feat: add MAKER_MM_REENTRY_ENABLED config + fix float combined check

- MAKER_MM_REENTRY_ENABLED=false disables re-entry (one cycle per market)
- Fix floating point bug: 0.1+0.5=0.6000000000000001 caused "combined > max"
  loop when MAKER_MM_MAX_COMBINED=0.60 — now rounds combined to 4dp before compare

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

.env.example

@@ -92,6 +92,9 @@ MAKER_MM_POLL_INTERVAL=5
 # Delay between re-entry cycles within the same market (seconds)
 MAKER_MM_REENTRY_DELAY=30
 
+# Set to false to disable re-entry — bot places one order per market then waits for next
+MAKER_MM_REENTRY_ENABLED=true
+
 # Price range for maker rebate eligibility (both sides must be in range)
 # Polymarket rebates are earned on orders within ~30-70% range
 MAKER_MM_MIN_PRICE=0.30

src/config/index.js

@@ -96,6 +96,7 @@ const config = {
   makerMmEntryWindow: parseInt(process.env.MAKER_MM_ENTRY_WINDOW || '45', 10),  // max secs after open to enter
   makerMmPollInterval: parseInt(process.env.MAKER_MM_POLL_INTERVAL || process.env.MM_POLL_INTERVAL || '5', 10) * 1000,
   makerMmReentryDelay: parseInt(process.env.MAKER_MM_REENTRY_DELAY || '30', 10) * 1000, // ms delay between re-entry cycles
+  makerMmReentryEnabled: process.env.MAKER_MM_REENTRY_ENABLED !== 'false', // set false to disable re-entry (one cycle per market)
   makerMmRepriceThreshold: parseFloat(process.env.MAKER_MM_REPRICE_THRESHOLD || '0.02'), // reprice if bid drifts > this (default 2c)
   makerMmMinPrice: parseFloat(process.env.MAKER_MM_MIN_PRICE || '0.30'),   // min bid for rebate range (both sides)
   makerMmMaxPrice: parseFloat(process.env.MAKER_MM_MAX_PRICE || '0.69'),   // max bid for rebate range (both sides)

src/maker-mm-bot.js

@@ -182,7 +182,7 @@ async function runStrategy(market) {
         const secsLeft = Math.round(msRemaining / 1000);
         const minTimeForReentry = 180; // 3 minutes minimum
 
-        if (secsLeft > config.makerMmCutLossTime + minTimeForReentry) {
+        if (config.makerMmReentryEnabled && secsLeft > config.makerMmCutLossTime + minTimeForReentry) {
             // ── CURRENT MARKET: Check odds before re-entry ──────────────────────
             if (isCurrentMarket && config.currentMarketEnabled) {
                 const oddsValid = await isCurrentMarketOddsValidForReentry(

src/services/makerRebateExecutor.js

@@ -649,7 +649,7 @@ export async function executeMakerRebateStrategy(market) {
             continue;
         }
 
-        combined = yesBid + noBid;
+        combined = parseFloat((yesBid + noBid).toFixed(4));
 
         if (combined > config.makerMmMaxCombined) {
             logger.info(`MakerMM${tag}: combined $${combined.toFixed(4)} > max — waiting`);