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chore(deps): upgrade to TypeScript 7 (native compiler) (#47757)

Upgrades the monorepo to TypeScript 7.0.2, released 2026-07-08. `tsc` is
now the native Go compiler
([announcement](https://devblogs.microsoft.com/typescript/announcing-typescript-7-0/))
— full turbo typecheck drops from ~56s to ~19s locally.

TS 7.0 ships **without a programmatic API** (it lands in 7.1), so this
uses Microsoft's recommended side-by-side setup: the `typescript` name
resolves to `@typescript/typescript6` (the 6.0 API republished) for API
consumers — typescript-eslint and Next.js build typechecking — while
`@typescript/native` (the real `typescript@7.0.2`) owns the `tsc` bin
that typecheck scripts run. Exactly one version of each is in the
lockfile; nothing imports the native package as a library. When 7.1 +
tool support lands we can collapse back to a single `typescript` dep in
the catalog.

**Changed:**
- `pnpm-workspace.yaml`: catalog aliases for `typescript` /
`@typescript/native`
- 17 package.json files: `@typescript/native` added beside each
`typescript` dep so every package's `tsc` is the native binary
- `apps/studio/tsconfig.json`: exclude `dist/` (gitignored build output)
from typechecking

**Fixed** (real type errors TS 6 under-reported):
- `packages/ui-patterns` CodeBlock: `borderLeft: null` → `undefined`
(`CSSProperties` doesn't accept null)
- `apps/www` CodeBlock: removed a JSX `@ts-ignore` comment that tsgo
doesn't honor and fixed what it masked (untyped `.js` theme objects,
possibly-undefined highlighter children)

⚠️ **Merge timing:** the new packages are inside pnpm's 3-day
`minimumReleaseAge` window until ~July 11. Installs from the committed
lockfile are unaffected (resolution is skipped), but anything that
forces a re-resolution before then will fail — hold off merging until
the window passes.

Note for editors: the compat package has no `lib/tsserver.js`, so VS
Code's "Use Workspace Version" won't work — use the bundled TS or the
TypeScript Native Prev... (continued)

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