feat(lint): enforce definePage layout meta on pages-v2

Adds a custom ESLint rule (local-rules/require-v2-layout-meta) that
fails any src/pages-v2/**.vue page missing
definePage({ meta: { layout: 'OrganizerLayoutV2' } }) (or PortalLayoutV2
under pages-v2/portal), preventing a silent wrong-shell fallback to the
default layout (RFC-WS-GUI-REDESIGN AD-G2). Wires eslint-plugin-local-rules
+ a pages-v2 override. The RuleTester spec is called at top level (ESLint
RuleTester self-manages describe/it under Vitest) and vitest.config.ts
gains the eslint-rules test glob so the spec is discovered.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

apps/app/eslint-rules/__tests__/require-v2-layout-meta.spec.ts

@@ -0,0 +1,43 @@
+import { createRequire } from 'node:module'
+import { RuleTester } from 'eslint'
+
+// Project is ESLint 8.57 — RuleTester uses the legacy `parser` +
+// `parserOptions` shape (NOT ESLint-9 `languageOptions`). createRequire
+// gives us a CJS `require` inside this ESM test for the .cjs rule + the
+// parser path.
+//
+// RuleTester.run internally calls describe/it itself — do NOT wrap it in
+// an `it()` block; call it directly inside (or at the top level of) the
+// describe so Vitest does not see a describe-inside-it violation.
+const require = createRequire(import.meta.url)
+const rule = require('../require-v2-layout-meta.cjs')
+
+const ruleTester = new RuleTester({
+  parser: require.resolve('vue-eslint-parser'),
+  parserOptions: { ecmaVersion: 2022, sourceType: 'module' },
+})
+
+ruleTester.run('require-v2-layout-meta', rule, {
+  valid: [
+    {
+      filename: 'src/pages-v2/dashboard.vue',
+      code: '<script setup lang="ts">definePage({ meta: { layout: \'OrganizerLayoutV2\' } })</script><template><div/></template>',
+    },
+    {
+      filename: 'src/pages/dashboard.vue',
+      code: '<script setup lang="ts">const x = 1</script><template><div/></template>',
+    },
+  ],
+  invalid: [
+    {
+      filename: 'src/pages-v2/dashboard.vue',
+      code: '<script setup lang="ts">const x = 1</script><template><div/></template>',
+      errors: [{ messageId: 'missing' }],
+    },
+    {
+      filename: 'src/pages-v2/events/index.vue',
+      code: '<script setup lang="ts">definePage({ meta: { layout: \'default\' } })</script><template><div/></template>',
+      errors: [{ messageId: 'wrongLayout' }],
+    },
+  ],
+})