fix: add pathexists for paths.js to check symlink

backend/core/paths.js

@@ -181,17 +181,27 @@ async function getModsPath(customInstallPath = null) {
     if (!fs.existsSync(modsPath)) {
       // Check for broken symlink to avoid EEXIST/EPERM on mkdir
       let isBrokenLink = false;
+      let pathExists = false;
       try {
           const stats = fs.lstatSync(modsPath);
-        if (stats.isSymbolicLink()) isBrokenLink = true;
+          pathExists = true;
-      } catch (e) { /* ignore */ }
+          if (stats.isSymbolicLink()) {
+              // Check if target exists
+              try {
+                  fs.statSync(modsPath);
+              } catch {
+                  isBrokenLink = true;
+              }
+          }
+      } catch (e) { /* path doesn't exist at all */ }
 
       if (!isBrokenLink) {
         fs.unlinkSync(modsPath); // Remove broken symlink
       }
-      // Ensure the Mods directory exists
+      if (!pathExists || isBrokenLink) {
         fs.mkdirSync(modsPath, { recursive: true });
       }
+    }
     if (!fs.existsSync(disabledModsPath)) {
       fs.mkdirSync(disabledModsPath, { recursive: true });
     }