refactor: Reorganize Bruno requests by role permissions

- Create separate admin folder for admin-only operations
- Move admin endpoints (Create/Update/Delete Ebook, Scanner, Folder Management) to /bruno/admin/
- Add admin dashboard, profile, and library page requests
- Add Register Admin User request with explicit admin role
- Update Register User request to include role field
- Remove empty scanner folder structure

API organization:
- Admin requests: /bruno/admin/ (require admin role)
- User requests: /bruno/user/ (available to all authenticated users)
- Environment: Single {{token}} variable works for both roles

bruno/user/Add Ebook Folder.bru

@@ -1,50 +0,0 @@
-meta {
-  name: Add Ebook Folder
-  type: http
-  seq: 8
-}
-
-post {
-  url: {{base_url}}/api/auth/ebook-folders
-  body: json
-  auth: inherit
-}
-
-body:json {
-  {
-    "folder_path": "/app/uploads"
-  }
-}
-
-settings {
-  encodeUrl: true
-  timeout: 0
-}
-
-docs {
-  ## Add Ebook Folder
-  
-  Adds a new ebook folder for scanning. **Admin only operation.**
-  
-  **Method:** POST
-  
-  **Endpoint:** /api/auth/ebook-folders
-  
-  **Authentication:** Required (Admin role required)
-  
-  **Request Body:**
-  - `folder_path` (string, required): Path to the ebook folder
-  
-  **Response:**
-  - `id` (string): Folder ID
-  - `user_id` (string): Admin user ID
-  - `folder_path` (string): Folder path
-  - `created_at` (string): Creation timestamp
-  
-  **Status Codes:**
-  - 201: Created
-  - 400: Invalid request
-  - 401: Unauthorized
-  - 403: Forbidden (non-admin users)
-  - 409: Folder already exists
-}

bruno/user/Delete Ebook Folder.bru

@@ -1,46 +0,0 @@
-meta {
-  name: Delete Ebook Folder
-  type: http
-  seq: 10
-}
-
-delete {
-  url: {{base_url}}/api/auth/ebook-folders
-  body: json
-  auth: inherit
-}
-
-body:json {
-  {
-    "folder_path": "/app/uploads"
-  }
-}
-
-settings {
-  encodeUrl: true
-  timeout: 0
-}
-
-docs {
-  ## Delete Ebook Folder
-  
-  Removes an ebook folder for the authenticated user.
-  
-  **Method:** DELETE
-  
-  **Endpoint:** /api/auth/ebook-folders
-  
-  **Authentication:** Required
-  
-  **Request Body:**
-  - `folder_path` (string, required): Path to the ebook folder to remove
-  
-  **Response:**
-  - `message` (string): Success message
-  
-  **Status Codes:**
-  - 200: Success
-  - 400: Invalid request
-  - 401: Unauthorized
-  - 500: Internal server error
-}

bruno/user/Get Ebook Folders.bru

@@ -1,38 +0,0 @@
-meta {
-  name: Get Ebook Folders
-  type: http
-  seq: 9
-}
-
-get {
-  url: {{base_url}}/api/auth/ebook-folders
-  body: none
-  auth: inherit
-}
-
-settings {
-  encodeUrl: true
-  timeout: 0
-}
-
-docs {
-  ## Get Ebook Folders
-  
-  Retrieves the list of ebook folders for the authenticated user.
-  
-  **Method:** GET
-  
-  **Endpoint:** /api/auth/ebook-folders
-  
-  **Authentication:** Required
-  
-  **Response:** Array of folder objects
-  - `id` (string): Folder ID
-  - `user_id` (string): User ID
-  - `folder_path` (string): Folder path
-  - `created_at` (string): Creation timestamp
-  
-  **Status Codes:**
-  - 200: Success
-  - 401: Unauthorized
-}

bruno/user/Register Admin User.bru

@@ -0,0 +1,68 @@
+meta {
+  name: Register Admin User
+  type: http
+  seq: 4
+}
+
+post {
+  url: {{base_url}}/api/auth/register
+  body: json
+  auth: inherit
+}
+
+body:json {
+  {
+        "email": "admin@example.com",
+        "username": "admin",
+        "password": "admin123",
+        "first_name": "Admin",
+        "last_name": "User",
+        "role": "admin"
+      }
+}
+
+script:post-response {
+  function onResponse(res) {
+    let data = res.getBody();
+    return bru.setEnvVar("token", data.token, { persist: true });
+  }
+  onResponse(res);
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
+
+docs {
+  ## Register Admin User
+  
+  Creates a new admin user account.
+  
+  **Method:** POST
+  
+  **Endpoint:** /api/auth/register
+  
+   **Request Body:**
+   - `email` (string): Email address
+   - `username` (string): Username
+   - `password` (string): Password
+   - `first_name` (string, optional): First name
+   - `last_name` (string, optional): Last name
+   - `role` (string): Must be "admin"
+  
+  **Response:**
+  - `token` (string): JWT token with admin role
+   - `user` (object): User details
+     - `id` (string): User ID
+     - `email` (string): Email
+     - `username` (string): Username
+     - `theme` (string): User theme preference
+     - `first_name` (string, optional): First name
+     - `last_name` (string, optional): Last name
+     - `role` (string): User role ("admin")
+  
+  **Status Codes:**
+  - 201: Created
+  - 409: User exists
+}

bruno/user/Register User.bru

@@ -16,7 +16,8 @@ body:json {
         "username": "testuser",
         "password": "password123",
         "first_name": "Test",
-        "last_name": "User"
+        "last_name": "User",
+        "role": "user"
       }
 }
 
@@ -48,6 +49,7 @@ docs {
    - `password` (string): Password
    - `first_name` (string, optional): First name
    - `last_name` (string, optional): Last name
+   - `role` (string): User role ("user" or "admin")
   
   **Response:**
   - `token` (string): JWT token
@@ -55,9 +57,10 @@ docs {
      - `id` (string): User ID
      - `email` (string): Email
      - `username` (string): Username
-     - `theme` (string): User theme preference
-     - `first_name` (string, optional): First name
-     - `last_name` (string, optional): Last name
+- `theme` (string): User theme preference
+      - `first_name` (string, optional): First name
+      - `last_name` (string, optional): Last name
+      - `role` (string): User role ("user" or "admin")
   
   **Status Codes:**
   - 201: Created