feat(pwa): pre-install naming, install UX, and manifest shortcuts (#554)

* feat(web-pwa): add dynamic manifest endpoint with blob fallback

* feat(ui-pwa): add install prompt and manifest sync hooks

* feat(settings): add web-only preinstall app name preference

* fix(web-pwa): scope recent shortcuts to active project sessions

---------

Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>

packages/ui/src/lib/api/types.ts

@@ -537,6 +537,7 @@ export interface SettingsPayload {
   openInAppId?: string;
   gitProviderId?: string;
   gitModelId?: string;
+  pwaAppName?: string;
 
   [key: string]: unknown;
 }