v1.3.0: Architectural shift to a plugin-based system

Mercur v1.3.0 introduces a fundamental architectural shift to a plugin-based system, transforming how Mercur is installed and maintained.

What's Changed

Architectural shift to a plugin-based system

• Cleaner separation between Medusa core and Mercur extensions
• Easier updates and maintenance through modular architecture
• Independent versioning for different components
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Enhanced CLI tooling:

• New Mercur CLI (https://www.npmjs.com/package/mercur-cli) for automated setup
• Handles Medusa instance creation
• Automatic Mercur integration
• Simplified configuration process

What's Fixed

• Fix: Link tax regions to system tax provider