feat(inventory): distinguish physical instances from structural records

api-v3/src/database/migrations/1790087100000-f5-inventory-physical-instance.ts

@@ -0,0 +1,26 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+export class F5InventoryPhysicalInstance1790087100000 implements MigrationInterface {
+  name = 'F5InventoryPhysicalInstance1790087100000';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`
+      ALTER TABLE assets
+      ADD COLUMN is_inventory_instance boolean NOT NULL DEFAULT false
+    `);
+    await queryRunner.query(`
+      CREATE INDEX idx_assets_inventory_instance_active
+      ON assets (is_inventory_instance, information_status)
+      WHERE is_inventory_instance = true
+    `);
+    await queryRunner.query(`
+      COMMENT ON COLUMN assets.is_inventory_instance IS
+      'True only for a concrete inventory instance confirmed/created as a real field object. Structural/context/catalog assets remain false.'
+    `);
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query('DROP INDEX IF EXISTS idx_assets_inventory_instance_active');
+    await queryRunner.query('ALTER TABLE assets DROP COLUMN IF EXISTS is_inventory_instance');
+  }
+}