fix(tests): X-Test-Sub → X-Auth-Token во всех тест-скриптах, cleanup для test59.sh

scripts/bench_heavy.py

@@ -1083,7 +1083,7 @@ print("=== Удаляем старые bench-функции ===")
 for name, _, _ in functions:
     result = subprocess.run(
         ["curl", "-s", "-X", "DELETE", f"{BASE}/functions/{name}",
-         "-H", f"X-Test-Sub: {SUB}"],
+         "-H", f"X-Auth-Token: {SUB}"],
         capture_output=True, text=True
     )
     print(f"  DELETE {name}: {result.stdout.strip()[:80]}")
@@ -1094,7 +1094,7 @@ for name, lang, code in functions:
     size_kb = len(code) / 1024
     result = subprocess.run(
         ["curl", "-s", "-X", "POST", f"{BASE}/functions",
-         "-H", f"X-Test-Sub: {SUB}", "-H", "Content-Type: application/json",
+         "-H", f"X-Auth-Token: {SUB}", "-H", "Content-Type: application/json",
          "-d", payload],
         capture_output=True, text=True
     )