Update dependency @xterm/addon-webgl to v0.20.0-beta.290

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@xterm/addon-webgl (source)	0.20.0-beta.287 → 0.20.0-beta.290

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Release Notes

xtermjs/xterm.js (@​xterm/addon-webgl)

v0.20.0-beta.290

Compare Source

v0.20.0-beta.289

Compare Source

v0.20.0-beta.288

Compare Source

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[dormouse-bot]

This bump should not land — recommend closing.

canopy's @xterm/addon-webgl isn't an ordinary dependency to keep current; it's the UpstreamVsFork regression baseline, deliberately pinned to the exact commit the SDF fork's sdf branch is built from. Both canopy/README.md and docs/specs/webgl-text.md state the invariant: the upstream pin must be the same commit as the fork base — 0.20.0-beta.287 == core 6.1.0-beta.288 == gitHead 8aab3103.

Bumping to 0.20.0-beta.290 breaks that two ways:

• Baseline no longer same-commit. Per this PR's own release notes, beta.290 sits at gitHead 699f5537, not 8aab3103. The fork tarball is still sdf-v0.20.0-sdf288.5 (built against core beta.288), so the UpstreamVsFork story would compare pristine-upstream-beta.290 against a fork built from a different commit — the harness stops isolating the fork's changes, which is its entire purpose. The RENDERER_LABELS comment ("same commit as the fork base") would also become factually wrong.
• Peer mismatch. beta.290 peer-requires @xterm/xterm: ^6.1.0-beta.291, but canopy pins @xterm/xterm at 6.1.0-beta.288, so the baseline would run against an unsupported (older) core.

This pin moves manually, in lockstep with the hand-cut @diffplug/xterm-addon-webgl-sdf tarball, only when the fork rebases. To stop Renovate re-opening this every Monday, I opened #281 (adds a packageRules entry disabling @xterm/addon-webgl, matching the existing dockview-react/node precedents).

Heads-up on the sibling PR: #280 bumps @xterm/xterm 6.1.0-beta.288 → 6.1.0-beta.291. Because canopy shares that pin, merging #280 would desync canopy's core from the same fork tarball for the same lockstep reason. Unlike @xterm/addon-webgl (canopy-only), @xterm/xterm is also used by lib/standalone where a core bump may be wanted, and a packageRules match can't target just the canopy instance — so how to gate that is a maintainer call rather than something I've pinned in #281.

[nedtwigg]

Superseded by #281, which disables @xterm/** for canopy/package.json entirely.

canopy's @xterm/addon-webgl@0.20.0-beta.287 is the pristine upstream baseline for the UpstreamVsFork regression harness, pinned to the exact commit the SDF fork's sdf branch is based on (addon 0.20.0-beta.287 == core 6.1.0-beta.288 == gitHead 8aab3103). It moves only when the fork rebases, as a manual edit alongside the @diffplug/xterm-addon-webgl-sdf tarball URL — see docs/specs/webgl-text.md. Renovate can't see the tarball, so it can't know the two are coupled.

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