feat(hooks): use environment variable for JetBrains DotSettings file path

- Updated `format.py` to retrieve `DOTSETTINGS_FILE` via environment variable for better configurability.
- Added `env.DOTSETTINGS_FILE` entry in `.claude/settings.json` for default file path configuration.

Author: j-d-ha

.claude/hooks/format.py

@@ -54,7 +54,7 @@ def csharp(cwd: str, eddited_input: str) -> None:
             "cleanupcode",
             "--profile=Built-in: Reformat Code",
             f"--include={eddited_input}",
-            f"--settings={DOTSETTINGS_FILE_NAME}",
+            f"--settings={os.getenv('DOTSETTINGS_FILE')}",
         ],
         cwd=cwd,
         capture_output=True,

.claude/settings.json

@@ -12,5 +12,8 @@
         ]
       }
     ]
+  },
+  "env": {
+    "DOTSETTINGS_FILE": "LayeredCraft.DynamoMapper.sln.DotSettings"
   }
 }