Fix Story 1.2 scaffold docs (.gitignore)

.gitignore

@@ -3,7 +3,6 @@ _bmad/
 .claude/
 .idea/
 gitea_token
-package-lock.json
 node_modules/
 bin/
 obj/
@@ -18,4 +17,3 @@ coverage/
 *.DS_Store
 Thumbs.db
 Campaign_Tracker.Server/Campaign_Tracker.Server.csproj
-