feat: Add admin ebook CRUD operations to Bruno collection

- Add POST /api/ebooks for creating new ebook entries
- Add PUT /api/ebooks/:id for updating existing ebook metadata
- Add DELETE /api/ebooks/:id for deleting ebooks from database
- Include complete request/response examples with all metadata fields
- Support file path, metadata, and publication information updates

bruno/ebooks/Create Ebook.bru

@@ -0,0 +1,80 @@
+meta {
+  name: Create Ebook
+  type: http
+  seq: 8
+}
+
+post {
+  url: {{base_url}}/api/ebooks
+  body: json
+  auth: inherit
+}
+
+body:json {
+  {
+    "title": "Sample Ebook Title",
+    "author": "Author Name",
+    "isbn": "978-0123456789",
+    "description": "A sample ebook description",
+    "file_path": "/path/to/ebook.epub",
+    "file_size": 1048576,
+    "mime_type": "application/epub+zip",
+    "cover_image_path": "/path/to/cover.jpg",
+    "series": "Sample Series",
+    "series_number": 1,
+    "tags": "fiction,adventure",
+    "asin": "B00EXAMPLE",
+    "date_published": "2023-01-15",
+    "publisher": "Sample Publisher",
+    "contributors": "Contributor Name"
+  }
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
+
+docs {
+  ## Create Ebook
+  
+  Creates a new ebook entry in the database.
+  
+  **Method:** POST
+  
+  **Endpoint:** /api/ebooks
+  
+  **Authentication:** Required (Admin only)
+  
+  **Request Body:** JSON object with:
+  - `title` (string, required): Ebook title (1-500 characters)
+  - `author` (string, optional): Author name
+  - `isbn` (string, optional): ISBN number
+  - `description` (string, optional): Ebook description
+  - `file_path` (string, required): Path to ebook file
+  - `file_size` (integer, required): File size in bytes
+  - `mime_type` (string, required): MIME type of ebook
+  - `cover_image_path` (string, optional): Path to cover image
+  - `series` (string, optional): Series name
+  - `series_number` (integer, optional): Number in series
+  - `tags` (string, optional): Comma-separated tags
+  - `asin` (string, optional): Amazon ASIN
+  - `date_published` (string, optional): Publication date (YYYY-MM-DD)
+  - `publisher` (string, optional): Publisher name
+  - `contributors` (string, optional): Contributors list
+  
+  **Response:** Complete ebook object with all fields
+  
+  **Status Codes:**
+  - 201: Ebook created successfully
+  - 400: Bad request (invalid data)
+  - 401: Unauthorized
+  - 403: Forbidden (admin access required)
+  - 500: Internal server error
+  
+  **Features:**
+  - Admin-only endpoint for creating ebooks
+  - Full validation of required fields
+  - Supports all ebook metadata fields
+  - Associates ebook with creating admin user
+}

bruno/ebooks/Delete Ebook.bru

@@ -0,0 +1,53 @@
+meta {
+  name: Delete Ebook
+  type: http
+  seq: 10
+}
+
+delete {
+  url: {{base_url}}/api/ebooks/{{ebook_id}}
+  body: none
+  auth: inherit
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
+
+docs {
+  ## Delete Ebook
+  
+  Deletes an ebook from the database.
+  
+  **Method:** DELETE
+  
+  **Endpoint:** /api/ebooks/:id
+  
+  **Authentication:** Required (Admin only)
+  
+  **Path Parameters:**
+  - `id` (string): Ebook ID (UUID)
+  
+  **Response:** No content (204) or success message
+  
+  **Status Codes:**
+  - 204: Ebook deleted successfully (no content)
+  - 400: Bad request (invalid ID format)
+  - 401: Unauthorized
+  - 403: Forbidden (admin access required)
+  - 404: Ebook not found
+  - 500: Internal server error
+  
+  **Features:**
+  - Admin-only endpoint for deleting ebooks
+  - Permanent deletion (cannot be undone)
+  - Cascades to delete related data (reading progress, ratings)
+  - Requires valid UUID format for ebook ID
+  
+  **Important Notes:**
+  - This is a destructive operation
+  - All user reading progress for this ebook will be lost
+  - All user ratings for this ebook will be lost
+  - Use with caution
+}

bruno/ebooks/Update Ebook.bru

@@ -0,0 +1,78 @@
+meta {
+  name: Update Ebook
+  type: http
+  seq: 9
+}
+
+put {
+  url: {{base_url}}/api/ebooks/{{ebook_id}}
+  body: json
+  auth: inherit
+}
+
+body:json {
+  {
+    "title": "Updated Ebook Title",
+    "author": "Updated Author Name",
+    "isbn": "978-0123456789",
+    "description": "Updated ebook description",
+    "cover_image_path": "/path/to/updated_cover.jpg",
+    "series": "Updated Series",
+    "series_number": 2,
+    "tags": "fiction,adventure,updated",
+    "asin": "B00EXAMPLE2",
+    "date_published": "2023-02-15",
+    "publisher": "Updated Publisher",
+    "contributors": "Updated Contributor Name"
+  }
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
+
+docs {
+  ## Update Ebook
+  
+  Updates an existing ebook's metadata.
+  
+  **Method:** PUT
+  
+  **Endpoint:** /api/ebooks/:id
+  
+  **Authentication:** Required (Admin only)
+  
+  **Path Parameters:**
+  - `id` (string): Ebook ID (UUID)
+  
+  **Request Body:** JSON object with:
+  - `title` (string, required): Updated ebook title (1-500 characters)
+  - `author` (string, optional): Updated author name
+  - `isbn` (string, optional): Updated ISBN number
+  - `description` (string, optional): Updated ebook description
+  - `cover_image_path` (string, optional): Updated path to cover image
+  - `series` (string, optional): Updated series name
+  - `series_number` (integer, optional): Updated number in series
+  - `tags` (string, optional): Updated comma-separated tags
+  - `asin` (string, optional): Updated Amazon ASIN
+  - `date_published` (string, optional): Updated publication date (YYYY-MM-DD)
+  - `publisher` (string, optional): Updated publisher name
+  - `contributors` (string, optional): Updated contributors list
+  
+  **Response:** Updated ebook object with all fields
+  
+  **Status Codes:**
+  - 200: Ebook updated successfully
+  - 400: Bad request (invalid data or ID)
+  - 401: Unauthorized
+  - 403: Forbidden (admin access required)
+  - 404: Ebook not found
+  - 500: Internal server error
+  
+  **Features:**
+  - Admin-only endpoint for updating ebook metadata
+  - Updates only provided fields, preserves others
+  - Full validation of all fields
+  - Cannot update file_path, file_size, or mime_type (file properties)
+}