fix: app image - could not load model

extensions/engine-management-extension/src/node/index.ts

@@ -4,11 +4,12 @@ import {
   getJanDataFolderPath,
   log,
 } from '@janhq/core/node'
-import { mkdir, readdir, symlink } from 'fs/promises'
+import { mkdir, readdir, symlink, cp } from 'fs/promises'
-
+import { existsSync } from 'fs'
 
 /**
  * Create symlink to each variant for the default bundled version
+ * If running in AppImage environment, copy files instead of creating symlinks
  */
 const symlinkEngines = async () => {
   const sourceEnginePath = path.join(
@@ -23,6 +24,8 @@ const symlinkEngines = async () => {
     'cortex.llamacpp'
   )
   const variantFolders = await readdir(sourceEnginePath)
+  const isAppImage = !!process.env.APPIMAGE
+  
   for (const variant of variantFolders) {
     const targetVariantPath = path.join(
       sourceEnginePath,
@@ -39,10 +42,25 @@ const symlinkEngines = async () => {
       recursive: true,
     }).catch((error) => log(JSON.stringify(error)))
 
-    await symlink(targetVariantPath, symlinkVariantPath, 'junction').catch(
+    // Skip if already exists
-      (error) => log(JSON.stringify(error))
+    if (existsSync(symlinkVariantPath)) {
-    )
+      console.log(`Target already exists: ${symlinkVariantPath}`)
-    console.log(`Symlink created: ${targetVariantPath} -> ${symlinkEnginePath}`)
+      continue
+    }
+
+    if (isAppImage) {
+      // Copy files for AppImage environments instead of symlinking
+      await cp(targetVariantPath, symlinkVariantPath, { recursive: true }).catch(
+        (error) => log(JSON.stringify(error))
+      )
+      console.log(`Files copied: ${targetVariantPath} -> ${symlinkVariantPath}`)
+    } else {
+      // Create symlink for other environments
+      await symlink(targetVariantPath, symlinkVariantPath, 'junction').catch(
+        (error) => log(JSON.stringify(error))
+      )
+      console.log(`Symlink created: ${targetVariantPath} -> ${symlinkVariantPath}`)
+    }
   }
 }