[codex] Remove COORDINATE_SYSTEM.IDENTITY alias (v10)

[charlieforward9]

Goal

Remove the deprecated COORDINATE_SYSTEM.IDENTITY compatibility alias for the v10 cleanup.

Changes

• Removed the deprecated Object.defineProperty(COORDINATE_SYSTEM, 'IDENTITY', ...) getter and its warning-only log import.
• Replaced active test app and showcase usages with COORDINATE_SYSTEM.CARTESIAN.
• Removed unit-test coverage that only asserted the deprecated alias behavior.

Documentation

• Add this to the v10 What's New / release notes: COORDINATE_SYSTEM.IDENTITY has been removed; use COORDINATE_SYSTEM.CARTESIAN instead.

Validation

• yarn test-headless test/modules/core/shaderlib/project/project-functions.spec.ts test/modules/core/shaderlib/project/viewport-uniforms.spec.ts test/modules/mesh-layers/utils.spec.ts
• Pre-commit hook during commit: module/test/example lint and Prettier checks, lockfile validation, node Vitest smoke tests. Existing lint warnings were reported, with 0 errors.

[coveralls]

coverage: 82.495% (-0.002%) from 82.497% — codex/remove-coordinate-system-identity into master

[chrisgervang]

Let's hold on merging while we focus master on 9.4 betas

[charlieforward9]

@copilot resolver los conflictos de combinación en esta rama.

[Copilot]

@copilot resolver los conflictos de combinación en esta rama.

Merged origin/master into this branch. The only conflict was in modules/core/src/lib/constants.ts: master added DoubleClickDrag to the mjolnir.js import while this PR removed the log import (no longer needed after removing the deprecated IDENTITY getter). Resolution: kept DoubleClickDrag, dropped log.

[ibgreen-openai]

Nit: I believe that we are using string constants now for the coordinateSystem prop (so that apps don't have to import COORDINATE_SYSTEM, the enum values should be deprecated and avoided in code.

[greptile-apps]

Greptile Summary

This PR removes the deprecated COORDINATE_SYSTEM.IDENTITY compatibility getter and migrates repository examples and tests to its cartesian value.

• Removes the warning-only logging dependency associated with the alias.
• Updates showcase and test-app coordinate-system configuration.
• Deletes tests dedicated to the removed compatibility behavior.
• Still needs the v10 migration or release-note entry named in the PR description.

Confidence Score: 4/5

The implementation appears safe to merge after adding the missing v10 migration note for the removed public alias.

The code replacements preserve the alias's former cartesian behavior, but users upgrading with IDENTITY references currently lack repository documentation explaining the resulting build or runtime failure and required replacement.

Files Needing Attention: modules/core/src/lib/constants.ts and the v10 upgrade or release documentation

Important Files Changed

Filename	Overview
modules/core/src/lib/constants.ts	Removes the deprecated IDENTITY getter correctly, but the public API removal lacks corresponding migration documentation.
showcases/ascii/ascii-layer/ascii-layer.js	Replaces IDENTITY with its equivalent and supported 'cartesian' value.
showcases/graph/graph-layer/graph-layer.js	Updates the default coordinate system to the equivalent supported string value.
test/apps/svg-interoperability/app.jsx	Migrates both active layer configurations from IDENTITY to cartesian.
test/modules/mesh-layers/utils.spec.ts	Updates test inputs to valid coordinate-system string constants while preserving behavioral coverage.

_{Reviews (1): Last reviewed commit: "Merge branch 'master' into codex/remove-..." | Re-trigger Greptile}

[greptile-apps]

Document the removed public alias

The v10 migration and release documentation does not record that COORDINATE_SYSTEM.IDENTITY was removed or that callers must use COORDINATE_SYSTEM.CARTESIAN. This leaves TypeScript consumers without guidance for the resulting compile error and JavaScript consumers without guidance when the missing property becomes an invalid undefined coordinate system at runtime.