feat: add publication

apps/edr-freight-api/src/migrations/3850000000000-Publications.ts

@@ -0,0 +1,44 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+/**
+ * Public document library for the freight portal (PDFs, Markdown write-ups,
+ * PowerPoint decks about the platform), managed from the backoffice. Each row
+ * is one whole file stored in MinIO under `publications/` — a re-upload
+ * replaces the object and the row's file columns, there is no per-version
+ * history table like `support_documents` has.
+ */
+export class Publications3850000000000 implements MigrationInterface {
+  name = 'Publications3850000000000';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`
+      CREATE TABLE IF NOT EXISTS freight.publications (
+        id                uuid PRIMARY KEY DEFAULT uuid_generate_v4(),
+        title             varchar(200) NOT NULL,
+        description       text,
+        category          varchar(60),
+        file_key          varchar(512) NOT NULL,
+        file_name         varchar(255) NOT NULL,
+        file_mime_type    varchar(120) NOT NULL,
+        file_size_bytes   bigint NOT NULL,
+        sort_order        integer NOT NULL DEFAULT 0,
+        published         boolean NOT NULL DEFAULT true,
+        published_at      timestamptz,
+        uploaded_by_id    uuid,
+        created_at        timestamptz NOT NULL DEFAULT now(),
+        updated_at        timestamptz NOT NULL DEFAULT now(),
+        deleted_at        timestamptz
+      )
+    `);
+
+    // Serves the public list: published rows in display order.
+    await queryRunner.query(`
+      CREATE INDEX IF NOT EXISTS idx_publications_published_sort
+        ON freight.publications (published, sort_order)
+    `);
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`DROP TABLE IF EXISTS freight.publications`);
+  }
+}