fix: rename global.mount_point to avoid misunderstanding

src/config.cr

@@ -90,13 +90,13 @@ module GX
 
       root = Models::RootConfig.from_yaml(file_patched)
 
-      global_mount_point = root.global.mount_point
+      mount_point_base_safe = root.global.mount_point_base
-      raise Models::InvalidMountpointError.new("Invalid global mount point") if global_mount_point.nil?
+      raise Models::InvalidMountpointError.new("Invalid global mount point") if mount_point_base_safe.nil?
 
       root.filesystems.each do |selected_filesystem|
         if !selected_filesystem.mount_point?
           selected_filesystem.mount_point = 
-            File.join(global_mount_point, selected_filesystem.mounted_name)
+            File.join(mount_point_base_safe, selected_filesystem.mounted_name)
         end
       end
       @root = root

src/models/global_config.cr

@@ -14,16 +14,16 @@ module GX::Models
     include YAML::Serializable
     include YAML::Serializable::Strict
 
-    @[YAML::Field(key: "mount_point")]
+    @[YAML::Field(key: "mount_point_base")]
-    getter mount_point : String?
+    getter mount_point_base : String?
 
     def after_initialize()
       raise InvalidEnvironmentError.new("Home directory not found") if !ENV["HOME"]?
       home_dir = ENV["HOME"]
 
       # Set default mountpoint from global if none defined
-      if @mount_point.nil? || @mount_point.try &.empty?
+      if @mount_point_base.nil? || @mount_point_base.try &.empty?
-        @mount_point = File.join(home_dir, "mnt")
+        @mount_point_base = File.join(home_dir, "mnt")
       end
     end
   end