docs: update copilot-instructions for ATR trailing + dynamic runner% + rate limits

Updated .github/copilot-instructions.md to reflect recent system improvements:

**ATR-Based Trailing Stop:**
- Dynamic trailing calculation formula documented
- Configurable runner % (default 25%, adjustable via TAKE_PROFIT_1_SIZE_PERCENT)
- All UI displays now dynamically calculate runner% as 100 - TP1_SIZE
- Removed hardcoded '25%' references, replaced with dynamic language

**Rate Limit Monitoring:**
- NEW Section #4: Rate Limit Monitoring
- Exponential backoff mechanism (2s→4s→8s)
- Database logging (3 event types: hit/recovered/exhausted)
- Analytics endpoint for monitoring
- Links to RATE_LIMIT_MONITORING.md for SQL queries

**Section Renumbering:**
- Old Section #4 (Order Placement) → Section #5
- Old Section #5 (Database) → Section #6
- Maintains logical flow and consistency

**Updated References:**
- Exit Strategy: Dynamic runner% description
- Position Manager: ATR trailing formula + on-chain sync notes
- Common Pitfalls: Dynamic runner % configuration notes
- Roadmap: Phase 5 shows configurable runner with formula

All documentation now accurately reflects user's 70/30 TP1/Runner split
and recent infrastructure improvements (ATR trailing, rate limits).

Related: settings UI updated in previous commit (app/settings/page.tsx)

app/settings/page.tsx

@@ -205,7 +205,8 @@ export default function SettingsPage() {
     const maxLoss = size * lev * (Math.abs(settings.STOP_LOSS_PERCENT) / 100)
     // Calculate gains/losses for risk calculator
     const tp1Gain = size * lev * (settings.TAKE_PROFIT_1_PERCENT / 100) * (settings.TAKE_PROFIT_1_SIZE_PERCENT / 100)
-    const tp2RunnerSize = size * (1 - settings.TAKE_PROFIT_1_SIZE_PERCENT / 100) // 25% remaining after TP1
+    const tp2RunnerSize = size * (1 - settings.TAKE_PROFIT_1_SIZE_PERCENT / 100) // Remaining % after TP1
+    const runnerPercent = 100 - settings.TAKE_PROFIT_1_SIZE_PERCENT // Calculate runner % for display
     
     // Use ATR-based TP2 if enabled, otherwise use static
     const tp2Percent = settings.USE_ATR_BASED_TARGETS 
@@ -217,10 +218,10 @@ export default function SettingsPage() {
       ? settings.MAX_TP2_PERCENT 
       : settings.TAKE_PROFIT_2_PERCENT
     
-    const runnerValue = tp2RunnerSize * lev * (tp2CalcPercent / 100) // Full 25% runner value at TP2
+    const runnerValue = tp2RunnerSize * lev * (tp2CalcPercent / 100) // Runner value at TP2
     const fullWin = tp1Gain + runnerValue
     
-    return { maxLoss, tp1Gain, runnerValue, fullWin, tp2Percent }
+    return { maxLoss, tp1Gain, runnerValue, fullWin, tp2Percent, runnerPercent }
   }
 
   if (loading) {
@@ -276,7 +277,7 @@ export default function SettingsPage() {
                 <div className="text-white text-2xl font-bold">+${risk.tp1Gain.toFixed(2)}</div>
               </div>
               <div className="bg-green-500/10 border border-green-500/50 rounded-lg p-4">
-                <div className="text-green-400 text-sm mb-1">Runner Value (25%)</div>
+                <div className="text-green-400 text-sm mb-1">Runner Value ({risk.runnerPercent}%)</div>
                 <div className="text-white text-2xl font-bold">+${risk.runnerValue.toFixed(2)}</div>
                 <div className="text-xs text-green-300 mt-1">{risk.tp2Percent}</div>
               </div>
@@ -594,11 +595,14 @@ export default function SettingsPage() {
           </Section>
 
           {/* Trailing Stop */}
-          <Section title="🏃 Trailing Stop (25% Runner)" description="TP2 activates trailing stop on full remaining 25%">
+          <Section 
+            title={`🏃 Trailing Stop (${100 - settings.TAKE_PROFIT_1_SIZE_PERCENT}% Runner)`} 
+            description={`TP2 activates trailing stop on full ${100 - settings.TAKE_PROFIT_1_SIZE_PERCENT}% remaining`}
+          >
             <div className="mb-4 p-3 bg-blue-500/10 border border-blue-500/30 rounded-lg">
               <p className="text-sm text-blue-400">
-                NEW SYSTEM: When TP2 price is hit, no position is closed. Instead, trailing stop activates on the full 25% remaining position for maximum runner potential.
-                This gives you a 5x larger runner (25% vs 5%) to capture extended moves.
+                NEW SYSTEM: When TP2 price is hit, no position is closed. Instead, trailing stop activates on the full {100 - settings.TAKE_PROFIT_1_SIZE_PERCENT}% remaining position for maximum runner potential.
+                Current split: {settings.TAKE_PROFIT_1_SIZE_PERCENT}% at TP1, {100 - settings.TAKE_PROFIT_1_SIZE_PERCENT}% becomes runner.
               </p>
             </div>
             <Setting
@@ -608,7 +612,7 @@ export default function SettingsPage() {
               min={0}
               max={1}
               step={1}
-              description="Enable trailing stop for 25% runner position when TP2 triggers. 0 = disabled, 1 = enabled."
+              description={`Enable trailing stop for ${100 - settings.TAKE_PROFIT_1_SIZE_PERCENT}% runner position when TP2 triggers. 0 = disabled, 1 = enabled.`}
             />
             <Setting
               label="Trailing Stop Distance (%) [FALLBACK]"
@@ -653,7 +657,7 @@ export default function SettingsPage() {
               min={0.1}
               max={5}
               step={0.1}
-              description="25% runner must reach this profit % before trailing stop activates. Prevents premature stops. Example: 0.5% = wait until runner is +0.5% profit."
+              description={`${100 - settings.TAKE_PROFIT_1_SIZE_PERCENT}% runner must reach this profit % before trailing stop activates. Prevents premature stops. Example: 0.5% = wait until runner is +0.5% profit.`}
             />
           </Section>