chore: align Node 26.7.0 toolchain

README.md

@@ -10,7 +10,7 @@ Features a premium animated homepage (typewriter hero, floating orbs, scroll cou
 
 | Component       | Version        | Notes                                    |
 | --------------- | -------------- | ---------------------------------------- |
-| Node.js         | >= 22          | Required by Next.js 16                   |
+| Node.js         | 26.7.0         | Current release pinned in `.nvmrc`       |
 | pnpm            | >= 10.33.4     | Package manager (npm/yarn not supported) |
 | MySQL / MariaDB | 8.0+ / 10.6+   | Shared with the emulator                 |
 | DragonflyDB     | 1.x+           | Optional — caching, rate limiting, SSE (Redis-protocol compatible) |