Add signal quality version comparison to analytics dashboard

- Created /api/analytics/version-comparison endpoint
- Shows performance metrics for v1, v2, v3 scoring logic
- Compares: trade count, win rate, P&L, quality scores, MFE/MAE
- Special focus on extreme positions (< 15% or > 85% range)
- Tracks weak ADX count (< 18) for each version
- Visual indicators for current version (v3)
- Data collection progress notice for v3 (need 20+ trades)
- Legend explaining MFE, MAE, extreme positions, weak ADX

Enables data-driven optimization by comparing algorithm performance
with clean, version-tagged datasets.

app/analytics/page.tsx

@@ -67,10 +67,34 @@ interface PositionSummary {
   netPositions: NetPosition[]
 }
 
+interface VersionStats {
+  version: string
+  tradeCount: number
+  winRate: number
+  totalPnL: number
+  avgPnL: number
+  avgQualityScore: number | null
+  avgMFE: number | null
+  avgMAE: number | null
+  extremePositions: {
+    count: number
+    avgADX: number | null
+    weakADXCount: number
+    winRate: number
+    avgPnL: number
+  }
+}
+
+interface VersionComparison {
+  versions: VersionStats[]
+  descriptions: Record<string, string>
+}
+
 export default function AnalyticsPage() {
   const [stats, setStats] = useState<Stats | null>(null)
   const [positions, setPositions] = useState<PositionSummary | null>(null)
   const [lastTrade, setLastTrade] = useState<LastTrade | null>(null)
+  const [versionComparison, setVersionComparison] = useState<VersionComparison | null>(null)
   const [loading, setLoading] = useState(true)
   const [selectedDays, setSelectedDays] = useState(30)
 
@@ -81,19 +105,22 @@ export default function AnalyticsPage() {
   const loadData = async () => {
     setLoading(true)
     try {
-      const [statsRes, positionsRes, lastTradeRes] = await Promise.all([
+      const [statsRes, positionsRes, lastTradeRes, versionRes] = await Promise.all([
         fetch(`/api/analytics/stats?days=${selectedDays}`),
         fetch('/api/analytics/positions'),
         fetch('/api/analytics/last-trade'),
+        fetch('/api/analytics/version-comparison'),
       ])
 
       const statsData = await statsRes.json()
       const positionsData = await positionsRes.json()
       const lastTradeData = await lastTradeRes.json()
+      const versionData = await versionRes.json()
 
       setStats(statsData.stats)
       setPositions(positionsData.summary)
       setLastTrade(lastTradeData.trade)
+      setVersionComparison(versionData.success ? versionData : null)
     } catch (error) {
       console.error('Failed to load analytics:', error)
     }
@@ -250,6 +277,180 @@ export default function AnalyticsPage() {
           </div>
         )}
 
