fix(client): inherit current workspace for new sessions

packages/client/ui-sidebar/src/client/contract/slots.ts

@@ -58,8 +58,8 @@ export interface SidebarSettingsOwnerProps {
 export type SidebarRootInjected = {
   /**
    * Start a New Session: with a workspace, reuse-or-create its blank session
-   * and open it; without one, clear the selection into the New Session pure
-   * view state (the conversation.empty seat).
+   * and open it; without one, inherit the current Session Workspace, then the
+   * recent Workspace, or clear into the New Session pure view when none exist.
    */
   startSession: (workspaceId?: WorkspaceId) => void
   /** Toggle the sidebar column through the layout service. */

packages/client/ui-sidebar/src/client/index.ts

@@ -30,7 +30,7 @@ export function apply(ctx: ClientContext): void {
 
   const injectProps = (): SidebarRootInjected => ({
     // The shell's New Session button rides the runtime's shared action
-    // (recent-Workspace targeting; explicit Workspace wins for scoped actions).
+    // (current Session Workspace, then recent Workspace).
     startSession: (workspaceId) => { ctx.workspaces.startSession(workspaceId) },
     toggleSidebar: () => { ctx.layout.toggleSidebar() },
   })