* move ref initialization to the component
* remove redundant init
* [refactor] Move minimap to domain-driven renderer structure
- Create new src/renderer/extensions/minimap/ structure following domain-driven design
- Add composables: useMinimapGraph, useMinimapViewport, useMinimapRenderer, useMinimapInteraction, useMinimapSettings
- Add minimapCanvasRenderer with efficient batched rendering
- Add comprehensive type definitions in types.ts
- Remove old src/composables/useMinimap.ts composable
- Implement proper separation of concerns with dedicated composables for each domain
The new structure provides cleaner APIs, better performance through batched rendering,
and improved maintainability through domain separation.
* [test] Fix minimap tests for new renderer structure
- Update all test imports to use new renderer paths
- Fix mock implementations to match new composable APIs
- Add proper RAF mocking for throttled functions
- Fix type assertions to handle strict TypeScript checks
- Update test expectations for new implementation behavior
- Fix viewport transform calculations in tests
- Handle async/throttled behavior correctly in tests
All 28 minimap tests now passing with new architecture.
* [fix] Remove unused init import in MiniMap component
* [refactor] Move useWorkflowThumbnail to renderer/thumbnail structure
- Moved useWorkflowThumbnail from src/composables to src/renderer/thumbnail/composables
- Updated all imports in components, stores and services
- Moved test file to match new structure
- This ensures all rendering-related composables live in the renderer directory
* [test] Fix minimap canvas renderer test for connections
- Fixed mock setup for graph links to match LiteGraph's hybrid Map/Object structure
- LiteGraph expects links to be accessible both as a Map and as an object
- Test now properly verifies connection rendering functionality
