daily-fix: Step 10d pre-merge/pre-push hardening bundle

Overview / Motivation

Auto-filed by /daily 2026-07-04 (route 2: behavior/logic change -> independent review), from the nightly transcript problem sweep.

Goal

Step 10d additions: pre-merge, commit (by explicit path) any dirty .claude/agent-memory/** files; pre-push, run workflow_lint (or the touched-scope subset) on the merge payload so an offender cannot land on main; and name scripts/sync_repo_root.py as the ONLY repo-root sync command wherever a raw pull recipe survives in the skill.

Workflow gap

• Bug observed: Three distinct Step 10d frictions on 2026-07-04: (a) #906's recovery merge aborted on uncommitted .claude/agent-memory/** edits left by review rounds; (b) #931 merged a workflow-lint offender to main, breaking test_workflow_lint on pristine trunk fleet-wide for most of the day (#991/#987/#980/#992/#993 each burned 5-25 min classifying it pre-existing); (c) #967's close-out hand-rolled a repo-root git pull that died with 'fatal: Cannot autostash' instead of using sync_repo_root.py.
• Why it is a workflow gap: the failure originates in the workflow surface / helper named below, not in any one experiment.
• Confidence (emitter): medium

Scope / surfaces

• Primary target: .claude/skills/issue/SKILL.md
• Sessions: 4ea4c2b6 (#906, 16:47 UTC), 23dbea11/a873fc2d/eb927605 (#931 origin, #991/#987 discovery, 17:00-19:10 UTC), e4951a90 (#967, 09:32 UTC).

Constraints / invariants

• Workflow-surface only; scripts/workflow_lint.py --check-asks + --check-references stay green; ruff clean on touched files.

Provenance

• workflow_fix_target: .claude/skills/issue/SKILL.md
• source: /daily 2026-07-04 problem sweep (transcript-mined)