feat: add gap, aspectRatio, flex, direction and boxSizing to UiTransform

[cyaiox]

What

Adds the remaining "easy" Yoga layout properties to UiTransformProps in @dcl/react-ecs:

• gap / rowGap / columnGap — flexbox gutters with CSS-like semantics. gap accepts a single value (both axes) or a two-value shorthand ('10px 5%' → row then column); supports px, %, vw, vh and bare numbers via the existing parsePositionUnit pipeline. Longhands win over the shorthand on their axis.
• aspectRatio — locks the element's width/height ratio.
• flex — the Yoga flex shorthand. The prop already existed in UiTransformProps but was silently dropped at serialization because PBUiTransform had no such field; it now works.
• direction — layout direction ('inherit' | 'ltr' | 'rtl').
• boxSizing — 'border-box' | 'content-box'.

Protocol dependency

Built on decentraland/protocol#460 (fields 78–87 + YGDirection/YGBoxSizing enums on component 1050). Both @dcl/protocol pins currently point at that PR's CI package — they must be repointed to the published version once the protocol PR merges, before this lands (make update-protocol).

Notes

• New enum zero-values equal Yoga's defaults (YGDIR_INHERIT, YGBS_BORDER_BOX), so proto3 default-omission and the reconciler's falsy-diff behavior are both safe.
• Snapshots regenerated; the non-UI .crdt diffs are bundle-size/malloc counters from the enlarged generated protobuf code. No ERR! lines.
• Renderer support is required for these to take effect in-world (Unity/Bevy need to map the new fields into Yoga/Taffy; percentage gap needs Yoga ≥ 3.1, box_sizing needs Yoga ≥ 3.2). Until then the fields serialize and are ignored.

Testing

• 4 new react-ecs test cases (shorthand parsing, longhand precedence, clearing transitions) + full/unset serialization cases in UiComponent.spec.ts.
• Full make test: 155 suites / 1159 tests green, @dcl/ecs 100% coverage gate passing.

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[github-actions]

Test this pull request

• The @dcl/sdk package can be tested in scenes by running

  npm install "https://sdk-team-cdn.decentraland.org/@dcl/js-sdk-toolchain/branch/cyaiox/feat-react-ecs/dcl-sdk-7.25.1-31092407930.commit-97ef834.tgz"

• The @dcl/js-runtime package can be tested in scenes by running

  npm install "https://sdk-team-cdn.decentraland.org/@dcl/js-sdk-toolchain/branch/cyaiox/feat-react-ecs/@dcl/js-runtime/dcl-js-runtime-7.25.1-31092407930.commit-97ef834.tgz"

• To test with npx init

  export SDK_COMMANDS="https://sdk-team-cdn.decentraland.org/@dcl/js-sdk-toolchain/branch/cyaiox/feat-react-ecs/dcl-sdk-commands-7.25.1-31092407930.commit-97ef834.tgz"
  npx $SDK_COMMANDS init

• The /changerealm command to test test in-world

  /changerealm https://sdk-team-cdn.decentraland.org/ipfs/cyaiox/feat-react-ecs-e2e
  

• You can preview this build entering:
  https://playground.decentraland.org/?sdk-branch=cyaiox/feat-react-ecs

[github-actions]

⚠️ Local Dependencies Detected

This PR contains package dependencies that use local paths (file:) or non-allowed URLs (http:, https:, git:).
These must be published and referenced properly before merging.

Not allowed dependencies:

- Dependency @dcl/protocol is not pointing to a published version: https://sdk-team-cdn.decentraland.org/@dcl/protocol/branch//dcl-protocol-1.0.0-31028775440.commit-ffd471e.tgz

Review the workflow logs for more details.

Note: This comment is automatically updated when the PR is updated.