chore: import upstream snapshot with attribution

bootstrap/sql/migrations/native/1.13.1/postgres/schemaChanges.sql

@@ -0,0 +1,40 @@
+-- IntakeForm entity table: per-entity-type governance-required-field configuration
+CREATE TABLE IF NOT EXISTS intake_form_entity (
+  id VARCHAR(36) GENERATED ALWAYS AS ((json ->> 'id')) STORED NOT NULL,
+  name VARCHAR(256) GENERATED ALWAYS AS ((json ->> 'name')) STORED NOT NULL,
+  fqnHash VARCHAR(256) NOT NULL,
+  entityType VARCHAR(64) GENERATED ALWAYS AS ((json ->> 'entityType')) STORED NOT NULL,
+  json JSONB NOT NULL,
+  updatedAt BIGINT GENERATED ALWAYS AS ((json ->> 'updatedAt')::bigint) STORED NOT NULL,
+  updatedBy VARCHAR(256) GENERATED ALWAYS AS ((json ->> 'updatedBy')) STORED NOT NULL,
+  deleted BOOLEAN GENERATED ALWAYS AS ((json ->> 'deleted')::boolean) STORED,
+  PRIMARY KEY (id),
+  UNIQUE (fqnHash),
+  UNIQUE (entityType)
+);
+
+-- ---------------------------------------------------------------------------
+-- Backfill the per-entity `name` index on entity tables that were created
+-- without one. The distributed reindex paginates every entity type with
+-- `... ORDER BY name, id LIMIT 1 OFFSET :n` (EntityRepository.getCursorAtOffset).
+-- Without a `name`-leading index that ORDER BY is a sort that can exhaust
+-- work_mem on large tables; `<table>_name_index(name)` lets the cursor query run
+-- index-only instead. Idempotent via IF NOT EXISTS. Covers only entity tables
+-- that exist as of 1.13.1; later tables get the index in their own migration.
+-- ---------------------------------------------------------------------------
+CREATE INDEX IF NOT EXISTS directory_entity_name_index ON directory_entity (name);
+CREATE INDEX IF NOT EXISTS drive_service_entity_name_index ON drive_service_entity (name);
+CREATE INDEX IF NOT EXISTS file_entity_name_index ON file_entity (name);
+CREATE INDEX IF NOT EXISTS spreadsheet_entity_name_index ON spreadsheet_entity (name);
+CREATE INDEX IF NOT EXISTS worksheet_entity_name_index ON worksheet_entity (name);
+-- learning_resource_entity is intentionally omitted: its `name` is varchar(3072), too
+-- wide to fit a btree index row, and the table is small enough that the reindex cursor
+-- sort is not a concern.
+
+-- Additional pre-1.13.1 entity tables the block above missed. On Postgres only the api_*
+-- tables lacked a leading-`name` index (they had only a `(deleted, name, id)` composite); the
+-- other reindexed tables of this era already have `idx_name_*`. security_service_entity is
+-- omitted: it already has a `UNIQUE (name)` constraint that orders by name.
+CREATE INDEX IF NOT EXISTS api_collection_entity_name_index ON api_collection_entity (name);
+CREATE INDEX IF NOT EXISTS api_endpoint_entity_name_index ON api_endpoint_entity (name);
+CREATE INDEX IF NOT EXISTS api_service_entity_name_index ON api_service_entity (name);