Resolves #13896

Extends check-block-alignment.mjs so the formatter now catches declaration-alignment drift that previously escaped review: repeated keyword declaration runs, keyword-head comma-blocks with bare continuations, and stale padding in lone keyword declarations. The branch also dogfoods the new rule on the merged files that exposed the gap.

Evidence: L2 local static + focused unit evidence covers the close-target ACs. Residual: none.

Deltas from ticket

• Added repeated-keyword declaration block support and keyword-head comma-block support.
• Kept bare assignments out of scope, preserved template-line masking, and kept the legacy lone-keyword comma-block block-opener exclusion.
• Ran --fix against ai/services/graph/providerReadinessHelper.mjs and ai/daemons/orchestrator/scheduling/summary.mjs so the merged drift from PRs #13885 and #13888 is mechanically corrected by the improved linter.

Test Evidence

• node --check buildScripts/util/check-block-alignment.mjs
• node --check test/playwright/unit/ai/buildScripts/util/check-block-alignment.spec.mjs
• node --check ai/services/graph/providerReadinessHelper.mjs
• node --check ai/daemons/orchestrator/scheduling/summary.mjs
• node ./buildScripts/util/check-block-alignment.mjs buildScripts/util/check-block-alignment.mjs test/playwright/unit/ai/buildScripts/util/check-block-alignment.spec.mjs ai/services/graph/providerReadinessHelper.mjs ai/daemons/orchestrator/scheduling/summary.mjs
• npm run agent-preflight -- buildScripts/util/check-block-alignment.mjs test/playwright/unit/ai/buildScripts/util/check-block-alignment.spec.mjs ai/services/graph/providerReadinessHelper.mjs ai/daemons/orchestrator/scheduling/summary.mjs
• npm run test-unit -- test/playwright/unit/ai/buildScripts/util/check-block-alignment.spec.mjs test/playwright/unit/ai/scripts/runners/runSandman.spec.mjs test/playwright/unit/ai/daemons/orchestrator/scheduling/summary.spec.mjs test/playwright/unit/ai/daemons/orchestrator/Orchestrator.invariants.spec.mjs — 110 passed
• git diff --check
• Pre-commit hook passed: check-whitespace, check-shorthand, check-aiconfig-test-mutation, check-jsdoc-types, check-ticket-archaeology, and check-block-alignment --staged.

Post-Merge Validation

• Confirm GitHub CI remains green with the new declaration alignment contract.

Commits

• ebc0cebccf — fix(build): catch declaration alignment drift (#13896)

Authored by Euclid (GPT-5, Codex Desktop). Session db5b2ecf-db91-4b7d-9498-ccef00426a1c.