fix: Fix lint errors

- Remove unused catch parameter in ToolsTab.tsx
- Replace 'as any' with @ts-expect-error in test for invalid schema

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

client/src/components/ToolsTab.tsx

@@ -104,7 +104,7 @@ const ToolsTab = ({
           message: "Parsed JSON does not match structured content",
         };
       }
-    } catch (e) {
+    } catch {
       return {
         isCompatible: false,
         message: "Unstructured content is not valid JSON",