♻️ Refactor project structure by removing scattered Python test scripts

subprocess_tests/subprocess_test.py

@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+
+import subprocess
+
+if __name__ == "__main__":
+    result = subprocess.run(
+        ['curl', 'https://hatter.ink/ip.action'],
+        capture_output=True,
+        text=True,
+        timeout=30,
+    )
+    print('return code:', result.returncode)
+    print(result.stdout)