Production polish: i18n shelved, PWA icons, SEO/GEO cleanup, UX fixes

Big-picture changes since 01be8e7:

New routes — /trump /btc /kol /trades /analytics /archive plus four
SEO landing pages (/methodology /glossary /case-studies /contact),
all served under /[locale]. Each has dedicated metadata + JSON-LD.

KOL page (new) — DigestWidget + OnchainWidget + TalkVsTradesWidget,
filter by handle/ticker, click-through to per-post detail with the
original AI-extracted ticker/conviction/quote.

BTC page (new) — tabbed: macro-bottom (AHR999 + 200WMA + Pi Cycle)
and funding-rate reversal, with live sparkline + threshold bands.

Telegram card on Settings — wallet-link code generation, status,
disconnect. Preferences moved into the bot itself (/trump /btc etc.)
so the card stays minimal.

SignalMonitor (new) — ETH/LINK Bollinger breakout monitor in its own
component, shares the singleton WsProvider so no second WS opens.

WS singleton refactor (lib/wsContext) — shared WsProvider + useWsSubscribe
hook. Cleanup now actively closes the socket on unmount; previously the
local `ws` couldn't be reached from cleanup and leaked one connection
per StrictMode remount.

OpenPositions polling no longer pops MetaMask in the background —
splits into load('first') for user-initiated and load('poll') that
uses getCachedViewEnvelope without signing.

i18n shelved — proxy.ts (Next 16 middleware rename) wires next-intl
but only Navbar + layout footer have translations. Rest of UI used
isZh ternary scattered across 28 files. All `const isZh = locale === 'zh'`
flipped to `const isZh = false` so every site renders English; Chinese
branches kept as dead code so revival is one regex away.
LanguageSwitch hidden but file kept. zh-CN hreflang removed from
metadata + sitemap to avoid duplicate-content penalties.

Wallet error handling — lib/walletError.ts: isUserRejection walks EIP-1193
code 4001 + .cause chain; previous string-match for "reject"/"denied"
broke for users running MetaMask in non-English UIs. 12 call sites
migrated across 5 components.

PWA icons — app/icon.tsx + app/apple-icon.tsx render the brand "α" via
Next's ImageResponse so no static PNG asset is required. manifest.ts
references /icon and /apple-icon dynamic routes.

OG image + sitemap + robots — dynamic 1200×630 OG card; robots blocks
both /en/settings and /zh/settings; sitemap only emits /en routes;
JSON-LD covers SoftwareApplication + Organization + 10-Q FAQPage.

Landing page polish — Launch Dashboard button stripped of magnetic
hover + shimmer + lift + glow expansion (multiple users found it busy);
hero scramble alphabet swapped to alphanumeric (was block characters);
"15 KOL feeds" copy updated to 19 in 5 places.

PostCards source icons — new entries for btc_bottom_reversal,
funding_reversal, kol_divergence so they no longer fall through to
the generic "first letter" fallback.

Archive page filter — excludes funding_reversal + kol_divergence
(previously only excluded truth + btc_bottom_reversal so new live
signals leaked into the legacy archive).

Cache + skeleton loading — lib/cache.ts SWR module with per-key TTL,
applied across the major pages so navigation feels instant.

SignConfirmSheet — 4 hardcoded Chinese strings translated to English
(English users were seeing zh-only "需要钱包签名" etc).

