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

scripts/apply_type_hints.py

@@ -9,7 +9,7 @@ import ast
 import re
 import sys
 import os
-from typing import Any, Callable
+from typing import Any
 
 BASE: str = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
 stats: dict[str, Any] = {"auto_none": 0, "manual_sig": 0, "vars": 0, "errors": []}
@@ -332,7 +332,7 @@ if __name__ == "__main__":
   print(f"  {f}: {r}")
   if "Error" in r:
    all_ok = False
- print(f"\n=== Summary ===")
+ print("\n=== Summary ===")
  print(f"  Auto -> None: {stats['auto_none']}")
  print(f"  Manual sigs:  {stats['manual_sig']}")
  print(f"  Variables:    {stats['vars']}")

scripts/check_hints.py

@@ -1,5 +1,3 @@
-import re
-import sys
 
 files = ['ai_client.py', 'aggregate.py', 'mcp_client.py', 'shell_runner.py']
 for file_path in files:

scripts/check_hints_v2.py

@@ -1,5 +1,4 @@
 import re
-import sys
 
 files = ['ai_client.py', 'aggregate.py', 'mcp_client.py', 'shell_runner.py']
 for file_path in files:

scripts/cli_tool_bridge.py

@@ -97,7 +97,7 @@ def main():
      }))
    return
   if hook_context == "mma_headless":
-   logging.debug(f"GEMINI_CLI_HOOK_CONTEXT is 'mma_headless'. Allowing execution for sub-agent.")
+   logging.debug("GEMINI_CLI_HOOK_CONTEXT is 'mma_headless'. Allowing execution for sub-agent.")
    print(json.dumps({
       "decision": "allow",
       "reason": "Sub-agent headless mode (MMA)."

scripts/inject_tools.py

@@ -1,4 +1,3 @@
-import os
 import re
 
 with open('mcp_client.py', 'r', encoding='utf-8') as f:

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}"

scripts/scan_all_hints.py

@@ -1,5 +1,6 @@
 """Scan all .py files for missing type hints. Writes scan_report.txt."""
-import ast, os
+import ast
+import os
 
 SKIP: set[str] = {'.git', '__pycache__', '.venv', 'venv', 'node_modules', '.claude', '.gemini'}
 BASE: str = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))