fix: normalize ATR_max/ATR_min to pips — currently broken for all non-XAUUSD symbols

[cfournel]

Problem

ATR_max and ATR_min inputs compare against raw iATR() output in native price units. The default ATR_max=8.2 was calibrated for XAUUSD (M15 ATR ~3-8 USD). For every other symbol the filter is completely inert:

Symbol	M15 ATR range	ATR_max=8.2 effect
XAUUSD	3–8	✅ sometimes triggers
EURUSD	0.0005–0.0012	❌ never triggers
USDJPY	0.15–0.30	❌ never triggers
EURJPY	0.10–0.25	❌ never triggers
USDX	0.05–0.10	❌ never triggers

Confirmed by backtests: changing ATR_max from 8.2 → 0.3 → 0.5 on USDX produces identical results (same 6 trades, same 0% WR).

Code location: OBInclude/OrderProcess.mqh lines 78-83:

if(atr[0] > ATR_max)
   return false;
if(ATR_min > 0 && atr[0] < ATR_min)
   return false;

Fix

Normalize ATR to pips before comparison so one threshold works across all symbols:

// Normalize: atr in pips = raw_atr / (_Point * 10)
// Works for 2-digit (XAUUSD), 3-digit (USDJPY/USDX), 5-digit (EURUSD) symbols
double atr_pips = atr[0] / (_Point * 10.0);
if(ATR_max > 0 && atr_pips > ATR_max) return false;
if(ATR_min > 0 && atr_pips < ATR_min) return false;

Then update inputs and all set files to use pip-based values:

• ATR_max default: 80.0 (80 pips = ~$8 for XAUUSD ≈ current behavior)
• ATR_min default: 0.0 (off by default)

Impact

• Affects: EURUSD, GBPUSD, USDJPY, EURJPY, GBPJPY, AUDJPY, USDX — all symbols
• All forensics filter findings for ATR_min (Add ATR minimum filter — low volatility = weak performance #61) on non-XAUUSD symbols are invalid until this is fixed
• XAUUSD behavior unchanged (ATR_max=80 pips ≈ ATR_max=8.0 in price units)

[cfournel]

Fixed in f472c80. ATR filter now supports inpATR_MaxPct / inpATR_MinPct (percentage of bid price) for symbol-agnostic filtering. Legacy raw ATR_max/ATR_min still works when Pct inputs are 0. Added ENUM_REASON_ATR_TOO_HIGH reason tracking. Verified neutral: XAUUSD 14T/PF357, USDJPY 39T/PF1.63 unchanged.