feat(03-02): navigation restructure, TotalsBar refactor, and setup hooks

- Move collection view from / to /collection with gear/planning tabs
- Rewrite / as dashboard with three summary cards (Collection, Planning, Setups)
- Refactor TotalsBar to accept optional stats/linkTo/title props
- Create DashboardCard component for dashboard summary cards
- Create useSetups hooks (CRUD + sync/remove item mutations)
- Update __root.tsx with route-aware TotalsBar, FAB visibility, resolve navigation
- Add item picker and setup delete UI state to uiStore
- Invalidate setups queries on item update/delete for stale data prevention
- Update routeTree.gen.ts with new collection/setups routes

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/client/routes/__root.tsx

@@ -59,14 +59,38 @@ function RootLayout() {
   const isItemPanelOpen = panelMode !== "closed";
   const isCandidatePanelOpen = candidatePanelMode !== "closed";
 
-  // Detect if we're on a thread detail page to get the threadId for candidate forms
+  // Route matching for contextual behavior
   const matchRoute = useMatchRoute();
+
   const threadMatch = matchRoute({
     to: "/threads/$threadId",
     fuzzy: true,
   }) as { threadId?: string } | false;
   const currentThreadId = threadMatch ? Number(threadMatch.threadId) : null;
 
+  const isDashboard = !!matchRoute({ to: "/" });
+  const isCollection = !!matchRoute({ to: "/collection", fuzzy: true });
+  const isSetupDetail = !!matchRoute({ to: "/setups/$setupId", fuzzy: true });
+
+  // Determine TotalsBar props based on current route
+  const totalsBarProps = isDashboard
+    ? { stats: [] as Array<{ label: string; value: string }> } // Title only, no stats, no link
+    : isSetupDetail
+      ? { linkTo: "/" } // Setup detail will render its own local bar; root bar just has link
+      : { linkTo: "/" }; // All other pages: default stats + link to dashboard
+
+  // On dashboard, don't show the default global stats - pass empty stats
+  // On collection, let TotalsBar fetch its own global stats (default behavior)
+  const finalTotalsProps = isDashboard
+    ? { stats: [] as Array<{ label: string; value: string }> }
+    : isCollection
+      ? { linkTo: "/" }
+      : { linkTo: "/" };
+
+  // FAB visibility: only show on /collection route when gear tab is active
+  const collectionSearch = matchRoute({ to: "/collection" }) as { tab?: string } | false;
+  const showFab = isCollection && (!collectionSearch || (collectionSearch as Record<string, string>).tab !== "planning");
+
   // Show a minimal loading state while checking onboarding status
   if (onboardingLoading) {
     return (
@@ -78,7 +102,7 @@ function RootLayout() {
 
   return (
     <div className="min-h-screen bg-gray-50">
-      <TotalsBar />
+      <TotalsBar {...finalTotalsProps} />
       <Outlet />
 
       {/* Item Slide-out Panel */}
@@ -135,13 +159,13 @@ function RootLayout() {
           onClose={closeResolveDialog}
           onResolved={() => {
             closeResolveDialog();
-            navigate({ to: "/", search: { tab: "planning" } });
+            navigate({ to: "/collection", search: { tab: "planning" } });
           }}
         />
       )}
 
-      {/* Floating Add Button - only on gear tab */}
-      {!threadMatch && (
+      {/* Floating Add Button - only on collection gear tab */}
+      {showFab && (
         <button
           type="button"
           onClick={openAddPanel}