* docs: add editor-app README with setup instructions
* docs: add separate EN/CN editor setup guides
* feat(ecs): add @NetworkEntity decorator for auto spawn/despawn broadcasting
- Add @NetworkEntity decorator to mark components for automatic network broadcasting
- ECSRoom now auto-broadcasts spawn on component:added event
- ECSRoom now auto-broadcasts despawn on entity:destroyed event
- Entity.destroy() emits entity:destroyed event via ECSEventType
- Entity active state changes emit ENTITY_ENABLED/ENTITY_DISABLED events
- Add enableAutoNetworkEntity config option to ECSRoom (default true)
- Update documentation for both Chinese and English
## Server Testing Utils
- Add TestServer, TestClient, MockRoom for unit testing
- Export testing utilities from @esengine/server/testing
## Transaction Storage (BREAKING)
- Simplify RedisStorage/MongoStorage to factory pattern only
- Remove DI client injection option
- Add lazy connection and Symbol.asyncDispose support
- Add 161 unit tests with full coverage
## Pathfinding Tests
- Add 150 unit tests covering all components
- BinaryHeap, Heuristics, AStarPathfinder, GridMap, NavMesh, PathSmoother
## Docs
- Update storage.md for new factory pattern API
