Release the WebGL context in ChartView.destroy()

[masenf]

A full-payload republish rebuilds the view (destroy + new ChartView, hence a new GL context), and browsers cap live contexts (~16 in Chrome). destroy() freed GPU resources but never released the context itself, so destroyed contexts lingered until GC and — under repeated republishes, e.g. an on_view_change-driven figure refresh — tripped the browser's "too many active WebGL contexts" eviction.

destroy() now releases the context via WEBGL_lose_context after freeing resources; the context-lost listeners are already removed and _destroyed is set, so the resulting event starts no recovery. Rebuild the committed static bundles and record the behavior in the dossier (§18) and renderer-architecture (R8).

[codspeed-hq]

Merging this PR will not alter performance

✅ 94 untouched benchmarks
⏩ 1 skipped benchmark¹

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_{Comparing claude/webgl-context-release (efdf4f0) with main (c2a61d8)}

Footnotes

1. 1 benchmark was skipped, so the baseline result was used instead. If it was deleted from the codebase, click here and archive it to remove it from the performance reports. ↩

[greptile-apps]

Greptile Summary

This PR releases each WebGL context when its chart view is destroyed. The main changes are:

• Calls WEBGL_lose_context after deleting GPU resources.
• Rebuilds the browser and standalone static bundles.
• Documents context release in the renderer design notes.

Confidence Score: 5/5

This looks safe to merge.

No blocking issues found in the changed code.

No files need additional attention.

T-Rex Logs

What T-Rex did

• The team compared pre-change and post-change Chromium recordings to verify that the ChartView flow remained the same.
• In the post-change recording, all 20 contexts were lost immediately and the final replacement remained connected with context state ready while destroyed views did not recover.
• The image evidence shows the replacement ChartView was successfully rendered after 20 changed-bundle lifecycle cycles and stayed connected with context state ready.

_{Ran code and verified through T-Rex}

Important Files Changed

Filename	Overview
js/src/50_chartview.js	Adds guarded WebGL context release after listeners, asynchronous work, and GPU resources are cleaned up.
python/xy/static/index.js	Includes the source lifecycle change in the generated browser bundle.
python/xy/static/standalone.js	Includes the source lifecycle change in the generated standalone bundle.
spec/design-dossier.md	Documents immediate context release during chart teardown and rebuild.
spec/design/renderer-architecture.md	Updates the lifecycle cleanup design record to include context release.

_{Reviews (1): Last reviewed commit: "Release the WebGL context in ChartView.d..." | Re-trigger Greptile}