feat(testing): enhance Bruno collection with library automation

Add environment variable persistence for library and folder IDs in
Bruno API collection scripts. Create Library and Add Library Folder
endpoints now automatically save their respective IDs to the
environment for use in subsequent requests.

bruno/environments/Bookhoard.yml

@@ -13,9 +13,9 @@ variables:
   - name: note_id
     value: 7710a602-g29b-61d4-c716-446655440002
   - name: library_id
-    value: fc52e057-2746-4995-b98f-f004e9d55f40
+    value: 10e2bab6-9029-4892-af12-f888752356c0
   - name: job_id
-    value: 3598f683-d5a1-4539-9310-1d2dce87c170
+    value: 709e0d8e-b866-496c-b260-a59ab8e2014c
   - name: rating
     value: "5"
   - name: is_visible
@@ -35,4 +35,4 @@ variables:
   - name: collection_id
     value: 412c03c3-0843-4bd4-b764-cc9457bb9df2
   - name: library_folder_id
-    value: b9d201eb-e77b-4f8f-b5dc-3b53f6013fcc
+    value: da1f9d91-0c4c-40cc-a050-86f795dfc967

bruno/library/Add Library Folder.yml

@@ -6,9 +6,6 @@ info:
 http:
   method: POST
   url: "{{base_url}}/api/libraries/{{library_id}}/folders"
-  headers:
-    - name: ""
-      value: application/json
   body:
     type: json
     data: |-

bruno/library/Create Library.yml

@@ -6,9 +6,6 @@ info:
 http:
   method: POST
   url: "{{base_url}}/api/libraries"
-  headers:
-    - name: ""
-      value: application/json
   body:
     type: json
     data: |-