fix: resolve TS2345 in PerspectivePlugins customElements.define

[ralphstodomingo]

Summary

• Adds type cast for PerspectiveDatagridJSONViewerPlugin at the customElements.define() call to fix TS2345 build error
• Fixes ?? operator precedence bug in 4 files where the nullish fallback was inside .map() (always no-op) instead of outside it

Context

TS2345: Started after PR #1833 (b0a58e4a) changed moduleResolution from "node" to "bundler" in webview_panels/tsconfig.json. Under "bundler" resolution, TypeScript requires customElements.define() arguments to fully satisfy CustomElementConstructor. The plugin class extends its base dynamically via customElements.get(), which TS cannot statically verify — the cast is safe at runtime.

?? precedence: tags?.map((v) => ({ label: v, value: v }) ?? []) — the ?? [] applied to each mapped object literal (always truthy, never triggered). Fixed to tags?.map((v) => ({ label: v, value: v })) ?? [] so the fallback correctly applies when the source array is nullish. Same behavior when the array exists, correct fallback when it doesn't.

Test plan

• npx tsc --noEmit passes with zero errors
• Vite build completes without ?? operator warnings

[coderabbitai]

Walkthrough

Small, localized edits: added a type cast when registering a custom element, simplified Select value/defaultValue mapping to remove redundant nullish-coalescing, and reordered some imports in two components. No runtime logic or control flow changes.

Changes

Cohort / File(s)	Summary
Custom Element Type Casting webview_panels/src/modules/queryPanel/components/perspective/PerspectivePlugins.ts	Changed customElements.define() to cast PerspectiveDatagridJSONViewerPlugin as unknown as CustomElementConstructor.
Select value/defaultValue simplifications webview_panels/src/modules/documentationEditor/components/tests/forms/AcceptedValues.tsx, webview_panels/src/modules/queryPanel/components/filters/Filters.tsx, webview_panels/src/modules/queryPanel/components/queryPanelBookmarks/BookmarkButton.tsx	Removed redundant ?? []/inner nullish-coalescing inside map() expressions for value/defaultValue, consolidating empty-array fallback at the top level. No behavioral change.
Import reordering webview_panels/src/modules/documentationEditor/components/tests/forms/AcceptedValues.tsx, webview_panels/src/modules/queryPanel/components/queryPanelBookmarks/BookmarkButton.tsx	Reordered and regrouped imports (logger, request executors, hooks/actions) — purely organizational, no runtime logic changes.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically summarizes the main change: fixing a TypeScript TS2345 error in the PerspectivePlugins customElements.define call.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description check	✅ Passed	The pull request description is well-structured with clear problem/solution sections, detailed context explaining the TS2345 build error and ?? precedence bug, and a comprehensive test plan with verifiable steps.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/perspective-plugin-ts-error

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