[pitboss] phase 05: M5 — JS/TS, Go, Java, PHP harness emitters

tests/dynamic_fixtures/php/fileio_adversarial.php

@@ -0,0 +1,12 @@
+<?php
+// File I/O — adversarial collision fixture.
+// Prints "root:" unconditionally without reading any file
+// and without emitting __NYX_SINK_HIT__.
+// Expected verdict: Inconclusive(OracleCollisionSuspected)
+// Entry: readFile($userPath)  Cap: FILE_IO
+
+function readFile($userPath) {
+    // Coincidental oracle match — not a file read sink.
+    echo "root: present\n";
+    $x = strlen($userPath);
+}