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

app/[locale]/btc/BtcPageClient.tsx

@@ -0,0 +1,417 @@
+'use client'
+
+import { useState, useEffect, useMemo } from 'react'
+import { useLocale } from 'next-intl'
+import type { TrumpPost } from '@/types'
+import { getPosts, getFundingSnapshot, type FundingSnapshot } from '@/lib/api'
+import { swrFetch } from '@/lib/cache'
+import PostRow from '@/components/dashboard/PostCards'
+import SystemControl from '@/components/signals/SystemControl'
+
+/**
+ * System 2 — BTC bottom-reversal. Its own dedicated page.
+ * Shows the scanner control + ONLY source === 'btc_bottom_reversal' signals.
+ */
+
+const SENTIMENTS = ['all', 'bullish', 'bearish', 'neutral'] as const
+type SentimentFilter = (typeof SENTIMENTS)[number]
+type BtcTab = 'bottom' | 'funding'
+
+interface BtcSignalPageProps {
+  initialPosts?: TrumpPost[] | null
+  initialFundingSnapshot?: FundingSnapshot | null
+}
+
+export default function BtcSignalPage({
+  initialPosts = null,
+  initialFundingSnapshot = null,
+}: BtcSignalPageProps) {
+  const locale = useLocale()
+  const isZh = false  // i18n shelved — Chinese branches kept as dead code for future revival; see messages/zh.json
+  const [posts, setPosts]     = useState<TrumpPost[]>(initialPosts ?? [])
+  const [loading, setLoading] = useState(initialPosts === null)
+  const [loadErr, setLoadErr] = useState('')
+  const [sentFilter, setSentFilter] = useState<SentimentFilter>('all')
+  const [tab, setTab] = useState<BtcTab>('bottom')
+
+  useEffect(() => {
+    // BTC on-chain signals update daily — 30 min TTL is safe
+    swrFetch(
+      'posts-500',
+      3 * 60_000,
+      () => getPosts(500, 1),
+      fresh => setPosts(fresh),
+    )
+      .then(p => { setPosts(p); setLoadErr('') })
+      .catch(e => setLoadErr(e instanceof Error ? e.message : (isZh ? '信号加载失败' : 'Failed to load signals')))
+      .finally(() => setLoading(false))
+  }, [isZh])
+
+  // Tab-scoped post source. 'bottom' = MVRV/200WMA confluence,
+  // 'funding' = funding-rate extreme reversal.
+  const tabSource = tab === 'bottom' ? 'btc_bottom_reversal' : 'funding_reversal'
+  const btcPosts = useMemo(
+    () => posts.filter(p => (p.source || '') === tabSource),
+    [posts, tabSource],
+  )
+  const filtered = useMemo(
+    () => btcPosts.filter(p => sentFilter === 'all' || p.sentiment === sentFilter),
+    [btcPosts, sentFilter],
+  )
+
+  const sentimentLabels: Record<SentimentFilter, string> = {
+    all: isZh ? '全部' : 'All',
+    bullish: isZh ? '看多' : 'Bullish',
+    bearish: isZh ? '看空' : 'Bearish',
+    neutral: isZh ? '中性' : 'Neutral',
+  }
+
+  return (
+    <div className="page">
+      <div className="page-head">
+        <div>
+          <h1 className="page-title">{isZh ? '② BTC 信号' : '② BTC Signal'}</h1>
+          <p className="page-sub">
+            {tab === 'bottom'
+              ? `Macro cycle bottom · ${btcPosts.length} signals`
+              : `Funding-rate extreme reversal · ${btcPosts.length} signals`}
+          </p>
+        </div>
+        <span className="chip"><span className="live-dot" />Live</span>
+      </div>
+
+      <SystemControl system="btc" />
+
+      {tab === 'bottom' && (
+        <div style={{ fontSize: 12, color: 'var(--ink-3)', lineHeight: 1.6, marginBottom: 12 }}>
+          This module tracks Bitcoin macro-bottom conditions. It only fires a long-only cycle signal when at least two of three classic bottom markers agree: AHR999, the 200-week moving average, and Pi Cycle Bottom.
+        </div>
+      )}
+
+      <div className="nav-tabs" style={{
+        background: 'var(--bg-sunk)', marginTop: 16, marginBottom: 12,
+      }}>
+        <button
+          onClick={() => setTab('bottom')}
+          className={`nav-tab ${tab === 'bottom' ? 'active' : ''}`}
+          style={{ border: 'none', cursor: 'pointer' }}
+        >
+          {isZh ? '周期底部' : 'Macro Bottom'}
+        </button>
+        <button
+          onClick={() => setTab('funding')}
+          className={`nav-tab ${tab === 'funding' ? 'active' : ''}`}
+          style={{ border: 'none', cursor: 'pointer' }}
