* test(app/e2e): cover 5 error-UX paths + host indicator + script removal for project settings
Add helpers/project-settings.ts DSL helpers and extend projects-settings.spec.ts
with 5 new tests covering the error paths dropped by PR #725:
- stale_project_config callout + disabled save + reload recovery
- invalid_project_config read callout + reload after fix
- write_failed callout + retry + reload recovery
- single-host static indicator vs picker chip
- script removal via kebab menu + confirm dialog
* refactor(app/e2e): unslop project-settings helpers and spec
- Fix removeProjectScript: derive trigger testID from row testID instead
of using scoped locator (which was timing out)
- Extract inline writeFile call in invalid-config test to restorePaseoConfig helper
- Replace raw testID click in write_failed test with clickReloadProjectSettings
- Remove writeFile from spec imports; drop defensive ?? "" fallback
* test(app/e2e): add read-transport and offline no-target tests for project settings
- Add read-transport failure test: WS-level drop during readProjectConfig triggers
read-transport-callout; Reload retries until WS reconnects and refetch succeeds.
- Add no-target test: WS drop after form load triggers NoEditableTarget via live
connectionStatus check (useHostRuntimeSnapshot) on the selected host.
- Hoist openProjects/editWorktreeSetup from spec body into project-settings helper.
- Fix expectNoProjectSettingsError to accept optional timeout (needed for toPass loop).
- Add isHostGone to renderContent: after readQuery errors are checked, offline/error
connectionStatus renders NoEditableTarget without unmounting ProjectSettingsBody.
* fixup(app/e2e): correct misleading comments on WS close → error-state mapping