-

Groups is fully removed:

No homepage navigation, Account feature, tier setting, API, or client 
code.
Legacy group tables, entitlements, messages, voice files, and config are 
purged automatically.
New cache-busted client: cyberchat-app.js?v=20260609.3.
Browser and SQLite migration tests passed with no console errors.

api/messages.php

@@ -30,10 +30,6 @@ function messagePayload(array $row): array {
     ];
 }
 
-function publicMessageCondition(PDO $db): string {
-    return isset(tableColumns($db, 'messages')['group_id']) ? ' AND group_id IS NULL' : '';
-}
-
 function sendTextMessage(): never {
     $user = authRequired();
     $message = trim((string)($_POST['message'] ?? ''));
@@ -155,17 +151,16 @@ function pollMessages(): never {
     $since = max(0, (int)($_GET['since'] ?? 0));
     $limit = max(1, min(250, (int)getConfigVal('chat.messages_per_page', 100)));
     $db = getDB();
-    $publicOnly = publicMessageCondition($db);
 
     if ($since === 0) {
         $stmt = $db->prepare("SELECT * FROM messages
-            WHERE day_key=?$publicOnly ORDER BY id DESC LIMIT ?");
+            WHERE day_key=? ORDER BY id DESC LIMIT ?");
         $stmt->execute([dayKey(), $limit]);
         $rows = array_reverse($stmt->fetchAll());
         $hasMore = false;
     } else {
         $stmt = $db->prepare("SELECT * FROM messages
-            WHERE day_key=?$publicOnly AND id>? ORDER BY id LIMIT ?");
+            WHERE day_key=? AND id>? ORDER BY id LIMIT ?");
         $stmt->execute([dayKey(), $since, $limit + 1]);
         $rows = $stmt->fetchAll();
         $hasMore = count($rows) > $limit;