test(conflict-guards): pin the recursive declared-conflicts check

tests/fixtures/recursive-conflicts/items/0002-grand/spec.md

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+---
+feature: 0002-grand
+phase: spec
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+---
+
+# Fixture — top-level `0002-grand` decoy
+
+A committed test fixture, not a real work item. It is a top-level item whose name
+collides with a bare `MMMM-slug` token used below the root, so the guard can prove
+sibling-first resolution prefers the depth-2 parent's row over this top-level
+decoy.

tests/fixtures/recursive-conflicts/items/0009-solo/spec.md

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+---
+feature: 0009-solo
+phase: spec
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+---
+
+# Fixture — top-level `0009-solo` root fallback
+
+A committed test fixture, not a real work item. It is the root-fallback target for
+a bare `MMMM-slug` below the root that matches no sibling row.

tests/fixtures/recursive-conflicts/items/9201-root-a/0001-nested/0002-grand/design.md

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+---
+feature: 9201-root-a/0001-nested/0002-grand
+phase: design
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+conflicts-with: "docs/workflow.md"
+---
+
+# Design — Fixture drift/union child
+
+A committed test fixture. Its own `conflicts-with` value is `docs/workflow.md`
+while its parent row declares `docs/customization.md`; both are present and
+unequal, so the declared set is their union and the guard reports a declaration
+discrepancy.

tests/fixtures/recursive-conflicts/items/9201-root-a/0001-nested/0003-shipped/ship.md

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+---
+feature: 9201-root-a/0001-nested/0003-shipped
+phase: ship
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+---
+
+# Ship record — Fixture shipped child
+
+A committed test fixture, not a real work item. Its presence is the shipped
+signal: the guard proves a shipped entity still resolves as a target but is
+excluded as a conflict counterpart.

tests/fixtures/recursive-conflicts/items/9201-root-a/0001-nested/0004-refs/design.md

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+---
+feature: 9201-root-a/0001-nested/0004-refs
+phase: design
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+conflicts-with: "9201-root-a/0001-nested/0001-leaf, tests/fixtures, 9201-root-a/0001-nested/0003-shipped"
+---
+
+# Design — Fixture recursive-reference child
+
+A committed test fixture. Its targets pin the recursive reference grammar: a
+three-segment canonical reference resolves to the fixture item at that path, a
+non-reference token (`tests/fixtures`) resolves as a surface path, and a shipped
+item's reference still resolves even though it is excluded as a counterpart.

tests/fixtures/recursive-conflicts/items/9201-root-a/0001-nested/0005-precedence/design.md

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+---
+feature: 9201-root-a/0001-nested/0005-precedence
+phase: design
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+conflicts-with: "0002-grand, 0009-solo, 9203-shared"
+---
+
+# Design — Fixture sibling-first child
+
+A committed test fixture. `0002-grand` names a sibling row of its immediate
+parent and so resolves to that sibling, not the same-named top-level item;
+`0009-solo` and `9203-shared` match no sibling row and fall to the root fallback.

tests/fixtures/recursive-conflicts/items/9201-root-a/0001-nested/0006-bad/design.md

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+---
+feature: 9201-root-a/0001-nested/0006-bad
+phase: design
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+conflicts-with: "../escape, /abs.md, docs/*.md, 9999-nope, docs/no-such-file.md, 9201-root-a/0001-nested/0006-bad, "
+---
+
+# Design — Fixture malformed and unresolved targets
+
+A committed test fixture. Every target is unresolved and reported: `../escape`
+traverses, `/abs.md` is absolute, `docs/*.md` is a glob, `9999-nope` resolves to
+no sibling row and no item, `docs/no-such-file.md` resolves to no repository
+path, the self-reference is malformed, and the trailing empty token is blank.

tests/fixtures/recursive-conflicts/items/9201-root-a/0001-nested/manifest.md

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+---
+feature: 9201-root-a/0001-nested
+phase: manifest
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+---
+
+# Manifest — Recursive fixture nested decomposing child
+
+## Initiative
+
+A committed test fixture, not a real work item. This depth-2 directory itself
+holds a manifest, so it is both an entity (from `9201-root-a`'s row) and the
+source of further entities keyed by their full canonical reference. Its rows
+exercise sibling-first resolution below the root, the recursive reference
+grammar, the own ∪ parent-cell union and its drift, shipped-counterpart
+exclusion, and malformed/unresolved reporting.
+
+## Assumptions
+
+- The fixture is read-only committed test data; it is never shipped and never
+  executed by `/status`.
+
+## Children
+
+| Local id | Title | Scope | Depends on | conflicts-with | Canonical reference |
+| -------- | ----- | ----- | ---------- | -------------- | ------------------- |
+| 0001-leaf | Silent leaf | fixture | — | — | 9201-root-a/0001-nested/0001-leaf |
+| 0002-grand | Drift/union child | fixture | — | docs/customization.md | 9201-root-a/0001-nested/0002-grand |
+| 0003-shipped | Shipped child | fixture | — | docs/workflow.md | 9201-root-a/0001-nested/0003-shipped |
+| 0004-refs | Recursive-reference child | fixture | — | — | 9201-root-a/0001-nested/0004-refs |
+| 0005-precedence | Sibling-first child | fixture | — | — | 9201-root-a/0001-nested/0005-precedence |
+| 0006-bad | Malformed-target child | fixture | — | — | 9201-root-a/0001-nested/0006-bad |
+
+## Sequencing
+
+1. 0001-leaf
+2. 0002-grand
+3. 0003-shipped
+4. 0004-refs
+5. 0005-precedence
+6. 0006-bad
+
+## Open issues
+
+- None. The fixture is deliberate, acyclic test data.

