test(lint): pin the record:line_items findings at the gate's dotted path form

Claude-Session: https://claude.ai/code/session_01UtnxvdiN376GF3sgXwAw4d
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

packages/lint/src/validate-component-props.test.ts

@@ -972,17 +972,17 @@ describe('validateComponentProps — record:line_items is dispatched (#21142)',
     const findings = validateComponentProps(stackWith([fieldKeyed]));
     const unknown = unknownKeys(findings);
     expect(unknown.map((f) => f.path)).toEqual([
-      'pages[0].regions[0].components[0].properties.columns[0].field',
-      'pages[0].regions[0].components[0].properties.columns[1].field',
+      'pages[0].regions[0].components[0].properties.columns.0.field',
+      'pages[0].regions[0].components[0].properties.columns.1.field',
     ]);
     for (const f of unknown) {
       expect(f.where).toBe('page "probe_page" · record:line_items');
       expect(f.message).toContain('`name`');
     }
     // The column's identity is missing too: the value half names it.
     expect(invalid(findings).map((f) => f.path)).toEqual([
-      'pages[0].regions[0].components[0].properties.columns[0].name',
-      'pages[0].regions[0].components[0].properties.columns[1].name',
+      'pages[0].regions[0].components[0].properties.columns.0.name',
+      'pages[0].regions[0].components[0].properties.columns.1.name',
     ]);
   });