fix: remove ui5-guidelines test references from root

- Remove test scripts from root package.json (test infrastructure moved to separate branch)
- Remove UI5 Guidelines test step from CI workflow
- Keep only general repository checks (prettier, licenses, knip)
- UI5 plugin tests now in test/ui5-skills-testing branch

Author: d3xter666

.github/workflows/ci.yml

@@ -32,6 +32,3 @@ jobs:
 
     - name: Perform dependency check
       run: npm run knip
-
-    - name: Test UI5 Guidelines Plugin
-      run: npm run test:ui5-guidelines

package.json

@@ -32,15 +32,7 @@
     "prettier": "prettier **/.mcp.json **/plugin.json",
     "prettier:write": "npm run prettier -- --write",
     "prettier:check": "npm run prettier -- --check",
-    "test": "npm run prettier:check && npm run knip && npm run check-licenses && npm run test:ui5-guidelines",
-    "test:ui5-guidelines": "node plugins/ui5-guidelines/test/index.js",
-    "test:ui5-guidelines:structure": "node plugins/ui5-guidelines/test/index.js --suite structure",
-    "test:ui5-guidelines:triggering": "node plugins/ui5-guidelines/test/index.js --suite triggering",
-    "test:ui5-guidelines:performance": "node plugins/ui5-guidelines/test/index.js --suite performance",
-    "metrics": "node plugins/ui5-guidelines/scripts/analyze.js",
-    "metrics:week": "node plugins/ui5-guidelines/scripts/analyze.js --days 7",
-    "metrics:month": "node plugins/ui5-guidelines/scripts/analyze.js --days 30",
-    "metrics:optimize": "node plugins/ui5-guidelines/scripts/analyze.js --optimize"
+    "test": "npm run prettier:check && npm run knip && npm run check-licenses"
   },
   "devDependencies": {
     "@commitlint/cli": "^20.5.3",