chore(enhanced): unignore configCases node_modules

Replace path-specific exceptions with generic negations to track all test mock modules under packages/enhanced/test/configCases/**/node_modules/**.

Verified with git check-ignore that nested paths like next/dist are not ignored.

Author: ScriptedAlchemy

.gitignore

@@ -90,6 +90,7 @@ ssg
 __mocks__/
 
 # test mock modules
-!packages/enhanced/test/configCases/**/**/node_modules
-!packages/enhanced/test/configCases/sharing/share-with-aliases/node_modules/next/dist
-!packages/enhanced/test/configCases/sharing/share-with-aliases-provide-only/node_modules/next/dist
+# Keep ALL test configCases node_modules (and all nested files) tracked,
+# so we don't need per-path exceptions like next/dist.
+!packages/enhanced/test/configCases/**/node_modules/
+!packages/enhanced/test/configCases/**/node_modules/**