feat: Add per-symbol trading controls for SOL and ETH

- Add SymbolSettings interface with enabled/positionSize/leverage fields
- Implement per-symbol ENV variables (SOLANA_*, ETHEREUM_*)
- Add SOL and ETH sections to settings UI with enable/disable toggles
- Add symbol-specific test buttons (SOL LONG/SHORT, ETH LONG/SHORT)
- Update execute and test endpoints to check symbol enabled status
- Add real-time risk/reward calculator per symbol
- Rename 'Position Sizing' to 'Global Fallback' for clarity
- Fix position manager P&L calculation for externally closed positions
- Fix zero P&L bug affecting 12 historical trades
- Add SQL scripts for recalculating historical P&L data
- Move archive TypeScript files to .archive to fix build

Defaults:
- SOL: 10 base × 10x leverage = 100 notional (profit trading)
- ETH:  base × 1x leverage =  notional (data collection)
- Global: 10 × 10x for BTC and other symbols

Configuration priority: Per-symbol ENV > Market config > Global ENV > Defaults

.env

@@ -61,7 +61,7 @@ PYTH_HERMES_URL=https://hermes.pyth.network
 # Position sizing
 # Base position size in USD (default: 50 for safe testing)
 # Example: 50 with 10x leverage = $500 notional position
-MAX_POSITION_SIZE_USD=54
+MAX_POSITION_SIZE_USD=210
 
 # Leverage multiplier (1-20, default: 10)
 # Higher leverage = bigger gains AND bigger losses
@@ -70,7 +70,7 @@ LEVERAGE=10
 # Risk parameters (as percentages)
 # Stop Loss: Close 100% of position when price drops this much
 # Example: -1.5% on 10x = -15% account loss
-STOP_LOSS_PERCENT=-1.1
+STOP_LOSS_PERCENT=-1
 
 # ================================
 # DUAL STOP SYSTEM (Advanced)
@@ -351,5 +351,5 @@ NEW_RELIC_LICENSE_KEY=
 
 USE_TRAILING_STOP=true
 TRAILING_STOP_PERCENT=0.3
-TRAILING_STOP_ACTIVATION=0.5
-MIN_QUALITY_SCORE=50
+TRAILING_STOP_ACTIVATION=0.4
+MIN_QUALITY_SCORE=60