Merge worktree-llm-web-config (939, with latest master) into worktree/onboarding-deepseek-config

# Conflicts:
#	apps/web/tests/scaffold.ts

tsconfig.host.json

@@ -10,6 +10,7 @@
   "include": [
     "apps/web/tests/scaffold.ts",
     "apps/web/tests/support.ts",
+    "apps/web/tests/scaffold-hermetic.e2e.ts",
     "apps/web/tests/live-interactions.e2e.ts",
     "apps/web/tests/question-composer.e2e.ts",
     "apps/web/tests/steering.e2e.ts",