fix: FR/Liq scoring bugs + compact UI

Backend:
- FR threshold: 0.001→0.0003 (extreme), 0.0003→0.00005 (moderate)
- Liquidation SQL: side='SELL'/'BUY' → 'LONG'/'SHORT' (was never matching!)

Frontend:
- FR/Liq scores now inline in score column (compact)
- Removed bulky green badge buttons from position cards

backend/signal_engine.py

@@ -367,8 +367,8 @@ class SymbolState:
                 cur.execute(
                     """
                     SELECT
-                        COALESCE(SUM(CASE WHEN side='SELL' THEN usd_value ELSE 0 END), 0) as long_liq,
+                        COALESCE(SUM(CASE WHEN side='LONG' THEN usd_value ELSE 0 END), 0) as long_liq,
-                        COALESCE(SUM(CASE WHEN side='BUY' THEN usd_value ELSE 0 END), 0) as short_liq
+                        COALESCE(SUM(CASE WHEN side='SHORT' THEN usd_value ELSE 0 END), 0) as short_liq
                     FROM liquidations
                     WHERE symbol=%s AND trade_time >= %s
                     """,
@@ -494,15 +494,15 @@ class SymbolState:
         fr_score = 0
         if "funding_rate" in enabled_signals and funding_rate is not None:
             fr_abs = abs(funding_rate)
-            if fr_abs >= 0.001:  # extreme ±0.1%
+            if fr_abs >= 0.0003:  # extreme ±0.03% — 很高的FR，逆向减分
-                # Extreme: penalize if going WITH the crowd
+                # 做多但FR极高（多头拥挤）= 危险，减分
-                if (direction == "LONG" and funding_rate > 0.001) or (direction == "SHORT" and funding_rate < -0.001):
+                if (direction == "LONG" and funding_rate > 0) or (direction == "SHORT" and funding_rate < 0):
                     fr_score = -5
                 else:
-                    fr_score = 5
+                    fr_score = 5  # 反向操作，加分
-            elif fr_abs >= 0.0003:  # moderate ±0.03%
+            elif fr_abs >= 0.00005:  # moderate ±0.005% — 轻度偏移，顺向加分
-                # Moderate: reward going AGAINST the crowd
+                # 做多且FR为负（空头付钱给多头）= 顺势，加分
-                if (direction == "LONG" and funding_rate < -0.0003) or (direction == "SHORT" and funding_rate > 0.0003):
+                if (direction == "LONG" and funding_rate < 0) or (direction == "SHORT" and funding_rate > 0):
                     fr_score = 5
                 else:
                     fr_score = 0

frontend/app/paper/page.tsx

@@ -346,8 +346,7 @@ function ActivePositions({ strategy }: { strategy: StrategyFilter }) {
               </div>
               {isV52 && (
                 <div className="mt-1 grid grid-cols-2 gap-2 text-[10px] font-semibold">
-                  <div className="rounded-md bg-emerald-100/70 text-emerald-800 px-2 py-1">✨ Funding Rate Score: {frScore >= 0 ? "+" : ""}{frScore}</div>
+                  {isV52 && <div className="text-[10px] text-emerald-600 mt-0.5">FR {frScore >= 0 ? "+" : ""}{frScore} · Liq {liqScore >= 0 ? "+" : ""}{liqScore}</div>}
-                  <div className="rounded-md bg-cyan-100/70 text-cyan-800 px-2 py-1">✨ Liquidation Score: {liqScore >= 0 ? "+" : ""}{liqScore}</div>
                 </div>
               )}
             </div>
@@ -525,10 +524,7 @@ function TradeHistory({ strategy }: { strategy: StrategyFilter }) {
                       </span>
                     </td>
                     <td className="px-2 py-1.5 text-right font-mono">
-                      <div>{t.score}</div>
+                      <div>{t.score}{isV52 && (frScore !== 0 || liqScore !== 0) ? <span className="text-emerald-600 text-[9px] ml-0.5">({frScore > 0 ? "+" : ""}{frScore}/{liqScore > 0 ? "+" : ""}{liqScore})</span> : ""}</div>
-                      <div className={`text-[9px] ${isV52 ? "text-emerald-600 font-semibold" : "text-slate-400"}`}>
-                        {isV52 ? `✨ FR ${frScore >= 0 ? "+" : ""}${frScore} · Liq ${liqScore >= 0 ? "+" : ""}${liqScore}` : "FR/Liq 仅V5.2"}
-                      </div>
                     </td>
                     <td className="px-2 py-1.5 text-right text-slate-400">{holdMin}m</td>
                   </tr>

signal-engine.log

@@ -0,0 +1,11 @@
+2026-03-01 23:06:35,118 [INFO] signal-engine: 已加载策略配置: v51_baseline, v52_8signals
+2026-03-01 23:06:37,990 [INFO] signal-engine: [BTCUSDT] 冷启动完成: 加载425,636条历史数据 (窗口=4h)
+2026-03-01 23:06:41,185 [INFO] signal-engine: [ETHUSDT] 冷启动完成: 加载474,707条历史数据 (窗口=4h)
+2026-03-01 23:06:41,583 [INFO] signal-engine: [XRPUSDT] 冷启动完成: 加载63,246条历史数据 (窗口=4h)
+2026-03-01 23:06:42,041 [INFO] signal-engine: [SOLUSDT] 冷启动完成: 加载70,472条历史数据 (窗口=4h)
+2026-03-01 23:06:42,041 [INFO] signal-engine: === Signal Engine (PG) 启动完成 ===
+2026-03-01 23:06:42,270 [INFO] signal-engine: [BTCUSDT] 🚨 信号[v51_baseline]: LONG score=90 price=65362.8
+2026-03-01 23:06:42,270 [INFO] signal-engine: [BTCUSDT] 🚨 信号[v52_8signals]: LONG score=90 price=65362.8
+2026-03-01 23:06:42,726 [INFO] signal-engine: [SOLUSDT] 🚨 信号[v51_baseline]: LONG score=92 price=82.8
+2026-03-01 23:06:42,726 [INFO] signal-engine: [SOLUSDT] 🚨 信号[v52_8signals]: LONG score=92 price=82.8
+2026-03-01 23:07:14,105 [INFO] signal-engine: 冷启动保护期结束，模拟盘开仓已启用