add: require dev phpcs packages used locally, scripts.

Author: hsehszroc

composer.json

@@ -28,6 +28,29 @@
   },
   "require-dev": {
     "phpunit/phpunit": "^11.5",
-    "phpstan/phpstan": "^2.1"
+    "phpstan/phpstan": "^2.1",
+    "squizlabs/php_codesniffer": "^3.11",
+    "phpcompatibility/php-compatibility": "^9.3",
+    "phpcompatibility/phpcompatibility-wp": "^2.1",
+    "wp-coding-standards/wpcs": "^3.1"
+  },
+  "config": {
+    "allow-plugins": {
+      "dealerdirect/phpcodesniffer-composer-installer": true
+    }
+  },
+  "scripts": {
+    "test:unit": "vendor/bin/phpunit",
+    "analyze": "vendor/bin/phpstan",
+    "sniff": "vendor/bin/phpcs",
+    "test": [
+      "@analyze",
+      "@test:unit",
+      "@sniff"
+    ],
+    "test:dev": [
+      "phpstan",
+      "phpunit"
+    ]
   }
 }