chore: cleanup the cleanup scripts (#1266)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Updated the plugin installation endpoint to use a new port for
improved connectivity.
- Streamlined installation and removal processes for a more reliable
setup and clearer cleanup feedback.
- Introduced a new script to manage cleanup operations, enhancing system
maintenance during removals.
- **Chores**
- Expanded file monitoring to support additional file types, ensuring
timely updates.
- Optimized background operations that configure essential components
for enhanced overall performance.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.my.servers/scripts/cleanup_operations.php

@@ -0,0 +1,87 @@
+#!/usr/bin/php
+<?php
+// Script Name: cleanup_operations.php
+// Purpose: Handles cleanup operations for both install on unsupported OS and during removal
+// 
+// Usage:
+//    ./cleanup_operations.php
+//    ./cleanup_operations.php --debug
+
+// Parse command line arguments
+$debug = false;
+
+if (isset($argv)) {
+  foreach ($argv as $arg) {
+    if ($arg === '--debug') {
+      $debug = true;
+    }
+  }
+}
+
+// Debug function
+function debug_log($message) {
+  global $debug;
+  if ($debug) {
+    echo "[DEBUG] [cleanup_operations]: $message\n";
+  }
+}
+
+// Get Unraid version and myservers config
+$ver = @parse_ini_file('/etc/unraid-version', true)['version'];
+$msini = @parse_ini_file('/boot/config/plugins/dynamix.my.servers/myservers.cfg', true);
+
+debug_log("Unraid version: $ver");
+debug_log("myservers.cfg exists: " . ($msini !== false ? "Yes" : "No"));
+
+echo "\n";
+echo "**********************************\n";
+echo "🧹 CLEANING UP - may take a minute\n";
+echo "**********************************\n";
+
+if (file_exists("/boot/.git")) {
+  if (file_exists("/etc/rc.d/rc.flash_backup")) {
+    # stop flash backup service
+    echo "\nStopping flash backup service. Please wait…";
+    exec("/etc/rc.d/rc.flash_backup stop &>/dev/null");
+  }
+  if (file_exists("/usr/local/emhttp/plugins/dynamix.my.servers/include/UpdateFlashBackup.php")) {
+    # deactivate and delete local flash backup
+    echo "\nDeactivating flash backup. Please wait…";
+    passthru("/usr/bin/php /usr/local/emhttp/plugins/dynamix.my.servers/include/UpdateFlashBackup.php deactivate");
+  }
+}
+
+# set "Allow Remote Access" to "No" and sign out from Unraid Connect
+if ($msini !== false) {
+  # stop unraid-api
+  echo "\nStopping unraid-api. Please wait…";
+  $output = shell_exec("/etc/rc.d/rc.unraid-api stop --delete 2>&1");
+  if (!$output) {
+    echo "Waiting for unraid-api to stop...\n";
+    sleep(5); // Give it a few seconds to fully stop
+  }
+  echo "Stopped unraid-api: $output";
+
+  if (!empty($msini['remote']['username'])) {
+    $var = parse_ini_file("/var/local/emhttp/var.ini");
+    $keyfile = @file_get_contents($var['regFILE']);
+    if ($keyfile !== false) {
+      echo "\nSigning out of Unraid Connect\n";
+      $ch = curl_init('https://keys.lime-technology.com/account/server/unregister');
+      curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+      curl_setopt($ch, CURLOPT_POST, 1);
+      curl_setopt($ch, CURLOPT_POSTFIELDS, ['keyfile' => @base64_encode($keyfile)]);
+      curl_exec($ch);
+      curl_close($ch);
+    }
+  }
+
+  # remove myservers.cfg
+  unlink('/boot/config/plugins/dynamix.my.servers/myservers.cfg');
+
+  # reload nginx to disable Remote Access
+  echo "\n⚠️ Reloading Web Server. If this window stops updating for two minutes please close it.\n";
+  exec("/etc/rc.d/rc.nginx reload &>/dev/null");
+}
+
+exit(0);