chore(bruno): add multi-library dev setup with scan-all and folder requests

Update NewDevDBSetup collection to create Ebook, Comic, and Manga
libraries with separate IDs (ebook_library_id, comic_library_id,
manga_library_id) instead of a single library_id.

- Fix CreateComicLibrary and CreateMangaLibrary to use correct
  names, descriptions, and types instead of duplicating Ebook values
- Update NewDB.sh to run the full setup sequence: register user,
  create all three libraries, add folders, then scan all
- Add AddEbookLibraryFolder, AddComicLibraryFolder, and
  AddMangaLibraryFolder requests with per-type subfolder paths
- Add ScanAllLibraries request using bru.sendRequest() to scan
  each library sequentially via the /api/scanner/scan endpoint
- Update Get Libraries (Admin) to save all three library IDs
- Update List Media Items requests to use ebook_library_id
- Rename library_id to ebook_library_id in Create Library and
  Add Library Folder requests
- Add comic_library_id and manga_library_id to environment

bruno/NewDevDBSetup/AddComicLibraryFolder.yml

@@ -0,0 +1,30 @@
+info:
+  name: AddComicLibraryFolder
+  type: http
+  seq: 6
+
+http:
+  method: POST
+  url: "{{base_url}}/api/libraries/{{comic_library_id}}/folders"
+  body:
+    type: json
+    data: |-
+      {
+        "folder_path": "{{library_folder}}/Comics"
+      }
+  auth: inherit
+
+settings:
+  encodeUrl: true
+  timeout: 0
+  followRedirects: true
+  maxRedirects: 5
+
+docs: |-
+  ## Add Library Folder
+    
+    Adds a new folder path to a library for media scanning and indexing.
+    
+    **Method:** POST
+    
+    **Endpoint:** /api/libraries/{id}