fix(boltbot): address UI skills review — 16 violations

- min-h-screen → min-h-dvh for dynamic viewport
- arbitrary z-[100] → z-50 (fixed scale)
- removed tracking-tight/tracking-wide (letter-spacing not requested)
- replaced 3 URL-sync useEffects with inline wrapper functions
- initialParams moved to useRef (prevent re-computation per render)
- removed backdrop-blur-sm on full-screen overlay (perf)
- added text-balance on headings
- added min-w-0 on SessionView tool name truncate
- empty states now include guidance text with clear next action

extensions/boltbot/dashboard/src/App.tsx

@@ -12,10 +12,6 @@ import SessionView from "./components/SessionView";
 
 const LIMIT = 50;
 
-function getSearchParams() {
-  return new URLSearchParams(window.location.search);
-}
-
 function setSearchParams(params: Record<string, string>) {
   const url = new URL(window.location.href);
   for (const [k, v] of Object.entries(params)) {
@@ -26,7 +22,7 @@ function setSearchParams(params: Record<string, string>) {
 }
 
 export default function App() {
-  const initialParams = getSearchParams();
+  const initialParams = useRef(new URLSearchParams(window.location.search)).current;
   const [selectedTiers, setSelectedTiers] = useState<string[]>(() => {
     const tiers = initialParams.get("tiers");
     return tiers ? tiers.split(",").filter(Boolean) : [];
@@ -47,18 +43,18 @@ export default function App() {
   const { stats, isLoading: statsLoading, error: statsError } = useStats();
   const { receipts, isLoading: receiptsLoading, error: receiptsError } = useReceipts(LIMIT, 0);
 
-  // Sync URL with state changes
-  useEffect(() => {
-    setSearchParams({ view: viewMode === "list" ? "" : viewMode });
-  }, [viewMode]);
-
-  useEffect(() => {
-    setSearchParams({ tiers: selectedTiers.join(",") });
-  }, [selectedTiers]);
-
-  useEffect(() => {
-    setSearchParams({ anomalies: anomalyOnly ? "1" : "" });
-  }, [anomalyOnly]);
+  function updateViewMode(v: "list" | "sessions") {
+    setViewMode(v);
+    setSearchParams({ view: v === "list" ? "" : v });
+  }
+  function updateSelectedTiers(tiers: string[]) {
+    setSelectedTiers(tiers);
+    setSearchParams({ tiers: tiers.join(",") });
+  }
+  function updateAnomalyOnly(v: boolean) {
+    setAnomalyOnly(v);
+    setSearchParams({ anomalies: v ? "1" : "" });
+  }
 
   // Polling: merge new receipts at the top, do NOT touch loadedCount or hasMore
   useEffect(() => {
@@ -114,8 +110,8 @@ export default function App() {
   });
 
   return (
-    <div className="min-h-screen bg-neutral-950 text-neutral-100">
-      <a href="#main-content" className="sr-only focus:not-sr-only focus:fixed focus:top-2 focus:left-2 focus:z-[100] focus:bg-neutral-800 focus:text-white focus:px-4 focus:py-2 focus:rounded-lg">
+    <div className="min-h-dvh bg-neutral-950 text-neutral-100">
+      <a href="#main-content" className="sr-only focus:not-sr-only focus:fixed focus:top-2 focus:left-2 focus:z-50 focus:bg-neutral-800 focus:text-white focus:px-4 focus:py-2 focus:rounded-lg">
         Skip to main content
       </a>
       <Header />
@@ -126,7 +122,7 @@ export default function App() {
 
           <div className="flex items-center gap-2" role="tablist">
             <button
-              onClick={() => setViewMode("list")}
+              onClick={() => updateViewMode("list")}
               role="tab"
               aria-selected={viewMode === "list"}
               className={cn(
@@ -139,7 +135,7 @@ export default function App() {
               All Receipts
             </button>
             <button
-              onClick={() => setViewMode("sessions")}
+              onClick={() => updateViewMode("sessions")}
               role="tab"
               aria-selected={viewMode === "sessions"}
               className={cn(
@@ -155,9 +151,9 @@ export default function App() {
 
           <FilterControls
             selectedTiers={selectedTiers}
-            onTiersChange={setSelectedTiers}
+            onTiersChange={updateSelectedTiers}
             anomalyOnly={anomalyOnly}
-            onAnomalyOnlyChange={setAnomalyOnly}
+            onAnomalyOnlyChange={updateAnomalyOnly}
           />
 
