Add PostToolUse hook for automatic code formatting (MultiQC#3461)

Co-authored-by: Claude <noreply@anthropic.com>

Author: ewels

.claude/settings.json

@@ -0,0 +1,15 @@
+{
+  "hooks": {
+    "PostToolUse": [
+      {
+        "matcher": "Write|Edit",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "pre-commit run --files \"$CLAUDE_FILE_PATH\" || true"
+          }
+        ]
+      }
+    ]
+  }
+}