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/hooks/use-sidebar-shortcut-model.test.tsx

@@ -17,7 +17,7 @@ function workspace(projectKey: string, workspaceId: string): SidebarWorkspaceEnt
     workspaceKey: `srv:${workspaceId}`,
     serverId: "srv",
     workspaceId,
-    projectKey,
+    projectViewKey: projectKey,
     projectName: projectKey,
     projectRootPath: `/repo/${projectKey}`,
     workspaceDirectory: `/repo/${projectKey}/${workspaceId}`,
@@ -40,7 +40,7 @@ function workspace(projectKey: string, workspaceId: string): SidebarWorkspaceEnt
 
 function project(projectKey: string): SidebarProjectEntry {
   return {
-    projectKey,
+    viewKey: projectKey,
     projectName: projectKey,
     projectKind: "git",
     iconWorkingDir: `/repo/${projectKey}`,