fix(kyberforge): update new-skill.bats to assert tests/ in scaffold

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/kyberforge/skills/skill-write/tests/new-skill.bats

@@ -39,11 +39,12 @@ teardown() {
     assert [ -f "$DEST/my-tool/README.md" ]
 }
 
-@test "scaffold contains scripts/, references/, assets/ directories" {
+@test "scaffold contains scripts/, references/, assets/, tests/ directories" {
     bash "$SCRIPT" my-tool "$DEST"
     assert [ -d "$DEST/my-tool/scripts" ]
     assert [ -d "$DEST/my-tool/references" ]
     assert [ -d "$DEST/my-tool/assets" ]
+    assert [ -d "$DEST/my-tool/tests" ]
 }
 
 @test "substitutes skill name in SKILL.md" {