Fix: SurrealDB v2 compatible record IDs for trade history

lib/paper/engine.js

@@ -51,6 +51,34 @@ export class PaperEngine {
     return this.accounts.get(strategyName);
   }
 
+  /**
+   * Generate a short unique ID safe for SurrealDB v2 record keys.
+   * Avoids colons so we control the full `table:id` format ourselves.
+   */
+  _genId() {
+    return `pt_${Date.now()}_${Math.random().toString(36).slice(2, 8)}`;
+  }
+
+  /**
+   * Extract the raw record key from a SurrealDB id.
+   * e.g. "paper_positions:pt_123_abc" -> "pt_123_abc"
+   *      "pt_123_abc" -> "pt_123_abc"
+   */
+  _rawId(id) {
+    if (!id) return id;
+    const str = typeof id === 'object' && id.id ? String(id.id) : String(id);
+    const idx = str.indexOf(':');
+    return idx >= 0 ? str.slice(idx + 1) : str;
+  }
+
+  /**
+   * Build the full `table:id` string for use in raw queries.
+   */
+  _recordId(id) {
+    const raw = this._rawId(id);
+    return raw.startsWith('paper_positions:') ? raw : `paper_positions:⟨${raw}⟩`;
+  }
+
   async init() {
     try {
       const states = await db.query('SELECT * FROM paper_strategy_state ORDER BY timestamp DESC');
@@ -96,11 +124,8 @@ export class PaperEngine {
       return null;
     }
 
-    // FIX: Pre-format the ID exactly as SurrealDB expects it to ensure perfect sync
-    const tradeId = `paper_positions:pt_${Date.now()}_${Math.random().toString(36).slice(2, 8)}`;
-    
     const trade = {
-      id: tradeId,
+      id: this._genId(),
       strategy: signal.strategy,
       ticker: signal.ticker,
       side: signal.side.toLowerCase(),
@@ -127,8 +152,7 @@ export class PaperEngine {
     acct.openPositions.set(trade.ticker, list);
 
     try {
-      // Force SurrealDB to use our exact record link ID
+      await db.create('paper_positions', trade);
-      await db.create(tradeId, trade);
       await this._saveState(acct);
     } catch (e) {
       console.error('[Paper] DB write error:', e.message);
@@ -176,7 +200,7 @@ export class PaperEngine {
         if (won) acct.wins++;
         else acct.losses++;
 
-        const recordId = pos.id.includes(':') ? pos.id : `paper_positions:${pos.id}`;
+        const recordId = this._recordId(pos.id);
 
         try {
           const updated = await db.query(
@@ -185,12 +209,13 @@ export class PaperEngine {
           );
           const rows = updated[0] || [];
           if (rows.length === 0) {
-            await db.create(recordId, { ...pos, id: recordId });
+            // Record vanished from DB — re-insert the full settled trade
+            await db.create('paper_positions', { ...pos, id: this._rawId(pos.id) });
           }
         } catch (e) {
           console.error('[Paper] Settle DB error:', e.message);
           try {
-            await db.create(recordId, { ...pos, id: recordId });
+            await db.create('paper_positions', { ...pos, id: this._rawId(pos.id) });
           } catch (e2) {
             console.error('[Paper] Settle DB fallback error:', e2.message);
           }
@@ -264,7 +289,7 @@ export class PaperEngine {
         acct.totalPnL -= pos.cost;
         acct.losses++;
 
-        const recordId = pos.id.includes(':') ? pos.id : `paper_positions:${pos.id}`;
+        const recordId = this._recordId(pos.id);
 
         try {
           const updated = await db.query(
@@ -273,7 +298,7 @@ export class PaperEngine {
           );
           const rows = updated[0] || [];
           if (rows.length === 0) {
-            await db.create(recordId, { ...pos, id: recordId });
+            await db.create('paper_positions', { ...pos, id: this._rawId(pos.id) });
           }
         } catch (e) {
           console.error('[Paper] Force-expire DB error:', e.message);
@@ -302,7 +327,7 @@ export class PaperEngine {
           pos.settleTime = Date.now();
 
           try {
-            const recordId = pos.id.includes(':') ? pos.id : `paper_positions:${pos.id}`;
+            const recordId = this._recordId(pos.id);
             await db.query(
               `UPDATE ${recordId} SET settled = true, result = $result, pnl = $pnl, settleTime = $settleTime`,
               { result: 'cancelled', pnl: 0, settleTime: pos.settleTime }