Claude sub-agents, PRD, MCP improvements (#359)

1. Added Claude Code sub-agents
2. Added PRD tool to MCP Server
3. Added MCP Server UI to Dev Tools
4. Improved MCP Server Database Tool
5. Updated dependencies

package.json

@@ -1,6 +1,6 @@
 {
   "name": "next-supabase-saas-kit-turbo",
-  "version": "2.14.1",
+  "version": "2.15.0",
   "private": true,
   "sideEffects": false,
   "engines": {
@@ -40,10 +40,10 @@
   "packageManager": "pnpm@10.14.0",
   "devDependencies": {
     "@manypkg/cli": "^0.25.1",
-    "@turbo/gen": "^2.5.6",
+    "@turbo/gen": "^2.5.8",
     "cross-env": "^10.0.0",
     "prettier": "^3.6.2",
-    "turbo": "2.5.6",
+    "turbo": "2.5.8",
     "typescript": "^5.9.2"
   }
 }