test: lock DB DevOps reuse field in bundled pipeline/template schemas

[cursor]

Description

Adds schema bundle contract coverage for the upstream reuse field introduced in the auto-sync harness schemas PR (#823).

Triggered by: chore/sync-schemas (#823) — upstream added reuse on DB DevOps step definitions (Flyway, Liquibase, DB schema apply/rollback, etc.). Without a contract test, a future sync or manual edit could drop the field silently while harness_schema still serves stale bundled YAML.

Risky behavior now covered

• Presence of reuse on seven DB DevOps step definitions in both v0 pipeline and template bundled schemas
• reuse accepts literal strings (non-expression) via not: { pattern: "^<\+.*>.*$" }
• reuse accepts Harness input expressions (<+input>…) with the expected modifier vocabulary (allowedValues, selectOneFrom, and selectManyFrom where upstream defines it)

Test files added/updated

• tests/schemas/schema-bundle-contract.test.ts

Why this reduces regression risk

• harness_schema and entity validation read these bundled snapshots; missing reuse would mislead agents authoring DB DevOps pipelines
• Follows the established upstream-sync contract pattern (K8s rollback steps, agent runtime deploy steps, etc.) so CI fails if synced schemas lose newly added fields

Type of Change

• Bug fix
• New feature
• Refactor
• Documentation
• Other (test coverage)

Checklist

• pnpm test passes (tests/schemas/schema-bundle-contract.test.ts)
• pnpm build passes
• pnpm typecheck passes
• pnpm standards:check passes
• pnpm docs:check passes (not applicable — no registry/tool count changes)

Coding Standards (registry-driven MCP model)

Not applicable — test-only change.

  

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✅ thisrohangupta
❌ cursoragent
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