+        >
+          {isZh ? '资金费率反转' : 'Funding Reversal'}
+        </button>
+      </div>
+
+      {tab === 'bottom' && (
+        <div style={{ fontSize: 12, color: 'var(--ink-3)', lineHeight: 1.5, marginBottom: 12 }}>
+          <>
+            Fires when <strong>≥2 of 3</strong> classic bottom signals agree:{' '}
+            <strong>AHR999&nbsp;&lt;&nbsp;0.45</strong> · <strong>price ≤ 200-week
+            MA</strong> · <strong>Pi Cycle Bottom</strong>. Long only, low frequency
+            (2–4 fires per cycle). Scans daily 00:45&nbsp;UTC. Designed to ride the
+            full cycle: holds up to <strong>18&nbsp;months</strong>, trailing-stop
+            exit, no take-profit. Keep leverage ≤2× — amplification comes from
+            pyramiding, not from cranking leverage.
+          </>
+        </div>
+      )}
+
+      {tab === 'funding' && (
+        <FundingPanel
+          isZh={isZh}
+          initialSnapshot={initialFundingSnapshot}
+        />
+      )}
+
+      <div style={{ display: 'flex', gap: 6, flexWrap: 'wrap', margin: '16px 0 12px' }}>
+        {SENTIMENTS.map(f => (
+          <button
+            key={f}
+            onClick={() => setSentFilter(f)}
+            style={{
+              padding: '4px 10px', borderRadius: 6, border: '1px solid var(--line)',
+              background: sentFilter === f ? 'var(--ink)' : 'transparent',
+              color: sentFilter === f ? 'var(--bg)' : 'var(--ink-3)',
+              fontSize: 11, cursor: 'pointer', fontWeight: sentFilter === f ? 600 : 400,
+            }}
+          >
+            {sentimentLabels[f]}
+          </button>
+        ))}
+      </div>
+
+      {loading && <BtcSkeleton />}
+      {!loading && loadErr && (
+        <div className="card" style={{ padding: 24, textAlign: 'center', color: 'var(--down)' }}>
+          ⚠️ {`Couldn’t load signals — ${loadErr}`}
+          <div style={{ marginTop: 10 }}>
+            <button className="btn ghost" style={{ fontSize: 12, padding: '6px 14px' }}
+              onClick={() => location.reload()}>{isZh ? '重试' : 'Retry'}</button>
+          </div>
+        </div>
+      )}
+      {!loading && !loadErr && filtered.length === 0 && (
+        <div className="card" style={{ padding: 48, textAlign: 'center', color: 'var(--ink-3)' }}>
+          {tab === 'bottom'
+            ? 'No macro-bottom signals yet.'
+            : 'No funding-reversal signals yet.'}
+          <div style={{ fontSize: 12, marginTop: 8 }}>
+            {tab === 'bottom'
+              ? 'This scanner is intentionally rare — only fires at genuine macro bottoms (daily 00:45 UTC).'
+              : 'Fires when 30-day cumulative funding exceeds ±3% AND starts mean-reverting. See the live panel above for current state.'}
+          </div>
+        </div>
+      )}
+      {!loading && filtered.length > 0 && (
+        <div className="post-stream">
+          {filtered.map(p => <PostRow key={p.id} post={p} />)}
+        </div>
+      )}
+    </div>
+  )
+}
+
+// ── Funding rate live panel ─────────────────────────────────────────────────
+function FundingPanel({
+  isZh,
+  initialSnapshot = null,
+}: {
+  isZh: boolean
+  initialSnapshot?: FundingSnapshot | null
+}) {
+  const [snap, setSnap] = useState<FundingSnapshot | null>(initialSnapshot)
+  const [err, setErr] = useState('')
+
+  useEffect(() => {
+    let alive = true
+    function load() {
+      swrFetch(
+        'funding-snapshot',
+        5 * 60_000, // 5 min — funding cadence is 1–8h, no point polling faster
+        () => getFundingSnapshot(),
+        fresh => { if (alive) setSnap(fresh) },
+      )
+        .then(s => { if (alive) { setSnap(s); setErr('') } })
+        .catch(e => { if (alive) setErr(e instanceof Error ? e.message : (isZh ? '加载失败' : 'load failed')) })
+    }
+    load()
+    const id = setInterval(load, 5 * 60_000)
+    return () => { alive = false; clearInterval(id) }
+  }, [isZh])
+
+  if (err) {
+    return (
+      <div className="card" style={{ padding: 14, color: 'var(--down)', fontSize: 12 }}>
+        {`Funding snapshot failed — ${err}`}