+        {/* Signal Quality Version Comparison */}
+        {versionComparison && versionComparison.versions.length > 0 && (
+          <div className="mb-8">
+            <h2 className="text-xl font-bold text-white mb-4">🔬 Signal Quality Logic Versions</h2>
+            <div className="bg-gray-800/50 backdrop-blur-sm rounded-xl p-6 border border-gray-700">
+              <p className="text-gray-300 text-sm mb-6 leading-relaxed">
+                The bot has evolved through different signal quality scoring algorithms. 
+                This section compares their performance to enable data-driven optimization.
+              </p>
+
+              <div className="space-y-4">
+                {versionComparison.versions.map((version, idx) => {
+                  const isCurrentVersion = version.version === 'v3'
+                  return (
+                    <div 
+                      key={version.version} 
+                      className={`p-5 rounded-lg border ${isCurrentVersion ? 'bg-blue-900/20 border-blue-500/50' : 'bg-gray-700/30 border-gray-600'}`}
+                    >
+                      <div className="flex items-start justify-between mb-4">
+                        <div className="flex-1">
+                          <div className="flex items-center space-x-3 mb-2">
+                            <h3 className={`text-lg font-bold ${isCurrentVersion ? 'text-blue-400' : 'text-white'}`}>
+                              {version.version.toUpperCase()}
+                              {isCurrentVersion && (
+                                <span className="ml-2 px-2 py-1 text-xs bg-blue-600 text-white rounded-full">
+                                  CURRENT
+                                </span>
+                              )}
+                            </h3>
+                          </div>
+                          <p className="text-sm text-gray-400">
+                            {versionComparison.descriptions[version.version] || 'Unknown version'}
+                          </p>
+                        </div>
+                      </div>
+
+                      {/* Main Metrics Grid */}
+                      <div className="grid grid-cols-2 md:grid-cols-4 gap-3 mb-4">
+                        <div className="bg-gray-800/50 rounded-lg p-3">
+                          <div className="text-xs text-gray-400 mb-1">Trades</div>
+                          <div className="text-xl font-bold text-white">{version.tradeCount}</div>
+                        </div>
+
+                        <div className="bg-gray-800/50 rounded-lg p-3">
+                          <div className="text-xs text-gray-400 mb-1">Win Rate</div>
+                          <div className={`text-xl font-bold ${version.winRate >= 50 ? 'text-green-400' : 'text-red-400'}`}>
+                            {version.winRate}%
+                          </div>
+                        </div>
+
+                        <div className="bg-gray-800/50 rounded-lg p-3">
+                          <div className="text-xs text-gray-400 mb-1">Total P&L</div>
+                          <div className={`text-xl font-bold ${version.totalPnL >= 0 ? 'text-green-400' : 'text-red-400'}`}>
+                            {version.totalPnL >= 0 ? '+' : ''}${version.totalPnL.toFixed(2)}
+                          </div>
+                        </div>
+
+                        <div className="bg-gray-800/50 rounded-lg p-3">
+                          <div className="text-xs text-gray-400 mb-1">Avg P&L</div>
+                          <div className={`text-xl font-bold ${version.avgPnL >= 0 ? 'text-green-400' : 'text-red-400'}`}>
+                            {version.avgPnL >= 0 ? '+' : ''}${version.avgPnL.toFixed(2)}
+                          </div>
+                        </div>
+                      </div>
+
+                      {/* Advanced Metrics */}
+                      <div className="grid grid-cols-2 md:grid-cols-3 gap-3 mb-4">
+                        {version.avgQualityScore !== null && (
+                          <div className="bg-gray-800/50 rounded-lg p-3">
+                            <div className="text-xs text-gray-400 mb-1">Avg Quality Score</div>
+                            <div className={`text-lg font-semibold ${version.avgQualityScore >= 75 ? 'text-green-400' : 'text-yellow-400'}`}>
+                              {version.avgQualityScore}/100
+                            </div>
+                          </div>
+                        )}
+
+                        {version.avgMFE !== null && (
+                          <div className="bg-gray-800/50 rounded-lg p-3">
+                            <div className="text-xs text-gray-400 mb-1">Avg MFE</div>
+                            <div className="text-lg font-semibold text-green-400">
+                              +{version.avgMFE.toFixed(2)}%
+                            </div>
+                          </div>
+                        )}
+
+                        {version.avgMAE !== null && (
+                          <div className="bg-gray-800/50 rounded-lg p-3">
+                            <div className="text-xs text-gray-400 mb-1">Avg MAE</div>
