Clean up temporary .pyc files on remote nodes after execution

Remove the uploaded .pyc file after run_python_container_command()
completes to prevent accumulation across multiple deployment runs.

Closes #51

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: szachovy

CHANGELOG.md

@@ -21,6 +21,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Completed [ARCHITECTURE.md](./docs/ARCHITECTURE.md) (#93)
 * Migrated CI from self-hosted to GitHub-hosted runners with Docker-in-Docker test infrastructure. (#94)
 * Test workflow always builds service images locally for reproducibility. (#97)
+* Clean up temporary `.pyc` files on remote nodes after execution. (#51)
 
 ### Fixed
 

src/remote.py

@@ -130,10 +130,12 @@ def run_python_container_command(self, command: str) -> dict:
             marshal.dump(code_object, pyc_file)
             self.upload_file(content=pyc_file.getvalue(), remote_file_path=f'/opt/{nonce}.pyc')
         _, stdout, stderr = self.ssh_client.exec_command(f"python3 /opt/{nonce}.pyc")
-        return {
+        result = {
             "output": stdout.read().decode(),
             "error": stderr.read().decode()
         }
+        self.ssh_client.exec_command(f"rm -f /opt/{nonce}.pyc")
+        return result
 
     def upload_directory(self, local_directory_path: str, remote_directory_path: str) -> None:
         stack = [(local_directory_path, remote_directory_path)]