Dsh Custom Theme Import

Key features

• Import mainstream DSH skin package format from local paths or GitHub.
• lib/client.js must be a DSH ModuleLoader bundle exporting apply(ctx).
• Local path imports reference in place by default
• Also import DSH theme plugins without skin.json when they are standard web client packages (dsh.client.platform: "web" + lib/client.js).
• Scan installed skins from the web profile's node_modules.