chore: apply ruff auto-fixes and remove dead AST scripts

scripts/mma_exec.py

@@ -211,19 +211,19 @@ def execute_agent(role: str, prompt: str, docs: list[str], debug: bool = False,
   env = os.environ.copy()
   env["GEMINI_CLI_HOOK_CONTEXT"] = "mma_headless"
   if debug:
-   print(f"--- MMA DEBUG ---")
+   print("--- MMA DEBUG ---")
    print(f"Executing Command: {cmd}")
-   print(f"Relevant Environment Variables:")
+   print("Relevant Environment Variables:")
    for key, value in env.items():
     if key.startswith("GEMINI_CLI_"):
      print(f"  {key}={value}")
   process = subprocess.run(cmd, input=command_text, capture_output=True, text=True, encoding='utf-8', env=env)
   if debug:
-   print(f"Subprocess Result:")
+   print("Subprocess Result:")
    print(f"  Return Code: {process.returncode}")
    print(f"  Stdout: {process.stdout[:1000]}...")
    print(f"  Stderr: {process.stderr}")
-   print(f"--- END DEBUG ---")
+   print("--- END DEBUG ---")
   result = process.stdout
   if not process.stdout and process.stderr:
    result = f"Error: {process.stderr}"