chore: upgrade typescript from v6 to v7 (tsgo native port)

TypeScript 7 is a native Go port (tsgo) that delivers 8-12x faster
builds and a rebuilt LSP. No tsconfig changes needed — the codebase
was already compatible with all TS7 defaults and deprecations.

pnpm-workspace.yaml

@@ -177,7 +177,7 @@ catalog:
   tsdav: ^2.3.0
   tsx: 4.20.4
   turbo: ^2.10.2
-  typescript: ^6.0.3
+  typescript: ^7.0.2
   vite: ^8.1.2
   undici: 7.28.0
   use-deep-compare-effect: ^1.8.1