fix: [verified] expose all documentation in reachable sidebars

scripts/strategy-navigation.test.mjs

@@ -19,6 +19,7 @@ test('Strategy has Target, Roadmap, a linked Skills Adoption category and Autono
       {type:'doc', id:'skills-adoption', label:'Adoption'},
       {type:'doc', id:'measurement', label:'Measurement'},
       {type:'doc', id:'skills-maintenance', label:'Maintenance'},
+      {type:'category', label:'Reference', collapsed:true, items:[{type:'doc', id:'reference/measurement-contracts', label:'Measurement Contracts'}]},
     ],
   }, 'stage-02-autonomous-agent']);
   assert.match(read('docs/strategy/target-operating-model.mdx'), /^sidebar_label: Target$/m);