Feat: Expose orderbook in getState for strategies

lib/market/tracker.js

@@ -102,7 +102,12 @@ export class MarketTracker extends EventEmitter {
       closeTime: this.marketData.close_time || this.marketData.expiration_time,
       status: this.marketData.status,
       result: this.marketData.result,
-      timestamp: Date.now()
+      timestamp: Date.now(),
+      // Expose raw orderbook for strategies and live engine
+      orderbook: {
+        yes: this.orderbook.yes,
+        no: this.orderbook.no
+      }
     };
   }
 
@@ -133,14 +138,12 @@ export class MarketTracker extends EventEmitter {
       return null;
     };
 
-    // Try cents first (from REST API), then dollar-string fields (from WS ticker)
     let yesBid = pick('yes_bid', 'yesBid');
     let yesAsk = pick('yes_ask', 'yesAsk');
     let noBid = pick('no_bid', 'noBid');
     let noAsk = pick('no_ask', 'noAsk');
     let lastPrice = pick('last_price', 'lastPrice', 'yes_price', 'yesPrice');
 
-    // WS ticker sends dollar strings — convert to cents
     if (yesBid == null) yesBid = dollarsToCents(market?.yes_bid_dollars);
     if (yesAsk == null) yesAsk = dollarsToCents(market?.yes_ask_dollars);
     if (noBid == null) noBid = dollarsToCents(market?.no_bid_dollars);
@@ -159,12 +162,9 @@ export class MarketTracker extends EventEmitter {
       let qty = null;
 
       if (Array.isArray(level)) {
-        // New API format: ["0.4200", "300.00"] (dollar strings)
-        // Or old format: [42, 300] (cents integers)
         const rawPrice = level[0];
         const rawQty = level[1];
 
-        // Detect dollar-string format (contains a decimal point and is < 1.01)
         if (typeof rawPrice === 'string' && rawPrice.includes('.')) {
           price = dollarsToCents(rawPrice);
           qty = this._num(rawQty);
@@ -173,7 +173,6 @@ export class MarketTracker extends EventEmitter {
           qty = this._num(rawQty);
         }
       } else if (level && typeof level === 'object') {
-        // Object format
         const rawPrice = level.price ?? level.price_dollars ?? level[0];
         const rawQty = level.qty ?? level.quantity ?? level.size ?? level.count ?? level[1];
 
@@ -195,7 +194,6 @@ export class MarketTracker extends EventEmitter {
   _normalizeOrderbook(book) {
     const root = book?.orderbook && typeof book.orderbook === 'object' ? book.orderbook : book;
     return {
-      // Support both old fields (yes/no) and new fields (yes_dollars_fp/no_dollars_fp)
       yes: this._normalizeBookSide(root?.yes ?? root?.yes_dollars_fp ?? root?.yes_dollars),
       no: this._normalizeBookSide(root?.no ?? root?.no_dollars_fp ?? root?.no_dollars)
     };
@@ -360,13 +358,11 @@ export class MarketTracker extends EventEmitter {
     if (msg.market_ticker !== this.currentTicker) return;
 
     if (msg.type === 'orderbook_snapshot') {
-      // New format: yes_dollars_fp / no_dollars_fp
       this.orderbook = this._normalizeOrderbook(msg);
       console.log(`[Tracker] Orderbook snapshot: ${this.orderbook.yes.length} yes levels, ${this.orderbook.no.length} no levels`);
     } else if (msg.type === 'orderbook_delta') {
       const side = String(msg.side || '').toLowerCase();
 
-      // New format uses price_dollars + delta_fp
       let price = this._num(msg.price);
       if (price == null) price = dollarsToCents(msg.price_dollars);
 
@@ -387,7 +383,6 @@ export class MarketTracker extends EventEmitter {
 
         this.orderbook[side] = [...map.entries()].sort((a, b) => b[0] - a[0]);
       } else {
-        // Batch delta arrays (old format fallback)
         const yesArr = msg.yes ?? msg.yes_dollars_fp;
         const noArr = msg.no ?? msg.no_dollars_fp;
         if (Array.isArray(yesArr)) this.orderbook.yes = this._applyDelta(this.orderbook.yes, yesArr);
@@ -402,7 +397,6 @@ export class MarketTracker extends EventEmitter {
     if (msg.market_ticker !== this.currentTicker) return;
 
     if (this.marketData) {
-      // New API sends dollar-string fields; store them for _extractMarketQuotes
       const fields = [
         'yes_bid', 'yes_ask', 'no_bid', 'no_ask', 'last_price', 'volume',
         'yes_bid_dollars', 'yes_ask_dollars', 'no_bid_dollars', 'no_ask_dollars',
@@ -414,7 +408,6 @@ export class MarketTracker extends EventEmitter {
         if (msg[key] != null) this.marketData[key] = msg[key];
       }
 
-      // Also map dollar_volume / dollar_open_interest to standard fields
       if (msg.dollar_volume != null) this.marketData.volume = this._num(msg.dollar_volume) ?? this.marketData.volume;
       if (msg.dollar_open_interest != null) this.marketData.open_interest = this._num(msg.dollar_open_interest) ?? this.marketData.open_interest;
       if (msg.volume_fp != null && this.marketData.volume == null) this.marketData.volume = this._num(msg.volume_fp);