feat: MM adaptive cut-loss with profit floor

When one leg fills, instead of immediately market-selling the unfilled
leg, enter a continuous monitoring loop that:
- Places a limit sell only when price >= minAdaptivePrice floor
  (floor = mmAdaptiveMinCombined - filledLegPrice, default combined 1.20)
- Chases price upward (>2% improvement → re-place limit higher)
- Cancels limit on dip >5% or below floor, then waits for recovery
- Market-sells only as last resort when CL time is reached

New config: MM_ADAPTIVE_CL (toggle), MM_ADAPTIVE_MIN_COMBINED (floor),
MM_ADAPTIVE_MONITOR_SEC (poll interval). Legacy immediate market-sell
path preserved when MM_ADAPTIVE_CL=false.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/config/index.js

@@ -56,6 +56,9 @@ const config = {
   mmMarketKeyword: process.env.MM_MARKET_KEYWORD            || 'Bitcoin Up or Down',
   mmEntryWindow:   parseInt(  process.env.MM_ENTRY_WINDOW   || '45', 10), // max secs after open
   mmPollInterval:  parseInt(  process.env.MM_POLL_INTERVAL  || '10', 10) * 1000,
+  mmAdaptiveCL:            process.env.MM_ADAPTIVE_CL !== 'false',           // true = adaptive, false = legacy immediate market-sell
+  mmAdaptiveMinCombined:   parseFloat(process.env.MM_ADAPTIVE_MIN_COMBINED || '1.20'), // min combined sell (both legs) to qualify for limit
+  mmAdaptiveMonitorSec:    parseInt(process.env.MM_ADAPTIVE_MONITOR_SEC || '5', 10),
 
   // ── Recovery Buy (after cut-loss) ─────────────────────────────
   // When enabled: after cutting loss, monitor prices for 10s and