fix: Explicitly include bin/code-review-guardian.sh in composer.json files field

- Add 'files' field to composer.json to ensure bin/code-review-guardian.sh
  is included in the Composer package distribution
- This ensures the script is available for installation by the Plugin

Author: HecFranco

composer.json

@@ -55,6 +55,11 @@
             "NowoTech\\CodeReviewGuardian\\Tests\\": "tests/"
         }
     },
+    "files": [
+        "bin/code-review-guardian.sh",
+        "config",
+        "docs/GGA.md"
+    ],
     "extra": {
         "class": "NowoTech\\CodeReviewGuardian\\Plugin",
         "branch-alias": {