+      </div>
+    )
+  }
+  if (!snap) {
+    return (
+      <div className="skeleton-card">
+        <div className="skeleton sk-line sk-w-3q" />
+        <div className="skeleton sk-title sk-w-half" />
+        <div className="skeleton sk-line sk-w-full" />
+      </div>
+    )
+  }
+  if (!snap.ok) {
+    return (
+      <div className="card" style={{ padding: 14, color: 'var(--ink-3)', fontSize: 12 }}>
+        {`Funding data unavailable — ${snap.error || 'unknown error'}`}
+      </div>
+    )
+  }
+
+  // Color the cumulative figure by direction + extremity.
+  const cum = snap.cum_30d_pct ?? 0
+  const thr = snap.extreme_threshold_pct ?? 3
+  const extreme = Math.abs(cum) >= thr
+  const cumColor = extreme ? (cum > 0 ? 'var(--down)' : 'var(--up)') : 'var(--ink)'
+
+  // Direction hint if extreme (longs paying = SHORT setup; shorts paying = LONG)
+  const directionHint = extreme
+    ? (cum > 0
+        ? 'Longs are crowded; reversal bias is SHORT.'
+        : 'Shorts are crowded; reversal bias is LONG.')
+    : 'Funding remains inside the normal range.'
+
+  return (
+    <div className="card" style={{ padding: 16, marginBottom: 12 }}>
+      <div style={{
+        display: 'flex', justifyContent: 'space-between', alignItems: 'baseline',
+        flexWrap: 'wrap', gap: 12, marginBottom: 12,
+      }}>
+        <div style={{ fontSize: 14, fontWeight: 700 }}>
+          BTC perp funding · live
+        </div>
+        <div style={{ fontSize: 11, color: 'var(--ink-4)' }}>
+          {`${snap.cadence_hours}h cadence · ${snap.coverage_days}d coverage · Binance`}
+        </div>
+      </div>
+
+      <div style={{
+        display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(140px, 1fr))',
+        gap: 12, marginBottom: 12,
+      }}>
+        <StatBox
+          label="Latest cycle"
+          value={`${snap.latest_rate_pct?.toFixed(4)}%`}
+        />
+        <StatBox
+          label="Last 24h avg"
+          value={`${snap.last_24h_avg_pct?.toFixed(4)}%`}
+        />
+        <StatBox
+          label="30d cumulative"
+          value={`${cum >= 0 ? '+' : ''}${cum.toFixed(2)}%`}
+          color={cumColor}
+          sub={`extreme @ ±${thr}%`}
+        />
+        <StatBox
+          label="Signal"
+          value={snap.signal_fired
+            ? '🚨 FIRED'
+            : extreme
+              ? '⏳ Watching'
+              : '✓ Quiet'}
+          color={snap.signal_fired ? 'var(--down)' : extreme ? 'var(--amber, #f59e0b)' : 'var(--up)'}
+        />
+      </div>
+
+      <div style={{
+        padding: '8px 12px', borderRadius: 6, fontSize: 12,
+        background: extreme ? 'var(--down-soft, rgba(220,38,38,.08))' : 'var(--bg-sunk)',
+        color: extreme ? 'var(--down)' : 'var(--ink-3)',
+        marginBottom: 12,
+      }}>
+        {directionHint}
+        {snap.debug?.reason && (
+          <span style={{ color: 'var(--ink-4)', marginLeft: 8 }}>
+            ({String(snap.debug.reason).replaceAll('_', ' ')})
+          </span>
+        )}
+      </div>
+
+      {snap.history && snap.history.length > 1 && (
+        <FundingSparkline
+          history={snap.history}
+          cadenceHours={snap.cadence_hours ?? 8}
+          extremeCumPct={thr}
+          isZh={isZh}
+        />
+      )}
+    </div>
+  )
+}
+
+function StatBox({ label, value, color, sub }: {
+  label: string; value: string; color?: string; sub?: string
+}) {
+  return (
+    <div style={{
+      padding: 10, background: 'var(--bg-sunk)', borderRadius: 6,
+      border: '1px solid var(--line)',
+    }}>
+      <div style={{ fontSize: 10, color: 'var(--ink-4)', textTransform: 'uppercase',
+                    letterSpacing: '.06em', marginBottom: 4 }}>{label}</div>
+      <div style={{ fontSize: 16, fontWeight: 700, color: color || 'var(--ink)',
+                    fontVariantNumeric: 'tabular-nums' }}>{value}</div>
+      {sub && <div style={{ fontSize: 10, color: 'var(--ink-4)', marginTop: 2 }}>{sub}</div>}
+    </div>
+  )
+}
+
+// Tiny inline SVG sparkline of the last 7 days of funding cycles.
