Aggiunge 2 nuove variabili d'ambiente:

- SIGNALK_FILES, per specificare dove verranno salvati i file generati dal plugin
- HOST_NAME, per specificare il nome del dispositivo che sta hostando il plugin.

Inoltre, migliora il codice e lo adatta al nuovo path variabile SIGNALK_FILES

plugin/config.js

@@ -1,11 +1,46 @@
 const dotenv = require("dotenv");
 const path = require("path");
+const fs = require("fs");
 
 // Carica il file .env dalla root del plugin
 dotenv.config({ path: path.resolve(__dirname, "..", ".env"), quiet: true });
 
-const config = {
-    telegramBotToken: process.env.TELEGRAM_BOT_TOKEN,
+// Base path per tutti i file generati dal server
+const SIGNALK_FILES = process.env.SIGNALK_FILES || path.resolve(__dirname, "..", "data");
+
+// Crea le directory necessarie se non esistono
+function ensureDir(dirPath) {
+    if (!fs.existsSync(dirPath)) {
+        fs.mkdirSync(dirPath, { recursive: true });
+        console.log(`[Config] Creata directory: ${dirPath}`);
+    }
+    return dirPath;
+}
+
+// Paths per i vari tipi di file
+const paths = {
+    // Base
+    base: SIGNALK_FILES,
+    
+    // Logs: hourly_archive.json, logs_references.json, saved_datas/
+    logs: ensureDir(path.join(SIGNALK_FILES, "logs")),
+    hourlyArchive: path.join(SIGNALK_FILES, "logs", "hourly_archive.json"),
+    logsReferences: path.join(SIGNALK_FILES, "logs", "logs_references.json"),
+    savedDatas: ensureDir(path.join(SIGNALK_FILES, "logs", "saved_datas")),
+    
+    // Private: authorized_admins.txt, telegram_users.json
+    private: ensureDir(path.join(SIGNALK_FILES, "private")),
+    authorizedAdmins: path.join(SIGNALK_FILES, "private", "authorized_admins.txt"),
+    telegramUsers: path.join(SIGNALK_FILES, "private", "telegram_users.json"),
+    
+    // Sensors: sensors.references.json
+    sensors: ensureDir(path.join(SIGNALK_FILES, "sensors")),
+    sensorsReferences: path.join(SIGNALK_FILES, "sensors", "sensors.references.json")
 };
 
-module.exports = { config };
+const config = {
+    telegramBotToken: process.env.TELEGRAM_BOT_TOKEN,
+    paths
+};
+
+module.exports = { config, paths };