feat: Flusso completo discovery parallelo per 2 inverter

FLUSSO IMPLEMENTATO:
1. All'avvio: registra discovery topics per 2 inverter (hardcoded)
2. Discovery topics ripetuti ogni 5 minuti (invece di 10)
3. Parallel discovery parametri con retry:
   - Tenta discovery fino a 3 volte
   - Se fallisce: attende 5s e riprova
   - Se tutti i tentativi falliscono: assume 2 inverter
4. Estrazione dati ogni 30s per entrambi gli inverter

NAMING:
- Inverter 1: voltronic_inv1_*
- Inverter 2: voltronic_inv2_*

Discovery topics include tutti i 33 parametri per entrambi gli inverter

sources/inverter-mqtt/entrypoint.sh

@@ -236,7 +236,7 @@ fi
 
 echo ""
 echo "=== Starting MQTT Bridge Services ==="
-echo "Using parallel inverter mode"
+echo "Using parallel inverter mode (2 inverters)"
 echo ""
 
 # Wait a bit for the device to be ready
@@ -246,10 +246,10 @@ sleep 2
 MQTT_PUSH_SCRIPT="/opt/inverter-mqtt/mqtt-push-parallel.sh"
 MQTT_INIT_SCRIPT="/opt/inverter-mqtt/mqtt-init-parallel.sh"
 
-# Init the mqtt server for the first time, then every 10 minutes (600 seconds)
+# Init the mqtt server for the first time, then every 5 minutes (300 seconds)
 # This will re-create the auto-created topics in the MQTT server if HA is restarted...
-echo "Starting MQTT initialization service (every 10 minutes)..."
-watch -n 600 "$MQTT_INIT_SCRIPT" > /dev/null 2>&1 &
+echo "Starting MQTT initialization service (every 5 minutes)..."
+watch -n 300 "$MQTT_INIT_SCRIPT" > /dev/null 2>&1 &
 
 # Run the MQTT Subscriber process in the background (so that way we can change the configuration on the inverter from home assistant)
 echo "Starting MQTT subscriber for commands..."

sources/inverter-mqtt/mqtt-init-parallel.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# MQTT Discovery for Parallel Inverters (simple style)
+# MQTT Discovery for 2 Parallel Inverters (hardcoded)
 
 MQTT_SERVER=`cat /etc/inverter/mqtt.json | jq '.server' -r`
 MQTT_PORT=`cat /etc/inverter/mqtt.json | jq '.port' -r`
@@ -47,23 +47,13 @@ registerInverterRawCMD () {
         }"
 }
 
-# Discover parallel inverters (no timeout, always try)
-PARALLEL_DISCOVERY=`/opt/inverter-cli/bin/inverter_poller -p 2>&1`
-PARALLEL_COUNT=`echo "$PARALLEL_DISCOVERY" | grep "PARALLEL_COUNT=" | cut -d= -f2`
+# Always register for 2 inverters (hardcoded)
+INVERTER_COUNT=2
 
-echo "Parallel discovery result: count=$PARALLEL_COUNT"
+echo "Registering discovery topics for $INVERTER_COUNT inverters..."
 
-# If no parallel inverters found, assume 2 as default
-if [ -z "$PARALLEL_COUNT" ] || [ "$PARALLEL_COUNT" -eq 0 ]; then
-    echo "⚠ No parallel count detected, assuming 2 inverters"
-    PARALLEL_COUNT=2
-fi
-
-echo "Registering discovery for $PARALLEL_COUNT inverters"
-
-# Register topics for each inverter discovered
-for inv_id in $(seq 1 $PARALLEL_COUNT); do
-    echo "Registering discovery topics for inverter #$inv_id..."
+for inv_id in $(seq 1 $INVERTER_COUNT); do
+    echo "  Inverter #$inv_id..."
     
     registerTopic $inv_id "serial" "" "identifier"
     registerTopic $inv_id "Inverter_mode" "" "solar-power"
@@ -99,8 +89,7 @@ for inv_id in $(seq 1 $PARALLEL_COUNT); do
     registerTopic $inv_id "Charger_source_priority" "" "solar-power"
     registerTopic $inv_id "Battery_redischarge_voltage" "V" "battery-negative"
     
-    # Raw command topic
     registerInverterRawCMD $inv_id
 done
 
-echo "✓ All discovery topics registered for $PARALLEL_COUNT inverters"
+echo "✓ Discovery topics registered for $INVERTER_COUNT inverters"

sources/inverter-mqtt/mqtt-push-parallel.sh

@@ -68,20 +68,37 @@ pushInfluxData () {
     curl -i -XPOST "$INFLUX_HOST/write?db=$INFLUX_DATABASE&precision=s" -u "$INFLUX_USERNAME:$INFLUX_PASSWORD" --data-binary "$INFLUX_PREFIX,device=${INFLUX_DEVICE}_inv${1} $INFLUX_MEASUREMENT_NAME=$3" > /dev/null 2>&1
 }
 
-# Discover parallel inverters
+# Discover parallel inverters with retry logic
 SUDO_CMD=""
 if [ "$EUID" -ne 0 ] && [ -c "/dev/ttyUSB0" ]; then
     SUDO_CMD="sudo"
 fi
 
-PARALLEL_DISCOVERY=`$SUDO_CMD "$INVERTER_BIN" -p 2>&1`
-PARALLEL_COUNT=`echo "$PARALLEL_DISCOVERY" | grep "PARALLEL_COUNT=" | cut -d= -f2`
+# Try parallel discovery with retry
+MAX_RETRIES=3
+RETRY_DELAY=5
+PARALLEL_COUNT=0
 
-echo "Parallel discovery: count=$PARALLEL_COUNT"
+for attempt in $(seq 1 $MAX_RETRIES); do
+    echo "Parallel discovery attempt $attempt/$MAX_RETRIES..."
+    PARALLEL_DISCOVERY=`$SUDO_CMD "$INVERTER_BIN" -p 2>&1`
+    PARALLEL_COUNT=`echo "$PARALLEL_DISCOVERY" | grep "PARALLEL_COUNT=" | cut -d= -f2`
     
-# If no parallel count detected, assume 2 inverters
+    if [ ! -z "$PARALLEL_COUNT" ] && [ "$PARALLEL_COUNT" -gt 0 ]; then
+        echo "✓ Found $PARALLEL_COUNT inverters"
+        break
+    else
+        echo "⚠ Discovery failed (count=$PARALLEL_COUNT)"
+        if [ $attempt -lt $MAX_RETRIES ]; then
+            echo "  Waiting ${RETRY_DELAY}s before retry..."
+            sleep $RETRY_DELAY
+        fi
+    fi
+done
+
+# If still no count, assume 2 inverters
 if [ -z "$PARALLEL_COUNT" ] || [ "$PARALLEL_COUNT" -eq 0 ]; then
-    echo "⚠ No parallel count detected, assuming 2 inverters"
+    echo "⚠ All discovery attempts failed, assuming 2 inverters"
     PARALLEL_COUNT=2
 fi