feat(folio-web): web sample app + CDP spec tests (#36)

* fix(runner): allow nil connection for web platform

* fix(testrun): skip SDK handshake for web platform

* feat(folio-web): add React/Vite web sample app

* feat(folio-web): add sanderling spec

* fix(chrome): use InsertText for multi-char text input

* feat(hierarchy): add Screen field populated from sanderling-screen attr

* fix(chrome): auto-detect viewport from CSS vars, fix InputText accumulation, expose route as screen

* fix(runner): fall back to hierarchy root screen when snapshot screen is empty

* fix(folio-web): broaden loggedIn extractor to all authenticated pages

.gitignore

@@ -48,6 +48,11 @@ inspect-ui/node_modules/
 inspect-ui/dist/
 inspect-ui/.vite/
 
+# folio-web frontend
+examples/folio-web/node_modules/
+examples/folio-web/dist/
+examples/folio-web/.vite/
+
 # d2 diagrams render into build/site/_assets/diagrams; keep sources only
 /docs/_diagrams/*.svg
 /docs/_diagrams/*.png
@@ -57,4 +62,6 @@ inspect-ui/.vite/
 .claude/*
 
 # Personal research notes
-/research/
+/research/
+
+internal/inspect/dist/*