chore: update project state and prepare for image support development

- Add comprehensive image test document with various image types
- Update project structure with development artifacts
- Prepare foundation for image support enhancement phase
- Include test files for validating image editing workflows

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

node_modules/browserslist/error.d.ts

@@ -0,0 +1,7 @@
+declare class BrowserslistError extends Error {
+  constructor(message: any)
+  name: 'BrowserslistError'
+  browserslist: true
+}
+
+export = BrowserslistError