prepare("SELECT sender, message FROM chat_log WHERE session_id = ? ORDER BY created_at ASC");
$stmt->execute([$_SESSION['session_id']]);
$chat_history = $stmt->fetchAll();
} catch (PDOException $e) {
// Not critical if history fails to load, so we just log it.
error_log("Could not load chat history: " . $e->getMessage());
}
}
?>
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