Unify CodeGraphy on the WebGPU renderer

[joesobo]

Goal

Recreate the WebGPU renderer work from #307 and renderer-independent Explorer parity/performance work from #304 on a clean branch from main. No merges or cherry-picks.

Planned scope

• Remove 3D mode and timeline
• Establish deterministic benchmark baselines
• Make the custom WebGPU 2D renderer and typed-array physics the only graph stack
• Port remaining graph features and desktop interactions
• Reach ≥30 scripted-drag FPS through the deterministic 10,000-file tier
• Remove react-force-graph, 3D, and d3-force dependencies

Validation discipline

Small semantic ports gated by typecheck, targeted tests, metric non-regression, fresh-context review, milestone feature sweeps, CI, and scoped @poleski/quality-tools.

Reference PRs remain open: #304 and #307.

[changeset-bot]

🦋 Changeset detected

Latest commit: a1e8135

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 11 packages

Name	Type
@codegraphy-dev/extension	Minor
@codegraphy-dev/plugin-api	Major
@codegraphy-dev/core	Major
@codegraphy-dev/plugin-unity	Patch
@codegraphy-dev/plugin-godot	Patch
@codegraphy-dev/plugin-markdown	Patch
@codegraphy-dev/plugin-particles	Patch
@codegraphy-dev/plugin-svelte	Patch
@codegraphy-dev/plugin-typescript	Patch
@codegraphy-dev/plugin-vue	Patch
@codegraphy-dev/mcp	Patch

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