feat: add long/short test trade buttons to settings page

- Split test trade button into separate LONG and SHORT buttons
- Update testTrade function to accept direction parameter
- Add confirmation dialog showing the specific direction
- Green button for LONG, red button for SHORT
- Success message includes executed direction

.env

@@ -70,7 +70,7 @@ LEVERAGE=5
 # 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=-2.0
+STOP_LOSS_PERCENT=-1.5
 
 # ================================
 # DUAL STOP SYSTEM (Advanced)
@@ -93,19 +93,19 @@ HARD_STOP_PERCENT=-2.5
 
 # Take Profit 1: Close 50% of position at this profit level
 # Example: +0.7% on 10x = +7% account gain
-TAKE_PROFIT_1_PERCENT=0.5
+TAKE_PROFIT_1_PERCENT=0.7
 
 # Take Profit 1 Size: What % of position to close at TP1
 # Example: 50 = close 50% of position
-TAKE_PROFIT_1_SIZE_PERCENT=75
+TAKE_PROFIT_1_SIZE_PERCENT=50
 
 # Take Profit 2: Close remaining 50% at this profit level
 # Example: +1.5% on 10x = +15% account gain
-TAKE_PROFIT_2_PERCENT=2.5
+TAKE_PROFIT_2_PERCENT=1.5
 
 # Take Profit 2 Size: What % of remaining position to close at TP2
 # Example: 100 = close all remaining position
-TAKE_PROFIT_2_SIZE_PERCENT=100
+TAKE_PROFIT_2_SIZE_PERCENT=50
 
 # Emergency Stop: Hard stop if this level is breached
 # Example: -2.0% on 10x = -20% account loss (rare but protects from flash crashes)
@@ -119,7 +119,7 @@ BREAKEVEN_TRIGGER_PERCENT=0.5
 PROFIT_LOCK_TRIGGER_PERCENT=1.2
 
 # How much profit to lock (move SL to this profit level)
-PROFIT_LOCK_PERCENT=0.5
+PROFIT_LOCK_PERCENT=0.2
 
 # Risk limits
 # Stop trading if daily loss exceeds this amount (USD)