           {viewMode === "list" ? (

extensions/boltbot/dashboard/src/components/Header.tsx

@@ -4,7 +4,7 @@ export default function Header() {
   return (
     <header aria-label="Boltbot" className="fixed top-0 left-0 right-0 z-50 h-14 flex items-center px-5 bg-neutral-900/80 backdrop-blur border-b border-neutral-800">
       <Zap className="w-5 h-5 text-emerald-400 mr-2" aria-hidden="true" />
-      <span className="text-lg font-bold tracking-tight" style={{ fontFamily: "'Space Grotesk', sans-serif" }}>
+      <span className="text-lg font-bold text-balance" style={{ fontFamily: "'Space Grotesk', sans-serif" }}>
         Boltbot
       </span>
     </header>

extensions/boltbot/dashboard/src/components/ReceiptDetail.tsx

@@ -114,7 +114,7 @@ export default function ReceiptDetail({ receipt, onClose }: Props) {
   return (
     <>
       <div
-        className="fixed inset-0 bg-black/50 backdrop-blur-sm z-50"
+        className="fixed inset-0 bg-black/60 z-50"
         onClick={onClose}
         role="button"
         aria-label="Close"
@@ -128,7 +128,7 @@ export default function ReceiptDetail({ receipt, onClose }: Props) {
       >
         <div key={receipt.id} className="p-5">
           <div className="flex items-center justify-between mb-5">
-            <h2 id="receipt-detail-title" className="text-lg font-bold truncate pr-4">{receipt.toolName}</h2>
+            <h2 id="receipt-detail-title" className="text-lg font-bold truncate pr-4 text-balance">{receipt.toolName}</h2>
             <button
               ref={closeButtonRef}
               onClick={onClose}

extensions/boltbot/dashboard/src/components/ReceiptList.tsx

@@ -50,14 +50,14 @@ export default function ReceiptList({
   if (receipts.length === 0) {
     return (
       <div className="text-neutral-400 text-sm text-center py-12">
-        No actions recorded yet
+        No actions recorded yet. Receipts appear here when your agent uses tools.
       </div>
     );
   }
 
   return (
     <div role="table" aria-label="Action receipts" aria-busy={isLoading}>
-      <div role="row" className="grid grid-cols-[1fr_80px_90px_40px_40px] gap-2 px-3 pb-2 text-neutral-400 text-xs uppercase tracking-wide">
+      <div role="row" className="grid grid-cols-[1fr_80px_90px_40px_40px] gap-2 px-3 pb-2 text-neutral-400 text-xs uppercase">
         <span role="columnheader">Tool</span>
         <span role="columnheader">Tier</span>
         <span role="columnheader">Time</span>

extensions/boltbot/dashboard/src/components/SessionView.tsx

@@ -103,7 +103,7 @@ function SessionCard({
       {expanded && (
         <div className="border-t border-neutral-800 p-3">
           <div role="table">
-            <div role="row" className="grid grid-cols-[1fr_80px_90px_40px_40px] gap-2 px-3 pb-2 text-neutral-400 text-xs uppercase tracking-wide">
+            <div role="row" className="grid grid-cols-[1fr_80px_90px_40px_40px] gap-2 px-3 pb-2 text-neutral-400 text-xs uppercase">
               <span role="columnheader">Tool</span>
               <span role="columnheader">Tier</span>
               <span role="columnheader">Time</span>
@@ -124,7 +124,7 @@ function SessionCard({
               }}
               className="grid grid-cols-[1fr_80px_90px_40px_40px] gap-2 items-center px-3 py-2 rounded-lg cursor-pointer hover:bg-neutral-800/30 transition-colors"
             >
-              <span role="cell" className="text-sm font-mono truncate">{r.toolName}</span>
+              <span role="cell" className="text-sm font-mono truncate min-w-0">{r.toolName}</span>
               <span role="cell">
                 <span className={cn("rounded-full px-2 py-0.5 text-xs", tierBadge[r.tier])}>
                   {r.tier}
@@ -162,7 +162,7 @@ export default function SessionView({ receipts, onSelectReceipt }: Props) {
   if (groups.length === 0) {
     return (
       <div className="text-neutral-400 text-sm text-center py-12">
-        No sessions recorded yet
+        No sessions recorded yet. Sessions appear here when your agent processes conversations.
       </div>
     );
   }

extensions/boltbot/dashboard/src/components/StatsCards.tsx

@@ -38,7 +38,7 @@ export default function StatsCards({ stats, isLoading, error }: Props) {
         >
           <div className="flex items-center gap-2 mb-2">
             <card.icon className={`w-4 h-4 ${card.color}`} aria-hidden="true" />
-            <span className="text-xs text-neutral-400 uppercase tracking-wide">
+            <span className="text-xs text-neutral-400 uppercase">
               {card.label}
             </span>
           </div>