refactor(NetworkConfigManager, mikrotikConfigRoutes): streamline logging and error handling in MikroTik configuration application; remove redundant debug log setup

backend/routes/mikrotikConfigRoutes.js

@@ -13,9 +13,6 @@ const {
   buildMikrotikConfig,
 } = require('../utils/mikrotikInterfaceGenerator');
 const { readS3TextObject } = require('../services/s3Service');
-if (!process.env.DEBUG?.includes('routeros-api')) {
-  process.env.DEBUG = (process.env.DEBUG || '') + (process.env.DEBUG ? ',' : '') + 'routeros-api:*';
-}
 const { RouterOSAPI } = require('node-routeros');
 const { applyBlock } = require('../services/mikrotikApplyService');
 
@@ -351,24 +348,6 @@ async function applyMikrotikConfig(req, res) {
       });
       conn.on('error', (e) => log('RouterOS API error', { error: e?.message || String(e), errno: e?.errno }));
       conn.on('close', () => log('RouterOS API connection closed'));
-      if (streamLogs) {
-        process.env.DEBUG = (process.env.DEBUG || '') + (process.env.DEBUG ? ',' : '') + 'routeros-api:*';
-        global.__mikrotikStreamLog = log;
-        const debugMod = require('debug');
-        const origLog = debugMod.log;
-        if (origLog && !debugMod._mikrotikPatched) {
-          debugMod._mikrotikPatched = true;
-          debugMod.log = function (...args) {
-            try {
-              const msg = args.map((a) => (typeof a === 'object' ? JSON.stringify(a) : String(a))).join(' ');
-              if (msg.includes('routeros-api') && global.__mikrotikStreamLog) {
-                global.__mikrotikStreamLog('node-routeros', { msg });
-              }
-            } catch (_) {}
-            return origLog.apply(this, args);
-          };
-        }
-      }
       try {
         log('Connecting to MikroTik', { host: host + ':' + port });
         await conn.connect();
@@ -408,8 +387,6 @@ async function applyMikrotikConfig(req, res) {
         if (conn) try { conn.close(); } catch (_) {}
         conn = null;
         throw err;
-      } finally {
-        delete global.__mikrotikStreamLog;
       }
     };