[JENKINS-70788] Limit frontend linters to Jenkins source directories (#27008)

Limit frontend linters to Jenkins source directories

Co-authored-by: Alex Tumanov <6143578+oleksii-tumanov@users.noreply.github.com>

.prettierignore

@@ -1,3 +1,18 @@
+# Only scan Jenkins source areas, not arbitrary top-level work directories
+/*/
+!/.github/
+!/.idea/
+!/.mvn/
+!/bom/
+!/cli/
+!/core/
+!/coverage/
+!/docs/
+!/src/
+!/test/
+!/war/
+!/websocket/
+
 # generated / build files
 .pnp.cjs
 .pnp.loader.mjs

eslint.config.cjs

@@ -6,6 +6,21 @@ module.exports = [
   // Global ignores
   {
     ignores: [
+      // Only scan Jenkins source areas, not arbitrary top-level work directories
+      "*/**",
+      "!.github/**",
+      "!.idea/**",
+      "!.mvn/**",
+      "!bom/**",
+      "!cli/**",
+      "!core/**",
+      "!coverage/**",
+      "!docs/**",
+      "!src/**",
+      "!test/**",
+      "!war/**",
+      "!websocket/**",
+
       "**/target/",
       "**/work/",