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

turbo.json

@@ -56,13 +56,13 @@
       "cache": false,
       "passThroughEnv": ["SSH_AUTH_SOCK", "GIT_SSH"]
     },
-    "format": {
-      "outputs": ["node_modules/.cache/.prettiercache"],
-      "outputLogs": "new-only"
+    "//#lint": {},
+    "//#lint:fix": {
+      "cache": false
     },
-    "lint": {
-      "dependsOn": ["^topo"],
-      "outputs": ["node_modules/.cache/.eslintcache"]
+    "//#format": {},
+    "//#format:fix": {
+      "cache": false
     },
     "typecheck": {
       "dependsOn": ["^topo"],