fix: resolve all TypeScript linting errors

- Fix searchTemplatesByMetadata calls to pass limit/offset as separate params
- Fix syntax errors with brace placement in test files
- Add type annotations for implicit any types
- All tests passing and TypeScript compilation successful

tests/unit/templates/metadata-generator.test.ts

@@ -463,7 +463,7 @@ describe('MetadataGenerator', () => {
       const userMessage = request.body.messages[1].content;
       
       // Should limit to top 10 groups
-      const summaryLine = userMessage.split('\n').find(line => 
+      const summaryLine = userMessage.split('\n').find((line: string) => 
         line.includes('Nodes Used (50)')
       );