Merge branch 'feat/unit-1-workspace-tab-store-navigation'

# Conflicts:
#	packages/app/src/app/h/[serverId]/workspace/[workspaceId]/_layout.tsx
#	packages/app/src/screens/workspace/workspace-agent-visibility.test.ts
#	packages/app/src/screens/workspace/workspace-agent-visibility.ts
#	packages/app/src/screens/workspace/workspace-screen.tsx

packages/app/src/screens/workspace/workspace-agent-visibility.ts

@@ -57,24 +57,8 @@ function setsEqual(a: Set<string>, b: Set<string>): boolean {
   return true;
 }
 
-export function canOpenAgentTabFromRoute(input: {
-  agentId: string;
-  agentsHydrated: boolean;
-  knownAgentIds: Set<string>;
-}): boolean {
-  if (!input.agentId.trim()) {
-    return false;
-  }
-  if (!input.agentsHydrated) {
-    return true;
-  }
-  return input.knownAgentIds.has(input.agentId);
-}
-
 // Prune agent tabs that are unknown (deleted) or archived.
 // Archived agents get pruned so that archiving on one client closes the tab on all clients.
-// Users can still explicitly open archived agents via navigation (openIntent),
-// which re-creates the tab in a separate effect.
 export function shouldPruneWorkspaceAgentTab(input: {
   agentId: string;
   agentsHydrated: boolean;