fix(a11y): name-role-value compliance, partial (WCAG 4.1.2)

[bilal-karim]

Summary

Five 4.1.2 fixes batched per SC. Three audit issues deferred for reasons explained below.

Applied

• Accordion content panel: removed role=\"textbox\". Static disclosure panel was being announced as an editable text input on every Accordion consumer (NVDA "edit text", JAWS forms-mode switch). One-line deletion. (audit-output/issues/4.1.2-accordion-content-role-textbox.md)
• Accordion + AccordionLight structural fix: moved slot=\"action\" out of the disclosure <button> into a sibling element. Previously a <button><button>... nested-interactive output if a consumer placed focusable content there. The audit's recommended Part 2 runtime check is deferred. (audit-output/issues/4.1.2-accordion-action-slot-nested-interactive.md)
• CopyButton translated defaults: copyIconTitle / copySuccessIconTitle now default to i18n strings instead of empty. Fixes ~11 CodeBlock-via-default instances that rendered unlabeled icon-only buttons (because empty title → Icon self-hides → button name = ""). (audit-output/issues/4.1.2-copy-button-no-name.md)
• Nav hidden filter: nav-section.svelte now filters items where hidden=true. Standalone Activities (server <1.30.0) and Nexus (no systemInfo.capabilities.nexus) no longer render as focusable links for AT users on incapable servers. (audit-output/issues/4.1.2-nav-hidden-flag-ignored.md)
• Workflow family tree aria-labels: added aria-label=\"Workflow {id}: {status}\" to both <g role=\"button\"> widgets so AT announces node identity. (Partial fix for audit-output/issues/4.1.2-relationships-nested-interactive.md — Defect 1 only.)

Deferred (need separate PRs)

• 4.1.2-button-anchor-empty — audit recommends a two-PR sequenced rollout (primitive change + consumer migration). Out of scope for this batch.
• 4.1.2-codemirror-no-name — ~5 CodeBlock consumer surfaces need design input on label content (Pending Nexus Operation panels, Standalone Activity Details, Update Confirmation Modal, Archival code blocks, JSON Navigator).
• Relationships Defect 2 (nested-interactive restructure) — moving the four <a> elements out of the root <g role=\"button\"> and extracting the nested <Link> from workflow-family-node-description.svelte's outer <button> are substantial SVG/HTML restructures that should ship in their own PR with careful visual review.

Test plan

• Expand a workflow Accordion (failed-workflow stack trace, schedule advanced settings); confirm content reads correctly with no "edit text" announcement.
• If a consumer puts a Button in <Accordion slot=\"action\">, it is reachable by Tab as a sibling of the disclosure trigger, not as a nested control.
• On any CodeBlock with default copy enabled: the copy button announces as "Copy" (or translated equivalent); after click, "Copied".
• On a Temporal server lacking Nexus capability: the Nexus nav item does not appear in side-nav or bottom-nav.
• On Workflow Detail > Relationships: tab to the SVG family-tree nodes; AT announces "Workflow {id}: {status}" instead of bare "button".
• pnpm exec playwright test tests/accessibility/ — axe rules button-name, aria-allowed-attr, nested-interactive, svg-img-alt should not flag the touched surfaces.

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Project	Deployment	Actions	Updated (UTC)
holocene	Ready	Preview, Comment	May 22, 2026 12:33am

[temporal-cicd]

Warnings

⚠️

📊 Strict Mode: 12 errors in 4 files (1.3% of 914 total) src/lib/holocene/code-block.svelte (6) L146:32: 'editorView.contentHeight' is possibly 'undefined'. L166:24: Type 'number | boolean' is not assignable to type 'boolean'. L174:23: Type 'number | undefined' is not assignable to type 'number'. L174:34: Type 'number | undefined' is not assignable to type 'number'. L186:8: 'editorView' is possibly 'undefined'. L285:30: Type 'boolean | 0' is not assignable to type 'boolean | undefined'. src/lib/holocene/accordion/accordion.svelte (1) L9:12: Argument of type '$$Props' is not assignable to parameter of type '{ title: string; id?: string | undefined; subtitle?: string | undefined; icon?: null | undefined; open?: boolean | undefined; expandable?: boolean | undefined; error?: string | undefined; onToggle?: (() => void) | undefined; class?: string | undefined; }'. src/lib/holocene/accordion/accordion-light.svelte (2) L23:12: This expression is not callable. L6:12: Argument of type '$$Props' is not assignable to parameter of type '{ id?: string | undefined; open?: boolean | undefined; onToggle?: undefined; icon?: "search" | "link" | "success" | "error" | "action" | "activity" | "add-square" | "add" | "apple" | "archives" | ... 146 more ... | undefined; }'. src/lib/components/workflow/relationships/workflow-family-node-tree.svelte (3) L78:21: Parameter 'e' implicitly has an 'any' type. L221:8: Type 'false | "[writing-mode:vertical-lr]"' is not assignable to type 'ClassValue | null | undefined'. L228:25: 'child.siblingCount' is possibly 'undefined'.

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