Style fixes from phpcs

tests/process_log_entries_test.php

@@ -7,8 +7,16 @@
  * resulting rows match the expected (id, user, timestamp, description,
  * amount) tuples derived from the fixture.
  *
+ * PHP version 8.1+
+ *
  * Run: php tests/process_log_entries_test.php
  * Exit code 0 = pass.
+ *
+ * @category Test
+ * @package  TornVaultTracker
+ * @author   Keith Solomon <ksolo@gmail.com>
+ * @license  Unlicense https://unlicense.org/
+ * @link     https://github.com/ksolo/Torn-Vault-Tracker
  */
 
 declare(strict_types=1);
@@ -16,20 +24,38 @@ declare(strict_types=1);
 // Make USER_KEYS available without including config.php (it would force a
 // real DB connection).
 if (!defined('USER_KEYS')) {
-    define('USER_KEYS', [
+    define(
+        'USER_KEYS', [
         'zarathos' => 'test-key-not-used',
         'symos'    => 'test-key-not-used',
-    ]);
+        ]
+    );
 }
 
 require_once __DIR__ . '/../includes/exceptions.php';
 require_once __DIR__ . '/../includes/utilities.php';
 
+/**
+ * Print a failure message to STDERR and exit with status 1.
+ *
+ * @param string $message Human-readable failure description.
+ *
+ * @return never
+ */
 function fail(string $message): void {
     fwrite(STDERR, "FAIL: $message\n");
     exit(1);
 }
 
+/**
+ * Lightweight assertion helper that mirrors PHPUnit's assertSame().
+ *
+ * @param mixed  $expected The expected value.
+ * @param mixed  $actual   The actual value.
+ * @param string $label    Human-readable label for failure messages.
+ *
+ * @return void
+ */
 function assertSame($expected, $actual, string $label): void {
     if ($expected !== $actual) {
         $exp = var_export($expected, true);