fix(config): include tests directory in TypeScript configuration

Resolves ESLint parsing errors for test files by adding tests directory
to TypeScript include path.

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

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

reactrebuild0825/tsconfig.json

@@ -47,6 +47,6 @@
       "@/*": ["./src/*"]
     }
   },
-  "include": ["src"],
+  "include": ["src", "tests"],
   "references": [{ "path": "./tsconfig.node.json" }]
 }