DSH plug-in market

Key features

• Proven DSH plugin marketplace, and self-maintained central registry.
• When discovery.json is missing, the plug-in can still be searched and installed, but the category is displayed as "Other" and the Star increases to 0
• dsh.bundle.patch points to a safe relative path within the warehouse
• When guided-audit.json is missing, the Agent will still perform read-only verification based on the exact commit of the core Registry, but there will be no auxiliary audit information from the scanner.
• When declaring dsh.client, the platform must be web and export ./client