feat: Add customizable TP size percentages and fix settings save

**New Features:**
- Added TAKE_PROFIT_1_SIZE_PERCENT (default: 50%)
- Added TAKE_PROFIT_2_SIZE_PERCENT (default: 50%)
- Users can now control WHAT % to close at each TP level
- Risk calculator now shows actual TP sizes dynamically

**Bug Fixes:**
- Fixed settings save failure by mounting .env file to container
- Added .env volume mount in docker-compose.yml
- Fixed permission issues (.env must be chmod 666)

**UI Changes:**
- Split TP controls into Price % and Size %
- TP1 Price: When to exit first partial
- TP1 Size: What % of position to close (1-100%)
- TP2 Price: When to exit second partial
- TP2 Size: What % of remaining to close (1-100%)
- Risk calculator displays dynamic percentages

**Example:**
- TP1 at +1% price, close 60% of position
- TP2 at +2% price, close 40% of remaining (24% of original)
- Total exit: 84% of position at TP levels

.env

@@ -61,55 +61,63 @@ 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=50
+MAX_POSITION_SIZE_USD=75
 
 # Leverage multiplier (1-20, default: 10)
 # Higher leverage = bigger gains AND bigger losses
-LEVERAGE=5
+LEVERAGE=8
 
 # 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=-1.5
+STOP_LOSS_PERCENT=-2
 
 # Take Profit 1: Close 50% of position at this profit level
 # Example: +0.7% on 10x = +7% account gain
-TAKE_PROFIT_1_PERCENT=0.7
+TAKE_PROFIT_1_PERCENT=1
+
+# Take Profit 1 Size: What % of position to close at TP1
+# Example: 50 = close 50% of position
+TAKE_PROFIT_1_SIZE_PERCENT=60
 
 # Take Profit 2: Close remaining 50% at this profit level
 # Example: +1.5% on 10x = +15% account gain
-TAKE_PROFIT_2_PERCENT=1.5
+TAKE_PROFIT_2_PERCENT=2
+
+# Take Profit 2 Size: What % of remaining position to close at TP2
+# Example: 100 = close all remaining position
+TAKE_PROFIT_2_SIZE_PERCENT=40
 
 # Emergency Stop: Hard stop if this level is breached
 # Example: -2.0% on 10x = -20% account loss (rare but protects from flash crashes)
-EMERGENCY_STOP_PERCENT=-2.0
+EMERGENCY_STOP_PERCENT=-3
 
 # Dynamic stop-loss adjustments
 # Move SL to breakeven when profit reaches this level
-BREAKEVEN_TRIGGER_PERCENT=0.4
+BREAKEVEN_TRIGGER_PERCENT=0.5
 
 # Lock in profit when price reaches this level
-PROFIT_LOCK_TRIGGER_PERCENT=1.0
+PROFIT_LOCK_TRIGGER_PERCENT=1.2
 
 # How much profit to lock (move SL to this profit level)
-PROFIT_LOCK_PERCENT=0.4
+PROFIT_LOCK_PERCENT=0.5
 
 # Risk limits
 # Stop trading if daily loss exceeds this amount (USD)
 # Example: -150 = stop trading after losing $150 in a day
-MAX_DAILY_DRAWDOWN=-50
+MAX_DAILY_DRAWDOWN=-100
 
 # Maximum number of trades allowed per hour (prevents overtrading)
-MAX_TRADES_PER_HOUR=6
+MAX_TRADES_PER_HOUR=8
 
 # Minimum time between trades in seconds (cooldown period)
 # Example: 600 = 10 minutes between trades
-MIN_TIME_BETWEEN_TRADES=600
+MIN_TIME_BETWEEN_TRADES=300
 
 # DEX execution settings
 # Maximum acceptable slippage on market orders (percentage)
 # Example: 1.0 = accept up to 1% slippage
-SLIPPAGE_TOLERANCE=1.0
+SLIPPAGE_TOLERANCE=1.5
 
 # How often to check prices (milliseconds)
 # Example: 2000 = check every 2 seconds
@@ -229,7 +237,7 @@ DEBUG=drift:*,pyth:*,trading:*
 
 # Enable dry run mode (simulate trades without executing)
 # Set to 'true' for testing without real money
-DRY_RUN=false
+DRY_RUN=true
 
 # API server port (default: 3000)
 PORT=3000