feat(atomic-a11y): scaffold new package for accessibility tooling

[y-lakhdar]

Scaffolds the new @coveo/atomic-a11y package for accessibility tooling. This is the root PR for the a11y package chain.

What's included

• packages/atomic-a11y/ with package.json, tsconfig.json, turbo.json
• Workspace configuration (pnpm-workspace.yaml, root package.json)
• Empty barrel export ready for a11y module extraction

PR Chain (1 of 7)

#	PR	Branch	Description
1	#7111	feat/a11y-package-scaffold	Package scaffolding ← this PR
2	#7122	feat/a11y-shared-foundation	Shared types, constants, utilities
3	#7123	feat/a11y-reporter	VitestA11yReporter
4	#7124	feat/a11y-openacr	OpenACR report generator
5	#7125	feat/a11y-scripts	CLI scripts
6	#7126	feat/a11y-reporter-wiring	Wire reporter into atomic vitest config
7	#7117	feat/a11y-ci-integration	Weekly a11y scan workflow

KIT-5472

[Copilot]

Pull request overview

Scaffolds a new workspace package, @coveo/atomic-a11y, to host upcoming accessibility tooling for Atomic (foundation for the linked PR chain).

Changes:

• Added packages/atomic-a11y/ with initial package.json, tsconfig.json, turbo.json, and an empty barrel export.
• Registered the new package in the pnpm workspace (and updated the lockfile importer section accordingly).
• Updated cspell dictionary entries to accommodate upcoming a11y terminology used in the docs.

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
pnpm-workspace.yaml	Adds packages/atomic-a11y to the workspace package globs.
pnpm-lock.yaml	Adds an importer entry for the new package’s devDependencies.
packages/atomic-a11y/package.json	Defines the new private package metadata and build script.
packages/atomic-a11y/tsconfig.json	Establishes TS build output and NodeNext module settings for the new package.
packages/atomic-a11y/turbo.json	Adds package-level Turbo task configuration for build.
packages/atomic-a11y/src/index.ts	Empty barrel module placeholder.
packages/atomic-a11y/PR-DEPENDENCY-GRAPH.md	Documents the intended PR merge chain for the a11y workstream.
.cspell.json	Adds openacr and VPAT to the workspace dictionary.

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

[Copilot]

packages/atomic-a11y/turbo.json defines a package-level build task without dependsOn: ["^build"]. In this repo, package turbo.json task definitions override the root defaults (e.g., packages/atomic/turbo.json), so this drops the workspace-wide build dependency chain and can lead to incorrect build ordering once atomic-a11y depends on other workspace packages. Add dependsOn: ["^build"] (or remove this override if it’s not needed) to keep build behavior consistent with other packages like packages/atomic-angular/turbo.json.

Suggested change

	"build": {
	"build": {
	"dependsOn": ["^build"],