feat: add core backend modules, inventory services, and patch scripts for AI Pharmacy API

delete_inventory.js

@@ -0,0 +1,23 @@
+const { pool } = require('./src/db/pool');
+
+async function deleteInventory() {
+  const client = await pool.connect();
+  try {
+    await client.query('BEGIN');
+    
+    await client.query('DELETE FROM inventory_adjustments;');
+    await client.query('DELETE FROM stock_movements;');
+    await client.query('DELETE FROM batches;');
+    
+    await client.query('COMMIT');
+    console.log("Successfully deleted all inventory data (batches, stock_movements, inventory_adjustments).");
+  } catch (err) {
+    await client.query('ROLLBACK');
+    console.error("Error deleting data:", err);
+  } finally {
+    client.release();
+    process.exit();
+  }
+}
+
+deleteInventory();