fix(repo,ur,cu,mu,scheduler-utils,connect): remove engine to force us…

…e of npm

This apparently causes error when using yarn to install the package from npm
which was not the desired effect. For now, i've added `only-allow` to the root
package. Eventually, we'll need another way to enforce use of npm for development

connect/package.json

@@ -60,7 +60,6 @@
     "typescript": "^5.5.4"
   },
   "engines": {
-    "node": ">=18",
-    "yarn": "please-use-npm"
+    "node": ">=18"
   }
 }

package.json

@@ -4,6 +4,7 @@
   "workspaces": [],
   "scripts": {
     "fmt": "standard --fix",
+    "preinstall": "npx only-allow npm",
     "prepare": "husky",
     "staged": "lint-staged"
   },
@@ -13,12 +14,10 @@
     "husky": "^9.0.11",
     "lint-staged": "^15.2.5",
     "markdown-toc-gen": "^1.0.1",
+    "only-allow": "^1.2.1",
     "sort-package-json": "^2.10.0",
     "standard": "^17.1.0"
   },
-  "engines": {
-    "yarn": "please-use-npm"
-  },
   "standard": {
     "ignore": [
       "dist",

scheduler-utils/package.json

@@ -40,7 +40,6 @@
     "typescript": "^5.4.5"
   },
   "engines": {
-    "node": ">=18",
-    "yarn": "please-use-npm"
+    "node": ">=18"
   }
 }

servers/cu/package.json

@@ -45,7 +45,6 @@
     "nodemon": "^3.1.4"
   },
   "engines": {
-    "node": ">=18",
-    "yarn": "please-use-npm"
+    "node": ">=18"
   }
 }

servers/mu/package.json

@@ -44,7 +44,6 @@
     "nodemon": "^3.0.1"
   },
   "engines": {
-    "node": "22",
-    "yarn": "please-use-npm"
+    "node": "22"
   }
 }

servers/ur/package.json

@@ -24,7 +24,6 @@
     "nodemon": "^3.1.4"
   },
   "engines": {
-    "node": ">=18",
-    "yarn": "please-use-npm"
+    "node": ">=18"
   }
 }