Rename the Equipment by Type report card to Machines by Type

Display label only, matching the Machines relabel; the endpoint id and
equipmenttype entity are unchanged.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

frontend/src/views/reports/ReportsIndex.vue

@@ -113,7 +113,7 @@
         <table>
           <thead>
             <tr>
-              <th>Equipment Type</th>
+              <th>Machine Type</th>
               <th>Description</th>
               <th>Count</th>
             </tr>

shopdb/core/api/reports.py

@@ -509,8 +509,8 @@ def list_reports():
     reports = [
         {
             'id': 'equipment-by-type',
-            'name': 'Equipment by Type',
-            'description': 'Equipment count grouped by equipment type',
+            'name': 'Machines by Type',
+            'description': 'Machine count grouped by machine type',
             'endpoint': '/api/reports/equipment-by-type',
             'category': 'inventory'
         },