Mathias ea9518e712 feat(graphstore): M1 add tier + topic columns to brain_entities (infra#72) ...

Schema-only change. DDL adds tier + topic on fresh tables and uses
ADD COLUMN IF NOT EXISTS on existing tables (idempotent across pod
restarts). New conditional indexes match the wing/hall pattern.

No behavior change in this commit — UpsertEntity still writes only
the original columns; tier + topic stay '' on every row. M2 plumbs
the parser through. The empty default means existing queries are
untouched until the rest of the chain lands.

Part of infra#72 — brain DIKW tier redesign.

2026-05-25 07:17:39 +02:00

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