dogfood: in-repo apps lack @types/node, so node: builtins show TS errors in VS Code

[vivek7405]

Problem

A .server.ts in an in-repo app (e.g. examples/blog/modules/posts/queries/get-post.server.ts, website/modules/blog/queries/get-post.server.ts) importing node:fs/promises shows in VS Code:

Cannot find name 'node:fs/promises'. ... Try npm i --save-dev @types/node and add 'node' to the types field in your tsconfig.

#403 fixed this for FRESHLY SCAFFOLDED apps (added @types/node + types: ['node'] to the generator), but the four EXISTING in-repo apps were never updated: examples/blog, website, docs, packages/ui/packages/website all lack @types/node and set no types field. @types/node is only hoisted at the monorepo root, which the CLI tsc resolves but VS Code's tsserver does not reliably pick up for a workspace app.

Fix

For each of the four apps, mirror the scaffold: add @types/node to devDependencies and types: ['node'] to the tsconfig compilerOptions. Regenerate the lockfile.

Acceptance criteria

• Each in-repo app's .server.ts resolves node: builtins (no TS error in VS Code or webjs typecheck).
• The four apps match the scaffold's @types/node setup.