[CHORE] Remove unused workflow_call triggers from workspace CI templates

[c-vigo]

Chore Type

CI / Build change

Description

assets/smoke-test/.github/workflows/repository-dispatch.yml no longer invokes reusable workflows via
uses: ./.github/workflows/ci.yml and uses: ./.github/workflows/ci-container.yml.

The workspace template workflows still declare on.workflow_call:

• assets/workspace/.github/workflows/ci.yml
• assets/workspace/.github/workflows/ci-container.yml

This issue tracks removing obsolete reusable-workflow entry points and any now-stale rationale comments tied to that mode.

Acceptance Criteria

• Confirm there are no active callers that rely on workflow_call for workspace CI templates
• Remove workflow_call from assets/workspace/.github/workflows/ci.yml
• Remove workflow_call from assets/workspace/.github/workflows/ci-container.yml
• Remove/update related permission comments that only apply to reusable-workflow mode
• Validate workflow syntax and trigger behavior for PR + workflow_dispatch paths
• Update docs/changelog only if user-visible behavior or documented trigger model changes

Implementation Notes

Target files:

• assets/workspace/.github/workflows/ci.yml
• assets/workspace/.github/workflows/ci-container.yml
• (optional, if needed) docs that mention reusable invocation assumptions

Keep diff minimal and scoped to trigger/permission-comment cleanup.

Related Issues

• Related to [FEATURE] Smoke-test repository to validate shipped CI/CD workflows #169

Priority

Low

Changelog Category

Changed

Additional Context

This came from review of current local state where repository-dispatch.yml orchestrates deploy/PR flow and relies on PR-triggered CI rather than reusable uses: calls.