Restore consoleLog helper and remove test stub masking production fatal

The v2 rewrite of processLogEntries() calls consoleLog(...) at two
skip branches (no id, and no deposited/withdrawn). Commit 3ebc5e2 had
removed the project helper from includes/utilities.php, leaving a
production runtime fatal ("Call to undefined function consoleLog()")
the first time a non-vault entry flowed through fetchAndStoreLogPage
-> processLogEntries in real use.

The previous test appeared to pass only because it defined a local
no-op consoleLog stub via function_exists() guard — masking the defect
behind a test fixture that never reached either skip branch.

Fix:
  - Restore the original consoleLog() helper to
    includes/utilities.php (unchanged from the pre-3ebc5e2 codebase;
    spec lists it as unchanged).
  - Remove the local consoleLog stub from
    tests/process_log_entries_test.php so the test now exercises
    the real production code path.

includes/utilities.php

@@ -287,3 +287,16 @@ function fetchAndStoreLogPage($pdo, $user, $url) {
 
     return $responseData['_metadata']['links']['next'] ?? null;
 }
+
+/**
+ * Print a variable to the console for debugging purposes.
+ *
+ * @param mixed $data The data to print to the console.
+ *
+ * @return void
+ */
+function consoleLog( $data ) {
+    echo '<script>';
+    echo 'console.log(' . json_encode($data) . ')';
+    echo '</script>';
+}