+                            <div className="text-lg font-semibold text-red-400">
+                              {version.avgMAE.toFixed(2)}%
+                            </div>
+                          </div>
+                        )}
+                      </div>
+
+                      {/* Extreme Position Stats */}
+                      {version.extremePositions.count > 0 && (
+                        <div className="pt-4 border-t border-gray-600/50">
+                          <div className="text-xs text-gray-400 mb-3 flex items-center">
+                            <span className="text-yellow-500 mr-2">⚠️</span>
+                            Extreme Positions (&lt; 15% or &gt; 85% range)
+                          </div>
+                          <div className="grid grid-cols-2 md:grid-cols-5 gap-2">
+                            <div className="bg-gray-800/50 rounded p-2">
+                              <div className="text-xs text-gray-500">Count</div>
+                              <div className="text-sm font-semibold text-white">
+                                {version.extremePositions.count}
+                              </div>
+                            </div>
+
+                            {version.extremePositions.avgADX !== null && (
+                              <div className="bg-gray-800/50 rounded p-2">
+                                <div className="text-xs text-gray-500">Avg ADX</div>
+                                <div className={`text-sm font-semibold ${version.extremePositions.avgADX >= 18 ? 'text-green-400' : 'text-orange-400'}`}>
+                                  {version.extremePositions.avgADX.toFixed(1)}
+                                </div>
+                              </div>
+                            )}
+
+                            <div className="bg-gray-800/50 rounded p-2">
+                              <div className="text-xs text-gray-500">Weak ADX</div>
+                              <div className="text-sm font-semibold text-orange-400">
+                                {version.extremePositions.weakADXCount}
+                              </div>
+                            </div>
+
+                            <div className="bg-gray-800/50 rounded p-2">
+                              <div className="text-xs text-gray-500">Win Rate</div>
+                              <div className={`text-sm font-semibold ${version.extremePositions.winRate >= 50 ? 'text-green-400' : 'text-red-400'}`}>
+                                {version.extremePositions.winRate}%
+                              </div>
+                            </div>
+
+                            <div className="bg-gray-800/50 rounded p-2">
+                              <div className="text-xs text-gray-500">Avg P&L</div>
+                              <div className={`text-sm font-semibold ${version.extremePositions.avgPnL >= 0 ? 'text-green-400' : 'text-red-400'}`}>
+                                {version.extremePositions.avgPnL >= 0 ? '+' : ''}${version.extremePositions.avgPnL.toFixed(2)}
+                              </div>
+                            </div>
+                          </div>
+                        </div>
+                      )}
+
+                      {/* Data Collection Notice for v3 */}
+                      {isCurrentVersion && version.tradeCount < 20 && (
+                        <div className="mt-4 p-3 bg-yellow-900/20 rounded-lg border border-yellow-500/30">
+                          <div className="flex items-start space-x-2">
+                            <span className="text-yellow-500 text-sm">📊</span>
+                            <p className="text-xs text-yellow-300/80 leading-relaxed">
+                              <strong>Data Collection Phase:</strong> Need {20 - version.tradeCount} more trades 
+                              before v3 performance can be reliably evaluated. This version is designed to prevent 
+                              losses from extreme position entries with weak trends (ADX &lt; 18).
+                            </p>
+                          </div>
+                        </div>
+                      )}
+                    </div>
+                  )
+                })}
+              </div>
+
+              {/* Legend */}
+              <div className="mt-6 pt-6 border-t border-gray-600/50">
+                <div className="text-xs text-gray-400 space-y-1">
+                  <div><strong className="text-gray-300">MFE (Max Favorable Excursion):</strong> Best profit % reached during trade lifetime</div>
+                  <div><strong className="text-gray-300">MAE (Max Adverse Excursion):</strong> Worst loss % reached during trade lifetime</div>
+                  <div><strong className="text-gray-300">Extreme Positions:</strong> Trades entered at price range extremes (&lt; 15% or &gt; 85%)</div>
+                  <div><strong className="text-gray-300">Weak ADX:</strong> Trend strength below 18 (indicates sideways/choppy market)</div>
+                </div>
+              </div>
+            </div>
+          </div>
+        )}
+
         {/* Last Trade Details */}
         {lastTrade && (
           <div className="mb-8">

