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]/globals.css

@@ -363,7 +363,7 @@ html[data-theme="dark"] .asset-switch button.on { background: var(--surface-2);
 .page {
   max-width: 1360px;
   margin: 0 auto;
-  padding: 32px 28px 80px;
+  padding: 28px 28px 64px;
   width: 100%;
 }
 .page.wide { max-width: 1600px; }
@@ -372,20 +372,20 @@ html[data-theme="dark"] .asset-switch button.on { background: var(--surface-2);
   display: flex;
   align-items: flex-end;
   justify-content: space-between;
-  margin-bottom: 28px;
+  margin-bottom: 24px;
   gap: 24px;
 }
 .page-title {
-  font-size: 34px;
-  letter-spacing: -0.02em;
-  font-weight: 600;
-  line-height: 1.05;
+  font-size: 28px;
+  letter-spacing: -0.025em;
+  font-weight: 700;
+  line-height: 1.1;
   margin: 0;
 }
 .page-sub {
   color: var(--ink-3);
-  font-size: 14px;
-  margin-top: 6px;
+  font-size: 13px;
+  margin-top: 5px;
   margin-bottom: 0;
 }