feat: automate library_id extraction from Get Libraries API response

- Update library_id in Bookhoard environment configuration
- Add post-response script to Get Libraries (Admin) endpoint
- Script automatically extracts and saves first library_id from response
- Enables seamless API testing without manual variable updates

bruno/library/Get Libraries (Admin).yml

@@ -2,15 +2,43 @@ info:
   name: Get Libraries (Admin)
   type: http
   seq: 1
+
 http:
   method: GET
-  url: '{{base_url}}/api/libraries'
-  auth: inherit
-  body:
-    type: none
+  url: "{{base_url}}/api/libraries"
   headers:
-  - key: Content-Type
-    value: application/json
+    - name: ""
+      value: application/json
+  auth: inherit
+
+runtime:
+  scripts:
+    - type: after-response
+      code: |-
+        function onResponse(res) {
+          try {
+            const responseBody = res.getBody();
+            const id = responseBody.data[0].id;
+
+            if (id) {
+              bru.setEnvVar("library_id", id, { persist: true });
+              console.log("Library ID saved:", id);
+            }
+
+           if (!id) {
+              console.log("No id found in response.");
+            }
+          } catch (error) {
+            console.error("Error in post-response script:", error.message);
+          }
+        }
+        onResponse(res);
+
+settings:
+  encodeUrl: true
+  timeout: 0
+  followRedirects: true
+  maxRedirects: 5
 
 docs: |-
   ## Get Libraries (Admin)