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/screens/new-workspace-initial-context.ts

@@ -1,5 +1,7 @@
 import {
   canCreateWorkspaceForHostProject,
+  filterWorkspaceProjectsForHost,
+  resolveHostProjectCandidate,
   type HostProjectListItem,
 } from "@/projects/host-projects";
 import type { HostRuntimeConnectionStatus } from "@/runtime/host-runtime";
@@ -25,35 +27,31 @@ function supportsAllProjects(
   return workspaceMultiplicityByServerId.get(serverId) === true;
 }
 
-function getProjectForServer(input: {
-  candidate: HostProjectListItem;
-  projects: readonly HostProjectListItem[];
-  serverId: string;
-}) {
-  return (
-    input.projects.find(
-      (project) =>
-        project.projectKey === input.candidate.projectKey &&
-        project.hosts.some((host) => host.serverId === input.serverId),
-    ) ?? input.candidate
-  );
-}
-
 function canUseProjectForServer(input: {
   project: HostProjectListItem;
   projects: readonly HostProjectListItem[];
   serverId: string;
   workspaceMultiplicityByServerId: ReadonlyMap<string, boolean>;
 }) {
-  const project = getProjectForServer({
-    candidate: input.project,
+  const allowAllProjects = supportsAllProjects(
+    input.workspaceMultiplicityByServerId,
+    input.serverId,
+  );
+  const selectableProjects = filterWorkspaceProjectsForHost({
     projects: input.projects,
     serverId: input.serverId,
+    allowAllProjects,
   });
+  const project =
+    resolveHostProjectCandidate({
+      candidate: input.project,
+      projects: selectableProjects,
+      serverId: input.serverId,
+    }) ?? input.project;
   return canCreateWorkspaceForHostProject({
     project,
     serverId: input.serverId,
-    allowAllProjects: supportsAllProjects(input.workspaceMultiplicityByServerId, input.serverId),
+    allowAllProjects,
   });
 }