feat: implement core storage engine for filter presets #53
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Summary
Implements a comprehensive storage engine for managing filter presets with localStorage persistence, as specified in issue #47.
Key Features
✅ PresetStorageEngine - Main class for preset management
✅ Storage Adapter Pattern - Extensible design
LocalStorageAdapter
implementation with full error handling✅ Cross-Tab Synchronization
✅ Comprehensive Testing
Implementation Details
GridState
interface fromgridStateUtils
any
typesFiles Added
src/utils/presetStorage/types.ts
- Core interfacessrc/utils/presetStorage/LocalStorageAdapter.ts
- LocalStorage implementationsrc/utils/presetStorage/PresetStorageEngine.ts
- Main storage enginesrc/utils/presetStorage/index.ts
- Module exportsCloses #47