fix(web): allow workbench without projects

apps/web_v1/src/pages/projects/project-rail.tsx

@@ -14,7 +14,7 @@ export function ProjectRail({
   onSelectProject,
   onCreateProject,
 }: {
-  activeProject: Project
+  activeProject?: Project
   projects: Project[]
   activeView: WorkbenchView
   onSelectWorkspace: () => void
@@ -42,7 +42,7 @@ export function ProjectRail({
         {projects.map((project) => (
           <Badge key={project.id} count={project.badge} dot={false} className={project.urgent ? 'project-badge urgent' : 'project-badge'}>
             <button
-              className={activeView === 'project' && activeProject.id === project.id ? 'project-button active' : 'project-button'}
+              className={activeView === 'project' && activeProject?.id === project.id ? 'project-button active' : 'project-button'}
               onClick={() => onSelectProject(project)}
               style={{ '--project-color': project.color } as CSSProperties}
               title={project.name}