feat: add permission-gated navigation and admin access

src/constants/permissions.ts

@@ -0,0 +1,17 @@
+export const PERMISSIONS = {
+  ROLE: {
+    CREATE: 'administration.roles.create',
+    READ: 'administration.roles.reads',
+    UPDATE: 'administration.roles.update',
+    DELETE: 'administration.roles.delete',
+  },
+  USER: {
+    CREATE: 'administration.users.create',
+    READ: 'administration.users.read',
+    UPDATE: 'administration.users.update',
+    DELETE: 'administration.users.delete',
+  },
+  LOG: {
+    VIEW: 'log.view',
+  },
+} as const;