feat: initial kysely migration file (#17678)

server/src/migrations/1744910873956-AddMissingIndex.ts

@@ -0,0 +1,13 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+export class AddMissingIndex1744910873956 implements MigrationInterface {
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      `CREATE INDEX IF NOT EXISTS "IDX_geodata_gist_earthcoord" ON "geodata_places" (ll_to_earth_public(latitude, longitude))`,
+    );
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`DROP INDEX "IDX_geodata_gist_earthcoord";`);
+  }
+}