feat(FN-813): add project-aware ntfy deep links

- Thread real project context (projectName, projectId) into ntfy notification deep links
- Dashboard deep-link URL now honors project context with /project/:name/task/:id pattern
- Update App.tsx routing to handle project-scoped deep link navigation
- Add project info to NtfyNotifier types and wire through notification payload
- Add changeset for published @gsxdsm/fusion package
- Add tests for notifier project context and dashboard routing

packages/core/src/types.ts

@@ -608,7 +608,9 @@ export interface GlobalSettings {
   ntfyEvents?: NtfyNotificationEvent[];
   /** Dashboard hostname for ntfy.sh deep links. When set along with ntfyEnabled
    *  and ntfyTopic, notifications include a Click URL that opens the dashboard
-   *  directly to the task. Example: "http://localhost:3000" or "https://fusion.example.com" */
+   *  directly to the task. In multi-project setups the URL includes both
+   *  ?project=<id>&task=<id> so the dashboard opens the correct project first.
+   *  Example: "http://localhost:3000" or "https://fusion.example.com" */
   ntfyDashboardHost?: string;
   /** The default project ID for CLI operations when --project flag is not provided.
    *  Used to determine which project to operate on when not in a project directory.