+// `extremeCumPct` is the 30d cumulative threshold (e.g. 3.0). To project it as
+// a per-cycle reference line we divide by the number of cycles in 30 days at
+// the venue's cadence (24h × 30d / cadence_h). This is the per-cycle rate that
+// — sustained for 30 days — would hit the extreme bucket.
+function FundingSparkline({ history, cadenceHours, extremeCumPct, isZh }: {
+  history: { t: number; rate_pct: number }[]
+  cadenceHours: number
+  extremeCumPct: number
+  isZh: boolean
+}) {
+  const W = 600, H = 90, PAD = 6
+  const cyclesIn30d = Math.max(1, (30 * 24) / Math.max(cadenceHours, 0.5))
+  const perCycleThr = extremeCumPct / cyclesIn30d   // e.g. 3% / 90 ≈ 0.033%
+
+  const rates = history.map(h => h.rate_pct)
+  // Ensure threshold lines are always visible in the y-range
+  const minR = Math.min(...rates, -perCycleThr * 1.2)
+  const maxR = Math.max(...rates,  perCycleThr * 1.2)
+  const span = maxR - minR || 1
+  const x = (i: number) => PAD + (i / (history.length - 1)) * (W - 2 * PAD)
+  const y = (r: number) => PAD + (1 - (r - minR) / span) * (H - 2 * PAD)
+  const zeroY = y(0)
+  const posThrY = y(perCycleThr)
+  const negThrY = y(-perCycleThr)
+  const path = history.map((h, i) => `${i === 0 ? 'M' : 'L'} ${x(i)} ${y(h.rate_pct)}`).join(' ')
+  const last = history[history.length - 1]
+  // Color the dot by whether the latest cycle is inside the danger band
+  const inDanger = Math.abs(last.rate_pct) >= perCycleThr
+  const dotColor = inDanger
+    ? (last.rate_pct > 0 ? 'var(--down)' : 'var(--up)')
+    : 'var(--amber, #f59e0b)'
+
+  return (
+    <div>
+      <div style={{
+        display: 'flex', justifyContent: 'space-between',
+        fontSize: 10, color: 'var(--ink-4)', marginBottom: 4,
+      }}>
+        <span>{isZh ? '7 日资金费率（单周期 %）' : '7-day funding (per-cycle %)'}</span>
+        <span>{isZh ? `危险区间：每周期 ±${perCycleThr.toFixed(3)}%` : `danger band: ±${perCycleThr.toFixed(3)}% / cycle`}</span>
+      </div>
+      <svg viewBox={`0 0 ${W} ${H}`} style={{ width: '100%', height: H, display: 'block' }}>
+        {/* danger zones — shaded above +thr and below -thr */}
+        <rect x={PAD} y={PAD} width={W - 2 * PAD} height={Math.max(0, posThrY - PAD)}
+              fill="var(--down)" opacity={0.07} />
+        <rect x={PAD} y={negThrY} width={W - 2 * PAD} height={Math.max(0, H - PAD - negThrY)}
+              fill="var(--up)" opacity={0.07} />
+
+        {/* zero line */}
+        <line x1={PAD} x2={W - PAD} y1={zeroY} y2={zeroY}
+              stroke="var(--line-2, var(--line))" strokeWidth={1} />
+        {/* positive / negative threshold lines */}
+        <line x1={PAD} x2={W - PAD} y1={posThrY} y2={posThrY}
+              stroke="var(--down)" strokeWidth={1} strokeDasharray="3 3" opacity={0.6} />
+        <line x1={PAD} x2={W - PAD} y1={negThrY} y2={negThrY}
+              stroke="var(--up)" strokeWidth={1} strokeDasharray="3 3" opacity={0.6} />
+
+        {/* funding curve */}
+        <path d={path} fill="none" stroke="var(--amber, #f59e0b)" strokeWidth={1.5} />
+        {/* current value dot */}
+        <circle cx={x(history.length - 1)} cy={y(last.rate_pct)} r={3.5} fill={dotColor} />
+      </svg>
+    </div>
+  )
+}
+
+function BtcSkeleton() {
+  return (
+    <div className="post-stream" style={{ marginTop: 8 }}>
+      {Array.from({ length: 3 }).map((_, i) => (
+        <div key={i} className="skeleton-card" style={{ marginBottom: 8 }}>
+          <div style={{ display: 'flex', gap: 8 }}>
+            <div className="skeleton sk-line-sm" style={{ width: 80 }} />
+            <div className="skeleton sk-line-sm" style={{ width: 60 }} />
+          </div>
+          <div className="skeleton sk-title sk-w-3q" />
+          <div className="skeleton sk-line sk-w-full" />
+          <div className="skeleton sk-line sk-w-half" />
+          <div style={{ display: 'flex', gap: 8, marginTop: 4 }}>
+            <div className="skeleton sk-line-sm" style={{ width: 56 }} />
+            <div className="skeleton sk-line-sm" style={{ width: 80 }} />
+          </div>
+        </div>
+      ))}
+    </div>
+  )
+}

