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>

components/nav/Navbar.tsx

@@ -4,7 +4,6 @@ import { useState, useEffect } from 'react'
 import Link from 'next/link'
 import { usePathname } from 'next/navigation'
 import { useAccount, useConnect, useDisconnect } from 'wagmi'
-import { injected } from 'wagmi/connectors'
 
 function BrandMark() {
   return <span className="brand-mark">α</span>
@@ -46,10 +45,12 @@ function ThemeToggle() {
 export default function Navbar() {
   const pathname = usePathname()
   const { address, isConnected } = useAccount()
-  const { connect } = useConnect()
+  const { connect, connectors } = useConnect()
   const { disconnect } = useDisconnect()
   const [mounted, setMounted] = useState(false)
+  const [walletMenuOpen, setWalletMenuOpen] = useState(false)
   useEffect(() => { setMounted(true) }, [])
+  useEffect(() => { setWalletMenuOpen(false) }, [pathname, address])
 
   const locale = pathname.split('/')[1] || 'en'
   const path = '/' + pathname.split('/').slice(2).join('/')
@@ -98,45 +99,50 @@ export default function Navbar() {
           <div className="wallet-menu-wrap" style={{ position: 'relative' }}>
             <button
               className="wallet-chip"
-              onClick={(e) => {
-                e.stopPropagation()
-                const menu = (e.currentTarget.nextElementSibling as HTMLElement | null)
-                if (menu) menu.style.display = menu.style.display === 'block' ? 'none' : 'block'
-              }}
+              onClick={() => setWalletMenuOpen(open => !open)}
               onBlur={(e) => {
-                const menu = e.currentTarget.nextElementSibling as HTMLElement | null
-                setTimeout(() => { if (menu) menu.style.display = 'none' }, 150)
+                if (!e.currentTarget.parentElement?.contains(e.relatedTarget as Node | null)) {
+                  setWalletMenuOpen(false)
+                }
               }}
+              aria-expanded={walletMenuOpen}
+              aria-haspopup="menu"
             >
               <span className="ava" />
               <span className="mono">{shortAddr}</span>
             </button>
-            <div
-              style={{
-                display: 'none', position: 'absolute', right: 0, top: 'calc(100% + 6px)',
-                background: 'var(--bg-elev)', border: '1px solid var(--line)', borderRadius: 'var(--r-sm)',
-                minWidth: 180, padding: 6, zIndex: 1000, boxShadow: '0 4px 16px rgba(0,0,0,0.12)',
-              }}
-            >
+            <div className={`wallet-menu ${walletMenuOpen ? 'open' : ''}`} role="menu">
               <button
+                role="menuitem"
                 onMouseDown={(e) => {
                   e.preventDefault()
                   if (address) navigator.clipboard?.writeText(address)
+                  setWalletMenuOpen(false)
                 }}
-                style={{ width: '100%', padding: '8px 10px', fontSize: 13, textAlign: 'left', borderRadius: 6, color: 'var(--ink)' }}
               >
                 Copy address
               </button>
               <button
-                onMouseDown={(e) => { e.preventDefault(); disconnect() }}
-                style={{ width: '100%', padding: '8px 10px', fontSize: 13, textAlign: 'left', borderRadius: 6, color: 'var(--down)' }}
+                role="menuitem"
+                className="danger"
+                onMouseDown={(e) => {
+                  e.preventDefault()
+                  disconnect()
+                  setWalletMenuOpen(false)
+                }}
               >
                 Disconnect
               </button>
             </div>
           </div>
         ) : (
-          <button className="connect-btn lg" onClick={() => connect({ connector: injected() })}>
+          <button
+            className="connect-btn lg"
+            onClick={() => {
+              const connector = connectors[0]
+              if (connector) connect({ connector })
+            }}
+          >
             Connect wallet
           </button>
         )}