Validate Pairs Tool (#30)

* Add vitest for testing

* Add test for checking color pair

* Add error response

* Update missed values

* Create a barrel file to simplify imports

* Update ci

Author: Jeremy-Walton

.github/workflows/ci.yml

@@ -29,6 +29,9 @@ jobs:
       - name: Build
         run: npm run build
 
+      - name: Install playwright
+        run: npx playwright install
+
       - name: Run tests
         run: npm test
 

.gitignore

@@ -39,4 +39,7 @@ logs/
 .cursor/rules/byterover-rules.mdc
 .kiro/steering/byterover-rules.md
 .qoder/rules/byterover-rules.md
-.augment/rules/byterover-rules.md
+.augment/rules/byterover-rules.md
+
+# Vitest
+spec/**/__screenshots__/*