fix: pre-launch UI hardening + KOL reduce-action type, proxy IP relay, settings redesign

Frontend half of the pre-launch audit campaign:

- types/index.ts + kol/KolPageClient.tsx: add missing 'reduce' KolAction
  (backend emits it; frontend lacked the type + color/label maps → undefined
  styling). Adds ACTION_COLOR/actionLabel/postActionLabel entries.
- proxy/[...path]/route.ts: relay real client IP (x-forwarded-for / x-real-ip)
  so the backend rate limiter buckets per-user instead of per-Next-server (BUG-02).
- Settings/BotConfigPanel redesign, paper-mode clarity, copy cleanup.
- Assorted page/display fixes, loading states, Pagination component.

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

app/[locale]/trades/loading.tsx

@@ -0,0 +1,21 @@
+export default function TradesLoading() {
+  return (
+    <div className="page">
+      <div className="page-head">
+        <div className="skeleton sk-title" style={{ width: 140, marginBottom: 8 }} />
+      </div>
+      <div style={{ marginTop: 16 }}>
+        {Array.from({ length: 6 }).map((_, i) => (
+          <div key={i} className="skeleton-card" style={{ marginBottom: 8, padding: 16 }}>
+            <div style={{ display: 'flex', gap: 12, alignItems: 'center' }}>
+              <div className="skeleton sk-line" style={{ width: 40 }} />
+              <div className="skeleton sk-line" style={{ width: 60 }} />
+              <div className="skeleton sk-line" style={{ width: 80 }} />
+              <div className="skeleton sk-line" style={{ width: 100 }} />
+            </div>
+          </div>
+        ))}
+      </div>
+    </div>
+  )
+}