chore: remove more stencil files

[louis-bompart]

And move item decorators to atomic-legacy

[Copilot]

Pull request overview

This PR continues the ongoing migration of Stencil components to Lit within the packages/atomic codebase. It removes a large set of Stencil-specific utility files (accessibility utils, button components, facet components, interface helpers, etc.), renames initialization-lit-stencil-common-utils.ts to initialization-common-utils.ts to reflect its Stencil-agnostic nature, and moves the resultContext and productContext item decorator functions into packages/atomic-legacy. The packages/atomic public API is kept stable by re-exporting the decorators through @coveo/atomic-legacy/item-decorators.

Changes:

• Removed a large collection of deprecated Stencil-prefixed utility files from packages/atomic/src (accessibility utils, button/heading/hidden components, facet components, interface helpers, etc.)
• Renamed initialization-lit-stencil-common-utils.ts → initialization-common-utils.ts and updated all references across the codebase
• Moved resultContext/productContext item decorators to packages/atomic-legacy with a new build target (tsconfig.decorators.json)

Reviewed changes

Copilot reviewed 45 out of 47 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
pnpm-lock.yaml	Adds @coveo/headless dependency to packages/atomic-legacy
packages/atomic/src/utils/initialization-common-utils.ts	New file (renamed from initialization-lit-stencil-common-utils.ts)
packages/atomic/src/index.ts	Re-exports item decorators from @coveo/atomic-legacy/item-decorators; removes stencil-specific decorator exports
packages/atomic/src/utils/initialization-common-utils.spec.ts	Import path updated to new filename
packages/atomic/src/utils/init-queue.ts	Import updated to new util filename
packages/atomic/src/mixins/bindings-mixin.ts	Import updated to new util filename
packages/atomic/src/mixins/bindings-mixin.spec.ts	Import and mock path updated
packages/atomic-legacy/src/item-decorators/common.tsx	Consolidates decorator utilities; removes ChildTemplatesContext
packages/atomic-legacy/src/item-decorators/index.tsx	New re-export barrel for product and result decorators
packages/atomic-legacy/src/item-decorators/product.tsx	Updated to import from ./common.js
packages/atomic-legacy/src/item-decorators/result.tsx	Updated to import from ./common.js
packages/atomic-legacy/package.json	Added @coveo/headless dependency and ./item-decorators export
packages/atomic-legacy/tsconfig.decorators.json	New tsconfig for compiling item-decorators with declaration files
packages/atomic/src/components/commerce/atomic-commerce-search-box/e2e/atomic-commerce-search-box.e2e.ts	Removes page.reload() since story now sets localStorage via beforeEach
Various fixture/interface files	Import paths updated from old to new utils filename
Various deleted Stencil util files	Deprecated Stencil-only files removed (no remaining consumers)

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

[Copilot]

The two export lines are missing semicolons, which is inconsistent with the rest of the codebase (e.g., packages/atomic/src/index.ts). Since .tsx files in packages/atomic-legacy are excluded from biome formatting, this won't be caught automatically.

Suggested change

	export * from './product.js'
	export * from './result.js'
	export * from './product.js';
	export * from './result.js';