v2.0.7

Changed

• Replaced custom esbuild build.js with prepare-package build system
• Build config now lives in package.json under preparePackage key
• Iframe URL construction uses new URL() instead of string concatenation

Added

• Widget version is now passed to the embed iframe via URL params and chatsy:init postMessage

Removed

• Deleted build.js (replaced by prepare-package)
• Removed esbuild dev dependency