feat: code quality audit + autoresearch integration + infra hardening (#150)

src/infrastructure/hands/tools.py

@@ -11,15 +11,17 @@ the tool registry.
 import logging
 from typing import Any
 
-from infrastructure.hands.shell import shell_hand
 from infrastructure.hands.git import git_hand
+from infrastructure.hands.shell import shell_hand
 
 try:
     from mcp.schemas.base import create_tool_schema
 except ImportError:
+
     def create_tool_schema(**kwargs):
         return kwargs
 
+
 logger = logging.getLogger(__name__)
 
 # ── Tool schemas ─────────────────────────────────────────────────────────────
@@ -83,6 +85,7 @@ PERSONA_LOCAL_HAND_MAP: dict[str, list[str]] = {
 
 # ── Handlers ─────────────────────────────────────────────────────────────────
 
+
 async def _handle_shell(**kwargs: Any) -> str:
     """Handler for the shell MCP tool."""
     command = kwargs.get("command", "")