feat: revamp dashboard, trades, and add landing/legal pages

- Major UI updates across dashboard, analytics, posts, trades, settings
- New landing page, robots/sitemap, contact/privacy/terms pages
- Updated globals.css with extensive styling and new landing.css
- Refactor signedRequest, realtime data hook, and dashboard store

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

lib/api.ts

@@ -52,6 +52,9 @@ export interface UserSettings {
   take_profit_pct: number | null
   stop_loss_pct: number | null
   min_confidence: number
+  daily_budget_usd: number | null
+  active_from: string | null   // ISO UTC
+  active_until: string | null  // ISO UTC
 }
 
 export interface UserData {

lib/signedRequest.ts

@@ -55,6 +55,25 @@ export interface SignedEnvelope {
  */
 const VIEW_TTL_MS = 4 * 60 * 1000
 
+/**
+ * Read-only: returns a cached, not-yet-expired view envelope if one exists.
+ * Never signs — never triggers a wallet popup. Returns null if no fresh cache.
+ */
+export function getCachedViewEnvelope(action: string, wallet: string): SignedEnvelope | null {
+  if (typeof window === 'undefined') return null
+  const cacheKey = `ts:view:${action}:${wallet.toLowerCase()}`
+  const raw = sessionStorage.getItem(cacheKey)
+  if (!raw) return null
+  try {
+    const env = JSON.parse(raw) as SignedEnvelope
+    if (Date.now() - env.timestamp < VIEW_TTL_MS) return env
+  } catch (err) {
+    console.warn('[signedRequest] corrupt cached envelope, ignoring', err)
+    sessionStorage.removeItem(cacheKey)
+  }
+  return null
+}
+
 export async function getOrCreateViewEnvelope(params: {
   action: string
   wallet: string
@@ -68,7 +87,10 @@ export async function getOrCreateViewEnvelope(params: {
     try {
       const env = JSON.parse(raw) as SignedEnvelope
       if (Date.now() - env.timestamp < VIEW_TTL_MS) return env
-    } catch {}
+    } catch (err) {
+      console.warn('[signedRequest] corrupt cached envelope, ignoring', err)
+      sessionStorage.removeItem(cacheKey)
+    }
   }
   const env = await signRequest({
     action: params.action,

lib/useRealtimeData.ts

@@ -16,9 +16,12 @@ interface Handlers {
 export function usePriceSocket(handlers: Handlers) {
   const wsRef = useRef<WebSocket | null>(null)
   const handlersRef = useRef(handlers)
+  const unmountedRef = useRef(false)
+  const reconnectTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
   handlersRef.current = handlers
 
   const connect = useCallback(() => {
+    if (unmountedRef.current) return
     const ws = new WebSocket(`${WS_URL}/ws/prices`)
     wsRef.current = ws
 
@@ -36,7 +39,10 @@ export function usePriceSocket(handlers: Handlers) {
     }
 
     ws.onclose = () => {
-      setTimeout(connect, 3000)
+      // Don't schedule a reconnect if the component already unmounted —
+      // otherwise we leak a socket per navigation forever.
+      if (unmountedRef.current) return
+      reconnectTimerRef.current = setTimeout(connect, 3000)
     }
 
     ws.onerror = () => {
@@ -45,8 +51,11 @@ export function usePriceSocket(handlers: Handlers) {
   }, [])
 
   useEffect(() => {
+    unmountedRef.current = false
     connect()
     return () => {
+      unmountedRef.current = true
+      if (reconnectTimerRef.current) clearTimeout(reconnectTimerRef.current)
       wsRef.current?.close()
     }
   }, [connect])