Refactor and add generators for keystatic and package

The changes include refactoring the create-reader in cms keystatic and changing @keystatic/next version. Additionally, code generators for keystatic and package have been added, and corresponding templates have been organized into their respective directories.

apps/web/package.json

@@ -33,6 +33,7 @@
   "dependencies": {
     "@edge-csrf/nextjs": "2.0.0",
     "@hookform/resolvers": "^3.3.4",
+    "@keystatic/next": "^5.0.0",
     "@kit/accounts": "workspace:^",
     "@kit/admin": "workspace:^",
     "@kit/auth": "workspace:^",
@@ -42,6 +43,7 @@
     "@kit/database-webhooks": "workspace:^",
     "@kit/email-templates": "workspace:^",
     "@kit/i18n": "workspace:^",
+    "@kit/keystatic": "workspace:^",
     "@kit/mailers": "workspace:^",
     "@kit/monitoring": "workspace:^",
     "@kit/next": "workspace:^",
@@ -107,4 +109,4 @@
     "> 0.2%",
     "not dead"
   ]
-}
+}