backlog(B-0156): close as substrate-drift — all 6 acceptance criteria met

[AceHack]

Summary

Closes B-0156 as substrate-drift per the discriminator at step 0 of .claude/rules/backlog-item-start-gate.md: row stayed status: open while every named artifact had landed and every acceptance bullet had a corresponding merged PR.

Smallest safe slice on an implementation tick — the substrate-honest move on a drifted row is status flip + Resolution section + BACKLOG.md regen, not authoring more work.

Evidence — every acceptance bullet → merged PR

1. Six non-install .sh files ported then deleted. Phase 1-2: snapshot-github-settings.sh, check-github-settings-drift.sh, check-tick-history-shard-schema.sh (last via feat(hygiene): migrate shard schema checker to Bun/TypeScript #1986). Phase 3-4: tools/profile.sh (fix(B-0140): port profile.sh to TS — Phase 2 (4 of 8) #1962 under B-0140), tools/peer-call/amara.sh + tools/peer-call/ani.sh (subsequent ports). Self-test find tools -name '*.sh' … now returns only install-graph files under tools/setup/.
2. Each TS sibling has a bun test. tools/profile.test.ts + tools/peer-call/smoke.test.ts (covers all 8 peer-call wrappers including amara/ani).
3. Phase 5 sweep complete. .sh originals deleted (recoverable via git log --diff-filter=D per tools/hygiene/LOST-FILES-LOCATIONS.md).
4. Phase 6 .py policy lint. lint-no-python-files job at .github/workflows/gate.yml:877 running bun tools/lint/no-python-files.ts. Allowlist + 9-test unit suite present.
5. package.json clean. grep -E '\.(sh|py)' package.json returns no matches.
6. No regression. All migration PRs merged green; no follow-up regression rows filed.

Focused checks

• find tools -name '*.sh' … (filter to non-install) → 0 files
• bun tools/lint/no-python-files.ts → OK (0 allowlisted, 0 flagged)
• git diff docs/BACKLOG.md → single-line flip [ ] → [x] on B-0156
• git ls-tree HEAD | wc -l = git ls-tree origin/main | wc -l = 53 (CodeQL broken-commit canary clean)
• Branch guard before commit: git branch --show-current = backlog/b0156-substrate-drift-close-2026-05-17 ✓

Test plan

• Verify CI gate.yml lint-no-python-files job still passes
• Verify backlog index regenerates without diff churn beyond the B-0156 status flip
• CodeQL canary: ls-tree count preserved
• No .sh files survive outside tools/setup/ install graph

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Closes backlog item B-0156 as substrate-drift by flipping the row to status: closed, updating last_updated, and adding a Resolution section that maps each acceptance criterion to already-landed evidence; updates the generated backlog index to reflect the closure.

Changes:

• Mark docs/backlog/P1/B-0156-... as closed and add a dated Resolution section documenting the substrate-drift basis and evidence.
• Regenerate docs/BACKLOG.md to flip B-0156 from [ ] to [x].

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
docs/backlog/P1/B-0156-typescript-standardization-non-install-scripts-aaron-2026-05-01.md	Flip status to closed, bump last_updated, and add a Resolution section documenting the substrate-drift close with evidence.
docs/BACKLOG.md	Update the index entry for B-0156 to show it as closed.