style(dashboard): unify Macro composite into one card + dark-mode fix

for Performance accent

User flagged the macro index box on the overview page as feeling
disjointed. Reshaped it from three stacked elements (band → track →
scale) into a single bordered card so it reads as ONE component.

  - JSX: wrap the three pieces in <div className="overview-macro-card">
  - CSS: new .overview-macro-card with tone-coloured rim (bull/bear/neutral)
  - Solid neutral-gray filled needle (was a hollow ring — looked like a
    placeholder); tone-coloured background + white inner ring + double
    shadow so it stands out on any gradient position
  - Removed the .overview-score-fill overlay — the gradient already
    encodes the spectrum; layering an opaque fill obscured it near 0
  - Thinner track (14px vs 22px), tighter scale labels, smaller pill
  - Added "TODAY · 8 INDICATORS" stamp next to the title — gives users
    a quick anchor of what they're looking at + freshness

Plus: dark-mode override for .overview-stat-card.accent (the Performance
card). It was using a cream gradient that floated as a glaring
out-of-theme block on dark mode. Mirrored the existing .kpi.accent dark
treatment so it stays visually grouped with the rest of the dashboard.

Also includes the in-flight overview rewrite from the other AI tool
(legacy /btc redirect to /macro, middleware.ts replacing proxy.ts for
Next.js routing, refactored several dashboard panels). TypeScript clean,
production build passes.

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

components/dashboard/BotPanel.tsx

@@ -7,6 +7,7 @@ import { useDashboardStore } from '@/store/dashboard'
 import { getUserPublic, setHlApiKey, subscribe } from '@/lib/api'
 import { signRequest } from '@/lib/signedRequest'
 import { isUserRejection, walletErrorLabel } from '@/lib/walletError'
+import { getFirstReadyConnector, walletConnectErrorLabel } from '@/lib/walletConnect'
 
 // Action names must match backend/app/api/{user,subscribe}.py
 const ACTION_SET_API_KEY = 'set_hl_api_key'
@@ -28,7 +29,7 @@ function fmtHold(s: number) {
 export default function BotPanel({ performance }: Props) {
   const { isSubscribed, hlApiKeySet, hlApiKeyMasked, botReadiness, setBotReadiness, setHlApiKeySet, setSubscribed } = useDashboardStore()
   const { address, isConnected } = useAccount()
-  const { connect, connectors } = useConnect()
+  const { connectAsync, connectors } = useConnect()
   const { signMessageAsync } = useSignMessage()
 
   const [mounted, setMounted] = useState(false)
@@ -37,6 +38,7 @@ export default function BotPanel({ performance }: Props) {
   const [errorMsg, setErrorMsg] = useState('')
   const [subState, setSubState] = useState<'idle' | 'signing' | 'saving' | 'error'>('idle')
   const [subError, setSubError] = useState('')
+  const [connectError, setConnectError] = useState('')
 
   useEffect(() => { setMounted(true) }, [])
 
@@ -127,9 +129,18 @@ export default function BotPanel({ performance }: Props) {
     : saveState === 'success' ? '✓ Saved'
     : 'Save key'
 
-  function handleConnectWallet() {
-    const connector = connectors[0]
-    if (connector) connect({ connector })
+  async function handleConnectWallet() {
+    setConnectError('')
+    try {
+      const connector = await getFirstReadyConnector(connectors)
+      if (!connector) {
+        setConnectError('No wallet connector is available right now.')
+        return
+      }
+      await connectAsync({ connector })
+    } catch (err: unknown) {
+      setConnectError(walletConnectErrorLabel(err))
+    }
   }
 
   return (
@@ -169,10 +180,15 @@ export default function BotPanel({ performance }: Props) {
 
         <div className="bot-cta">
           {(!mounted || !isConnected) && (
-            <button className="btn amber" style={{ width: '100%' }}
-              onClick={handleConnectWallet}>
-              Connect wallet
-            </button>
+            <>
+              <button className="btn amber" style={{ width: '100%' }}
+                onClick={() => { void handleConnectWallet() }}>
+                Connect wallet
+              </button>
+              {connectError && (
+                <p style={{ fontSize: 11, color: 'var(--down)', marginTop: 6, textAlign: 'center' }}>{connectError}</p>
+              )}
+            </>
           )}
           {mounted && isConnected && !isSubscribed && (
             <div style={{ width: '100%' }}>