Next.js Supabase V3 (#463)

Version 3 of the kit:
- Radix UI replaced with Base UI (using the Shadcn UI patterns)
- next-intl replaces react-i18next
- enhanceAction deprecated; usage moved to next-safe-action
- main layout now wrapped with [locale] path segment
- Teams only mode
- Layout updates
- Zod v4
- Next.js 16.2
- Typescript 6
- All other dependencies updated
- Removed deprecated Edge CSRF
- Dynamic Github Action runner

.github/workflows/workflow.yml

@@ -1,14 +1,14 @@
 name: Workflow
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main]
 jobs:
   typescript:
     name: ʦ TypeScript
     timeout-minutes: 10
-    runs-on: ubuntu-latest
+    runs-on: ${{ vars.RUNNER || 'ubuntu-latest' }}
     env:
       SUPABASE_SERVICE_ROLE_KEY: ${{ secrets.SUPABASE_SERVICE_ROLE_KEY }}
       SUPABASE_DB_WEBHOOK_SECRET: ${{ secrets.SUPABASE_DB_WEBHOOK_SECRET }}
@@ -48,7 +48,7 @@ jobs:
   test:
     name: ⚫️ Test
     timeout-minutes: 20
-    runs-on: ubuntu-latest
+    runs-on: ${{ vars.RUNNER || 'ubuntu-latest' }}
     if: ${{ vars.ENABLE_E2E_JOB == 'true' }}
     env:
       SUPABASE_SERVICE_ROLE_KEY: ${{ secrets.SUPABASE_SERVICE_ROLE_KEY }}
@@ -120,4 +120,4 @@ jobs:
         with:
           name: playwright-report
           path: apps/e2e/playwright-report/
-          retention-days: 7
+          retention-days: 7