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]/archive/page.tsx

@@ -6,6 +6,9 @@ import type { TrumpPost } from '@/types'
 import { getPosts } from '@/lib/api'
 import PostRow from '@/components/dashboard/PostCards'
 import PageHint from '@/components/ui/PageHint'
+import Pagination from '@/components/ui/Pagination'
+
+const ARCHIVE_PAGE_SIZE = 30
 
 const LIVE_SOURCES = new Set([
   'truth',
@@ -25,6 +28,7 @@ export default function ArchivePage() {
   const [loading, setLoading] = useState(true)
   const [loadErr, setLoadErr] = useState('')
   const [src, setSrc] = useState<string>('all')
+  const [archivePage, setArchivePage] = useState(1)
 
   useEffect(() => {
     getPosts(500, 1)
@@ -49,6 +53,9 @@ export default function ArchivePage() {
     () => src === 'all' ? archivePosts : archivePosts.filter(p => p.source === src),
     [archivePosts, src],
   )
+  const archiveTotalPages = Math.max(1, Math.ceil(filtered.length / ARCHIVE_PAGE_SIZE))
+  const archiveSafePage   = Math.min(archivePage, archiveTotalPages)
+  const archivePageItems  = filtered.slice((archiveSafePage - 1) * ARCHIVE_PAGE_SIZE, archiveSafePage * ARCHIVE_PAGE_SIZE)
 
   return (
     <div className="page">
@@ -67,7 +74,7 @@ export default function ArchivePage() {
         {[['all', archivePosts.length] as [string, number], ...sources].map(([s, n]) => (
           <button
             key={s}
-            onClick={() => setSrc(s)}
+            onClick={() => { setSrc(s); setArchivePage(1) }}
             style={{
               padding: '4px 10px', borderRadius: 6, border: '1px solid var(--line)',
               background: src === s ? 'var(--ink)' : 'transparent',
@@ -95,10 +102,19 @@ export default function ArchivePage() {
           {isZh ? '没有可显示的历史信号。' : 'No archived signals.'}
         </div>
       )}
-      {!loading && filtered.length > 0 && (
-        <div className="post-stream">
-          {filtered.map(p => <PostRow key={p.id} post={p} />)}
-        </div>
+      {!loading && archivePageItems.length > 0 && (
+        <>
+          <div className="post-stream">
+            {archivePageItems.map(p => <PostRow key={p.id} post={p} />)}
+          </div>
+          <Pagination
+            page={archiveSafePage}
+            total={archiveTotalPages}
+            count={filtered.length}
+            pageSize={ARCHIVE_PAGE_SIZE}
+            onChange={setArchivePage}
+          />
+        </>
       )}
     </div>
   )