEmailChange": null,
       "twoFaMethod": null,
       "totpSecret": null,
@@ -53,6 +60,7 @@
       "createdAt": null,
       "updatedAt": null,
       "lastLoginAt": "2026-06-02T17:33:13.669Z",
+      "reengagementSentAt": {},
       "pendingEmailChange": null,
       "twoFaMethod": null,
       "totpSecret": null,
@@ -61,5 +69,5 @@
       "totpRecoveryCodes": []
     }
   ],
-  "updatedAt": "2026-06-08T20:46:30.806Z"
+  "updatedAt": "2026-08-10T12:39:25.413Z"
 }