fix(e2e): improve test stability and developer experience (#337)

* fix(e2e): add masks for dynamic content and increase timeouts for slow servers

- Add HOST_MASKS for Tool Input/Result panels with dynamic timestamps
- Add say-server to SLOW_SERVERS (10s) for TTS model download
- Add say-server to EXTRA_WAIT_MS (30s) in generate-grid-screenshots

* feat: add update-lock:docker script to regenerate lockfile with public registry

* pin package versions for dev compatibility

* feat(basic-host): add ?theme=hide query param to hide theme toggle in screenshots

- Add hideThemeToggle param to getQueryParams()
- Conditionally render ThemeToggle based on ?theme=hide
- Update e2e tests to use ?theme=hide for consistent screenshots

* update screenshots

* update screenshots

* fix(husky): load Node.js environment for GUI apps like GitHub Desktop

* fix(e2e): increase map-server wait time to 15s for tile loading

* fix(e2e): increase waitForAppLoad timeout to 30s for nested iframe loading

* ci: add workflow to update e2e snapshots

* ci: trigger snapshot update on push to this branch

* chore: update e2e snapshots [skip ci]

* ci: trigger CI after snapshot update

* style: fix prettier formatting in update-snapshots workflow

* fix: pin seroval, seroval-plugins, and solid-js for artifactory compatibility

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

examples/basic-server-solid/package.json

@@ -26,7 +26,7 @@
     "@modelcontextprotocol/sdk": "^1.24.0",
     "cors": "^2.8.5",
     "express": "^5.1.0",
-    "solid-js": "1.9.11",
+    "solid-js": "1.9.10",
     "zod": "^4.1.13"
   },
   "devDependencies": {