feat(FN-3457): add native shell connection management for mobile and deskto

Merges shell connection infrastructure across desktop and mobile (NativeShellConnectionManager, NativeShellOnboardingModal, connection-profiles and native-shell plugins), strengthens the research store lifecycle with expanded test coverage, enhances WorkflowStepManager with new UI, and adds document

Fusion-Task-Id: FN-3457

packages/dashboard/app/components/AgentsView.css

@@ -187,37 +187,6 @@
   opacity: 0.3;
 }
 
-.agents-sidebar-quick-controls {
-  border-top: 1px solid var(--border);
-  padding: var(--space-md);
-  background: var(--surface);
-  flex-shrink: 0;
-  display: flex;
-  flex-direction: column;
-  gap: var(--space-sm);
-}
-
-.agents-sidebar-quick-controls__header {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  gap: var(--space-sm);
-}
-
-.agents-sidebar-quick-controls__meta {
-  display: flex;
-  flex-direction: column;
-  gap: var(--space-xs);
-  font-size: calc(var(--space-sm) + var(--space-xs));
-  color: var(--text-muted);
-}
-
-.agents-sidebar-quick-controls__actions {
-  display: flex;
-  flex-wrap: wrap;
-  gap: var(--space-sm);
-}
-
 .agents-view-loading {
   display: inline-flex;
   align-items: center;
@@ -1253,10 +1222,6 @@
     display: none;
   }
 
-  .agents-sidebar-quick-controls {
-    display: none;
-  }
-
   .agents-view-content {
     min-height: 0;
     overflow-y: auto;