app/[locale]/btc/page.tsx

@@ -0,0 +1,71 @@
+import { getFundingSnapshot, getPosts } from '@/lib/api'
+import type { Metadata } from 'next'
+import BtcPageClient from './BtcPageClient'
+
+const siteUrl = process.env.NEXT_PUBLIC_SITE_URL || 'https://trumpsignal.com'
+export const revalidate = 30
+
+interface BtcPageProps {
+  params: Promise<{ locale: string }>
+}
+
+export async function generateMetadata({
+  params,
+}: BtcPageProps): Promise<Metadata> {
+  const { locale } = await params
+  const isZh = false  // i18n shelved — Chinese branches kept as dead code for future revival; see messages/zh.json
+
+  return {
+    title: isZh ? 'BTC 周期底部信号扫描器' : 'BTC Bottom Reversal Scanner',
+    description: isZh
+      ? 'Trump Alpha 的比特币周期底部扫描器，使用 AHR999、200 周均线和 Pi Cycle Bottom 三项经典信号做 2-of-3 共振判断，识别低频、高确定性的 BTC 长线底部区域。'
+      : 'Bitcoin macro-bottom scanner using a 2-of-3 price confluence: AHR999 deep-value zone, price near the 200-week moving average, and Pi Cycle Bottom. Rare, high-conviction long-only signals.',
+    keywords: isZh
+      ? [
+          'BTC 底部信号',
+          '比特币周期底部',
+          'AHR999',
+          '200 周均线',
+          'Pi Cycle Bottom',
+          '比特币反转信号',
+          '加密价格共振',
+        ]
+      : [
+          'Bitcoin bottom signal',
+          'AHR999',
+          '200-week moving average',
+          'Pi Cycle Bottom',
+          'BTC cycle bottom',
+          'Bitcoin macro bottom',
+          'Bitcoin reversal signal',
+          'crypto price confluence',
+        ],
+    openGraph: {
+      title: isZh ? 'BTC 周期底部信号扫描器 | Trump Alpha' : 'BTC Bottom Reversal Scanner | Trump Alpha',
+      description: isZh
+        ? '用 AHR999、200 周均线和 Pi Cycle Bottom 识别比特币宏观底部。低频，但每次触发都服务于长周期反转。'
+        : 'Bitcoin macro-bottom detector: 2-of-3 confluence across AHR999, 200-week MA, and Pi Cycle Bottom. Rare, high-conviction long-only signals.',
+    },
+    alternates: {
+      canonical: `${siteUrl}/${locale}/btc`,
+      languages: {
+        en: `${siteUrl}/en/btc`,
+        'x-default': `${siteUrl}/en/btc`,
+      },
+    },
+  }
+}
+
+export default async function BtcPage() {
+  const [posts, fundingSnapshot] = await Promise.all([
+    getPosts(500, 1).catch(() => null),
+    getFundingSnapshot().catch(() => null),
+  ])
+
+  return (
+    <BtcPageClient
+      initialPosts={posts}
+      initialFundingSnapshot={fundingSnapshot}
+    />
+  )
+}