server: add POST bounds get method by list of ids

server/src/gis/gis.service.ts

@@ -64,6 +64,50 @@ export class GisService {
         }
     }
 
+    async getBoundsByEntityTypeAndList(
+        entity_type: 'region' | 'district' | 'city',
+        list: number[],
+    ): Promise<any[]> {
+        if (!list || list.length === 0) {
+            throw new NotFoundException('No entity IDs provided');
+        }
+
+        // Build placeholders (?, ?, ?) for SQLite IN clause
+        const placeholders = list.map(() => '?').join(', ');
+
+        const result = await this.dataSource.query(
+            `
+            SELECT entity_id, entity_type, geometry 
+            FROM bounds
+            WHERE entity_type = ?
+            AND entity_id IN (${placeholders})
+            `,
+            [entity_type, ...list],
+        );
+
+        if (!Array.isArray(result) || result.length === 0) {
+            throw new NotFoundException('Not found');
+        }
+
+        return result.map(
+            (bound: {
+                id: string;
+                entity_id: number;
+                entity_type: string;
+                geometry: string;
+                published_at: string;
+                deleted_at: string | null;
+            }) => ({
+                ...(JSON.parse(bound.geometry)),
+                properties: {
+                    id: bound.id,
+                    entity_id: bound.entity_id,
+                    entity_type: bound.entity_type,
+                },
+            }),
+        );
+    }
+
     async getImages(offset: number, limit: number, city_id: number): Promise<any[]> {
         const result = await this.emsDataSource.query(`
             SELECT * FROM images