++ Add Readme + Multiple S3 Configs

sync.sh

@@ -227,15 +227,37 @@ gotify_send() {
         return 0
     fi
 
-    # Invia la notifica in background per non bloccare la sync
-    # Usa il formato Markdown per il messaggio
-    wget -q --timeout=10 --tries=2 -O /dev/null \
-        --post-data="$(printf '{"title":"%s","message":"%s","priority":%s,"extras":{"client::display":{"contentType":"text/markdown"}}}' \
-            "${title}" "${message}" "${priority}")" \
-        --header="Content-Type: application/json" \
-        "${GOTIFY_URL}/message?token=${GOTIFY_TOKEN}" 2>/dev/null &
+    # Crea il payload JSON con corretta escape
+    # Usa jq se disponibile, altrimenti fallback a printf con escape
+    local payload
+    if command -v jq &>/dev/null; then
+        payload=$(jq -c -n \
+            --arg title "$title" \
+            --arg message "$message" \
+            --argjson priority "$priority" \
+            '{title: $title, message: $message, priority: $priority, extras: {"client::display": {contentType: "text/markdown"}}}')
+    else
+        # Fallback: escape manuale per i caratteri JSON
+        title=$(printf '%s' "$title" | sed 's/\\/\\\\/g; s/"/\\"/g')
+        message=$(printf '%s' "$message" | sed 's/\\/\\\\/g; s/"/\\"/g; s/$/, /g' | sed 's/, $//')
+        payload="{\"title\":\"${title}\",\"message\":\"${message}\",\"priority\":${priority},\"extras\":{\"client::display\":{\"contentType\":\"text/markdown\"}}}"
+    fi
 
-    log_info "Notifica Gotify inviata: ${title}"
+    # Invia la notifica in background per non bloccare la sync
+    # Cattura il risultato per il debug
+    wget -q --timeout=10 --tries=2 -O /dev/null \
+        --post-data="${payload}" \
+        --header="Content-Type: application/json" \
+        "${GOTIFY_URL}/message?token=${GOTIFY_TOKEN}" 2>/tmp/gotify_error.log &
+    
+    local pid=$!
+    wait $pid 2>/dev/null
+    
+    if [ $? -eq 0 ]; then
+        log_info "Notifica Gotify inviata: ${title}"
+    else
+        log_warn "Errore invio Gotify: $(cat /tmp/gotify_error.log 2>/dev/null || echo 'sconosciuto')"
+    fi
 }
 
 gotify_notify_sync_result() {