tests/fixtures/recursive-conflicts/items/9201-root-a/0003-legacy/manifest.md

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+---
+feature: 9201-root-a/0003-legacy
+phase: manifest
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+---
+
+# Manifest — Recursive fixture legacy (5-column) nested child
+
+## Initiative
+
+A committed test fixture, not a real work item. It is a depth-2 decomposing child
+that carries the legacy five-column `Children` header (no `conflicts-with`
+column), so the guard can prove an absent column is treated as no declarations at
+depth, not only at the top level, while the child itself remains an entity.
+
+## Assumptions
+
+- The fixture is read-only committed test data; it is never shipped and never
+  executed by `/status`.
+
+## Children
+
+| Local id | Title | Scope | Depends on | Canonical reference |
+| -------- | ----- | ----- | ---------- | ------------------- |
+| 0001-old | Legacy leaf | fixture | — | 9201-root-a/0003-legacy/0001-old |
+
+## Sequencing
+
+1. 0001-old
+
+## Open issues
+
+- None. The fixture is deliberate, acyclic test data.

tests/fixtures/recursive-conflicts/items/9201-root-a/manifest.md

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+---
+feature: 9201-root-a
+phase: manifest
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+---
+
+# Manifest — Recursive declared-conflict fixture root A
+
+## Initiative
+
+A committed test fixture, not a real work item. Its tree is three levels deep
+(`9201-root-a/0001-nested/...`) so the declared-conflict guard in
+`tests/checks/85-conflict-guards.sh` (`AC23 recursive-*`) can pin the recursive
+`conflicts-with` target grammar and reference-vs-path discriminator, the
+sibling-first-then-root resolution precedence below the root, the own ∪
+parent-cell union and its drift at depth, the pair predicate across levels, and
+malformed/unresolved reporting. It lives under `tests/`, is read-only, and
+allocates no real sequence number.
+
+## Assumptions
+
+- The fixture is read-only committed test data; it is never shipped and never
+  executed by `/status`.
+
+## Children
+
+| Local id | Title | Scope | Depends on | conflicts-with | Canonical reference |
+| -------- | ----- | ----- | ---------- | -------------- | ------------------- |
+| 0001-nested | Nested decomposing child | fixture | — | — | 9201-root-a/0001-nested |
+| 0002-sibling | Silent sibling | fixture | — | — | 9201-root-a/0002-sibling |
+| 0003-legacy | Legacy 5-column decomposing child | fixture | — | — | 9201-root-a/0003-legacy |
+
+## Sequencing
+
+1. 0001-nested
+2. 0002-sibling
+3. 0003-legacy
+
+## Open issues
+
+- None. The fixture is deliberate, acyclic test data.

tests/fixtures/recursive-conflicts/items/9202-root-b/manifest.md

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+---
+feature: 9202-root-b
+phase: manifest
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+---
+
+# Manifest — Recursive declared-conflict fixture root B
+
+## Initiative
+
+A committed test fixture, not a real work item. It is the cross-parent control for
+the recursive declared-conflict guard: its bare `0002-grand` token and the one in
+`9201-root-a/0001-nested` share the same text but resolve to different items, so
+they must not be reported as a shared target.
+
+## Assumptions
+
+- The fixture is read-only committed test data; it is never shipped and never
+  executed by `/status`.
+
+## Children
+
+| Local id | Title | Scope | Depends on | conflicts-with | Canonical reference |
+| -------- | ----- | ----- | ---------- | -------------- | ------------------- |
+| 0002-grand | Silent grand | fixture | — | — | 9202-root-b/0002-grand |
+| 0001-namer | Namer of a silent grand | fixture | — | 0002-grand | 9202-root-b/0001-namer |
+
+## Sequencing
+
+1. 0002-grand
+2. 0001-namer
+
+## Open issues
+
+- None. The fixture is deliberate, acyclic test data.

tests/fixtures/recursive-conflicts/items/9210-surface-shared/design.md

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+---
+feature: 9210-surface-shared
+phase: design
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+conflicts-with: "docs/workflow.md"
+---
+
+# Design — Fixture shared surface target partner
+
+A committed test fixture declaring the same surface path as the depth-3
+drift/union child.

tests/fixtures/recursive-conflicts/items/9210-surface-shared/spec.md

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+---
+feature: 9210-surface-shared
+phase: spec
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+---
+
+# Fixture — shared surface target partner
+
+A committed test fixture, not a real work item. It shares the surface path
+`docs/workflow.md` with a depth-3 entity, so the guard reports a class (a)
+declared conflict across levels.

tests/fixtures/recursive-conflicts/items/9211-names-shared/design.md

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+---
+feature: 9211-names-shared
+phase: design
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+conflicts-with: "9203-shared"
+---
+
+# Design — Fixture shared item target partner
+
+A committed test fixture declaring the same resolved item as the depth-3
+sibling-first child.

tests/fixtures/recursive-conflicts/items/9211-names-shared/spec.md

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+---
+feature: 9211-names-shared
+phase: spec
+status: final
+created: 2026-10-14
+updated: 2026-10-14
+---
+
+# Fixture — shared item target partner
+
+A committed test fixture, not a real work item. It shares the resolved item target
+`9203-shared` with a depth-3 entity, so the guard reports a class (b) declared
+conflict across levels.