app/api/analytics/version-comparison/route.ts

@@ -0,0 +1,139 @@
+/**
+ * Trading Bot v4 - Signal Quality Version Comparison API
+ * 
+ * Returns performance metrics comparing different signal quality scoring versions
+ */
+
+import { NextResponse } from 'next/server'
+import { getPrismaClient } from '@/lib/database/trades'
+
+export const dynamic = 'force-dynamic'
+
+interface VersionStats {
+  version: string
+  tradeCount: number
+  winRate: number
+  totalPnL: number
+  avgPnL: number
+  avgQualityScore: number | null
+  avgMFE: number | null
+  avgMAE: number | null
+  extremePositions: {
+    count: number
+    avgADX: number | null
+    weakADXCount: number
+    winRate: number
+    avgPnL: number
+  }
+}
+
+export async function GET() {
+  try {
+    const prisma = getPrismaClient()
+
+    // Get overall stats by version
+    const versionStats = await prisma.$queryRaw<Array<{
+      version: string | null
+      trades: bigint
+      wins: bigint
+      total_pnl: number
+      avg_pnl: number
+      avg_quality_score: number | null
+      avg_mfe: number | null
+      avg_mae: number | null
+    }>>`
+      SELECT 
+        COALESCE("signalQualityVersion", 'v1') as version,
+        COUNT(*) as trades,
+        SUM(CASE WHEN "realizedPnL" > 0 THEN 1 ELSE 0 END) as wins,
+        ROUND(SUM("realizedPnL")::numeric, 2) as total_pnl,
+        ROUND(AVG("realizedPnL")::numeric, 2) as avg_pnl,
+        ROUND(AVG("signalQualityScore")::numeric, 1) as avg_quality_score,
+        ROUND(AVG("maxFavorableExcursion")::numeric, 2) as avg_mfe,
+        ROUND(AVG("maxAdverseExcursion")::numeric, 2) as avg_mae
+      FROM "Trade"
+      WHERE "exitReason" IS NOT NULL 
+        AND "exitReason" NOT LIKE '%CLEANUP%'
+        AND "isTestTrade" = false
+      GROUP BY "signalQualityVersion"
+      ORDER BY version DESC
+    `
+
+    // Get extreme position stats by version (< 15% or > 85%)
+    const extremePositionStats = await prisma.$queryRaw<Array<{
+      version: string | null
+      count: bigint
+      avg_adx: number | null
+      weak_adx_count: bigint
+      wins: bigint
+      avg_pnl: number
+    }>>`
+      SELECT 
+        COALESCE("signalQualityVersion", 'v1') as version,
+        COUNT(*) as count,
+        ROUND(AVG("adxAtEntry")::numeric, 1) as avg_adx,
+        COUNT(*) FILTER (WHERE "adxAtEntry" < 18) as weak_adx_count,
+        SUM(CASE WHEN "realizedPnL" > 0 THEN 1 ELSE 0 END) as wins,
+        ROUND(AVG("realizedPnL")::numeric, 2) as avg_pnl
+      FROM "Trade"
+      WHERE "exitReason" IS NOT NULL 
+        AND "exitReason" NOT LIKE '%CLEANUP%'
+        AND "isTestTrade" = false
+        AND "pricePositionAtEntry" IS NOT NULL
+        AND ("pricePositionAtEntry" < 15 OR "pricePositionAtEntry" > 85)
+      GROUP BY "signalQualityVersion"
+      ORDER BY version DESC
+    `
+
+    // Build combined results
+    const results: VersionStats[] = versionStats.map(stat => {
+      const extremeStats = extremePositionStats.find(e => 
+        (e.version || 'v1') === (stat.version || 'v1')
+      )
+
+      const trades = Number(stat.trades)
+      const wins = Number(stat.wins)
+      const extremeCount = extremeStats ? Number(extremeStats.count) : 0
+      const extremeWins = extremeStats ? Number(extremeStats.wins) : 0
+
+      return {
+        version: stat.version || 'v1',
+        tradeCount: trades,
+        winRate: trades > 0 ? Math.round((wins / trades) * 100 * 10) / 10 : 0,
+        totalPnL: stat.total_pnl,
+        avgPnL: stat.avg_pnl,
+        avgQualityScore: stat.avg_quality_score,
+        avgMFE: stat.avg_mfe,
+        avgMAE: stat.avg_mae,
+        extremePositions: {
+          count: extremeCount,
+          avgADX: extremeStats?.avg_adx || null,
+          weakADXCount: extremeStats ? Number(extremeStats.weak_adx_count) : 0,
+          winRate: extremeCount > 0 ? Math.round((extremeWins / extremeCount) * 100 * 10) / 10 : 0,
+          avgPnL: extremeStats?.avg_pnl || 0,
+        }
+      }
+    })
+
+    // Get version descriptions
+    const versionDescriptions: Record<string, string> = {
+      'v1': 'Original logic (price < 5% threshold)',
+      'v2': 'Added volume compensation for low ADX',
+      'v3': 'Stricter: ADX > 18 required for positions < 15%'
+    }
+
+    return NextResponse.json({
+      success: true,
+      versions: results,
+      descriptions: versionDescriptions,
+      timestamp: new Date().toISOString()
+    })
+
+  } catch (error) {
+    console.error('❌ Failed to fetch version comparison:', error)
+    return NextResponse.json(
+      { success: false, error: 'Failed to fetch version comparison data' },
+      { status: 500 }
+    )
+  }
+}