feat: configurable price polling interval via MAKER_MM_POLL_SEC

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

.env.example

@@ -107,6 +107,10 @@ MAKER_MM_MAX_PRICE=0.69
 # Default false (symmetric maker behavior — wait for both sides)
 MAKER_MM_CANCEL_CHEAP_ON_EXP_FILL=false
 
+# Price polling interval (seconds) while waiting for entry conditions
+# Lower = more responsive but more API calls. Default: 3
+MAKER_MM_POLL_SEC=3
+
 # ── Current Market Entry (optional) ─────────────────────────────
 # Allow entering markets that are already in progress
 # Useful for catching mid-market opportunities

src/config/index.js

@@ -102,6 +102,7 @@ const config = {
   makerMmMaxPrice: parseFloat(process.env.MAKER_MM_MAX_PRICE || '0.69'),   // max bid for rebate range (both sides)
   // When true: if expensive side fills first, cancel cheap side and hold to redemption
   makerMmCancelCheapOnExpFill: process.env.MAKER_MM_CANCEL_CHEAP_ON_EXP_FILL === 'true',
+  makerMmPollSec: parseInt(process.env.MAKER_MM_POLL_SEC || '3', 10),
 
   // ── Current Market Settings ────────────────────────────────────
   // Enable trading on current active market (not just next market)

src/services/makerRebateExecutor.js

@@ -677,7 +677,7 @@ export async function executeMakerRebateStrategy(market) {
     logger.info(`MakerMM${tag}: ${sim}entering — ${label}`);
 
     // ── Wait for real YES price ─────────────────────────────────
-    const POLL_SEC = 3;
+    const POLL_SEC = config.makerMmPollSec;
     const ts = parseFloat(tickSize);
 
     let yesBid, noBid, combined;