Rewrite ecs core

[SpectralDragon]

Update logic for storing and accessing components

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Note

Massive refactor introducing chunk-based ECS with async queries/systems, revamped schedulers/resources, updated render graph/pipelines and Metal backend, reworked input/UI, and added extensive tests.

• ECS Core:
  • Introduce chunk-based storage (Chunks, Chunk, ComponentLayout, BlobArray, SparseSet) and new Archetype model with edges.
  • Revamp queries and system params (WorldQueryTarget, QueryTarget, FilterQuery, SystemParameter, Ref, Res/ResMut), change detection via Tick.
  • Replace executors with protocol + single-threaded executor; simplify SystemsGraph; add System async update.
  • Overhaul World (entities/records, command queue, resources API, extract/spawn APIs, change tracking).
• Schedulers:
  • Add/rename stages (extract, prepare, render, renderRunner, fixedUpdate removal/changes); new DefaultSchedulerRunner; async stage execution.
• Rendering:
  • New command encoder layer (CommandBuffer, RenderCommandEncoder, Blit*); refactor Metal backend (swapchain/drawables, windows), remove old draw list paths.
  • Render graph becomes value type; new nodes for 2D (Main2DRenderNode, UpscaleNode); introduce pipeline configurators/cache (RenderPipelines).
  • Camera/render target rework (RenderViewTarget, viewport/texture handling); window surfaces management in render world.
• Input/UI:
  • Input becomes Resource struct with rumble engine, event clearing system; update Apple gamepad manager to emit via callback.
  • UI systems updated; add UIRender scaffolding and window management resources.
• Plugins:
  • Migrate plugins (Physics, RenderWorld, Sprite, Text, Camera, Tilemap, etc.) to new APIs/schedulers.
• Utilities:
  • Add BlobArray, SparseSet, UnsafeBox, fixed-array/set helpers, hashing/util extensions.
• Tests:
  • Add comprehensive ECS/storage/scheduler/world tests and utils tests (SparseArray/Set, hashing).

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