fix/set-annotations

[TrevorBurgoyne]

fix/set-annotations

Description

• Fix regression in set_annotations() where hover feedback and the brush stopped working after a swap. The 0.26.1 bulk-teardown path called $("#canvasses__<subtask>").empty(), which removed not just the per-annotation canvases but also the subtask's front canvas and the #dialogs__<subtask> container (which owns the brush circle and polygon ender). state.front_context was left pointing at a detached canvas so hover highlights painted into nothing, and the brush had no parent to attach to. The teardown now removes only > canvas.annotation_canvas children, leaving the front/back canvases and dialogs container intact.
• New demo: demo/set-annotations.html with buttons that swap through empty / small / medium / large / RLE-bitmask / raw-Uint8Array-bitmask presets so this regression stays visible.

PR Checklist

• Merged latest main
• Version number in package.json has been bumped since last release
• Version numbers match between package package.json and src/version.js
• Updated documentation if necessary (currently just in api_spec.md)
• Added changes to changelog.md

Breaking API Changes

No

[Copilot]

Pull request overview

Fixes a set_annotations() regression where bulk teardown removed the subtask’s front canvas and dialogs container (breaking hover feedback and brush UI), and adds a dedicated demo page to exercise annotation swapping scenarios.

Changes:

• Update bulk teardown to remove only per-annotation canvases (canvas.annotation_canvas) instead of emptying the entire #canvasses__<subtask> container.
• Strengthen the unit test to reflect the init-time DOM structure and assert the front/back canvases + dialogs container survive teardown.
• Bump library version to 0.26.2 and add a new set-annotations demo + demo URL listing.

Reviewed changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tests/annotation.test.js	Updates teardown test to ensure only per-annotation canvases are removed and critical UI containers remain.
src/index.js	Fixes teardown selector to preserve front/back canvases and dialogs container during set_annotations().
src/version.js	Bumps exported version to 0.26.2.
package.json	Bumps package version to 0.26.2.
package-lock.json	Keeps lockfile version metadata in sync with 0.26.2.
demo/set-annotations.html	Adds a new demo page to swap through multiple annotation presets (including bitmask variants).
demo.js	Adds the new demo URL to the local demo server output.

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