chore(07-01): isolate vitest glob from e2e, add tsconfig.e2e.json typecheck gate

- Add exclude: ['e2e/**', 'node_modules/**'] to vitest.config.ts test block
  to prevent Playwright specs from being picked up by Vitest jsdom runner
- Add tsconfig.e2e.json extending main tsconfig with node types for
  playwright.config.ts and e2e/**/* typecheck coverage
- Add @types/node to pwa devDependencies (required by playwright.config.ts)
- Update typecheck script to run both src and e2e tsc passes
- 191 unit tests still pass; no e2e import errors in vitest run

pnpm-lock.yaml

@@ -132,6 +132,9 @@ importers:
       '@testing-library/react':
         specifier: ^16.3.0
         version: 16.3.2(@testing-library/dom@10.4.1)(@types/react-dom@19.2.3(@types/react@19.2.16))(@types/react@19.2.16)(react-dom@19.2.7(react@19.2.7))(react@19.2.7)
+      '@types/node':
+        specifier: ^22.19.19
+        version: 22.19.19
       '@types/react':
         specifier: ^19.0.0
         version: 19.2.16