fix: Use alert() function instead of alertcondition for dynamic JSON

Pine Script alertcondition() requires const string (no variables allowed)
Switched to alert() function which supports series string (dynamic values)

Changes:
- Removed alertcondition(), added if barstate.isconfirmed + alert()
- Build JSON message with all metrics dynamically
- alert.freq_once_per_bar ensures one alert per candle close
- Now includes all required fields: atr, adx, rsi, volumeRatio, pricePosition, maGap

Alert setup in TradingView:
1. Add indicator to 1-minute chart
2. Create alert on indicator
3. Condition: 'alert() function calls' (not alertcondition)
4. Frequency: Once Per Bar Close
5. Message: Use {{strategy.order.alert_message}} or leave blank

workflows/trading/moneyline_1min_data_feed.pinescript

@@ -3,7 +3,7 @@ indicator("Money Line - 1min Data Feed", overlay=false)
 
 // ==========================================
 // PURPOSE: Send market data every 1 minute
-// USAGE: Create alert with "Once Per Bar Close"
+// USAGE: Create alert on indicator with "alert() function calls"
 // WEBHOOK: https://flow.egonetix.de/webhook/tradingview-bot-v4
 // ==========================================
 
@@ -24,6 +24,22 @@ plot(adx, "ADX", color=color.blue, linewidth=2)
 hline(20, "ADX 20", color=color.gray, linestyle=hline.style_dashed)
 hline(25, "ADX 25", color=color.orange, linestyle=hline.style_dashed)
 
-// Alert condition: Every bar close (fires every 1 minute on 1-min chart)
-// Message must be const string - build JSON directly in alertcondition
-alertcondition(true, title="1min Data Feed", message='{"action":"market_data_1min","symbol":"{{ticker}}","timeframe":"1","atr":{{plot_0}},"adx":{{plot_1}},"rsi":' + str.tostring(rsi) + ',"volumeRatio":' + str.tostring(volumeRatio) + ',"pricePosition":' + str.tostring(pricePosition) + ',"currentPrice":{{close}},"maGap":' + str.tostring(maGap) + ',"indicatorVersion":"v9"}')
+// Build JSON message dynamically
+// alert() function allows series string (dynamic values)
+jsonMessage = '{"action":"market_data_1min"' + 
+    ',"symbol":"' + syminfo.ticker + '"' +
+    ',"timeframe":"1"' +
+    ',"atr":' + str.tostring(atr) + 
+    ',"adx":' + str.tostring(adx) + 
+    ',"rsi":' + str.tostring(rsi) + 
+    ',"volumeRatio":' + str.tostring(volumeRatio) + 
+    ',"pricePosition":' + str.tostring(pricePosition) + 
+    ',"currentPrice":' + str.tostring(close) + 
+    ',"maGap":' + str.tostring(maGap) + 
+    ',"timestamp":' + str.tostring(time) + 
+    ',"indicatorVersion":"v9"}'
+
+// Send alert every bar close
+// Use alert() instead of alertcondition() to allow dynamic message
+if barstate.isconfirmed
+    alert(jsonMessage, alert.freq_once_per_bar)