Keep selected projects when switching hosts (#2700)

* fix(app): preserve project selection across hosts

Rendered project identity and persisted equivalence were conflated after duplicate-project handling. Keep them separate so host changes resolve selectable equivalents deterministically without resetting legacy sidebar identity.

* fix(app): restore selected clone after host round trip

Keep manual origin and current destination placements separately so switching back restores the chosen checkout while archive gaps preserve the active host selection.

* fix(app): key status icons by project view

* fix(app): preserve origin during archive gaps

packages/app/src/schedules/schedule-project-targets.test.ts

@@ -8,7 +8,7 @@ import {
 
 function makeProject(overrides: Partial<ProjectSummary>): ProjectSummary {
   return {
-    projectKey: "proj",
+    viewKey: "proj",
     projectName: "Project",
     hosts: [],
     totalWorkspaceCount: 0,