/**
 * BRAIN timeline wire shapes.
 *
 * Canonical home for the parameters and result types of the public
 * `timelineBrain` operation — Layer 2 of CLEO's 3-layer BRAIN retrieval
 * pattern (search → timeline → fetch). Surfaces chronological neighbors
 * around an anchor entry so an agent can reconstruct the surrounding
 * memory context cheaply.
 *
 * Promoted from `packages/core/src/memory/brain-retrieval.ts` to
 * `@cleocode/contracts` in Phase 0e of SG-ARCH-SOLID
 * (E-CONTRACTS-FOUNDATION). `BrainAnchor` is co-located here because it
 * is the only `brain-row-types.ts` shape that escapes the core boundary
 * via `TimelineBrainResult`; `packages/core/src/memory/brain-row-types.ts`
 * continues to re-export it for internal callers.
 *
 * @since SG-ARCH-SOLID Saga T9831 · E-CONTRACTS-FOUNDATION T9832 · T9956 (Phase 0e)
 * @see Layer 1: {@link ./search.ts}
 * @see Layer 3: {@link ./fetch.ts}
 */
export {};
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