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

apps/pwa/tsconfig.e2e.json

@@ -0,0 +1,9 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "types": ["node"],
+    "lib": ["ES2023"]
+  },
+  "include": ["playwright.config.ts", "e2e/**/*"],
+  "exclude": ["node_modules"]
+}