refactor(bruno): migrate API tests to Bruno DSL format

- Convert all existing .bru files from JSON to Bruno DSL format
- Remove obsolete files (conflicts/api.bru, kobo/Kobo Initialization.bru)
- Update auth configuration to use 'inherit' instead of explicit bearer tokens
- Add comprehensive documentation to all test files
- Improve test scripts with proper assertions and error handling

bruno/conflicts/Resolve Conflict.bru

@@ -7,10 +7,10 @@ meta {
 post {
   url: {{baseUrl}}/api/conflicts/{{conflict_id}}/resolve
   body: json
-  auth: bearer
+  auth: inherit
 }
 
-headers: {
+headers {
   Authorization: Bearer {{token}}
   Content-Type: application/json
 }
@@ -24,25 +24,63 @@ body:json {
   }
 }
 
-docs: {
-  Resolves a sync conflict by choosing which source to use.
-  
-  Path Parameters:
-  - conflict_id: UUID of the conflict to resolve
-  
-  Request Body:
-  - winner: Source to choose (koreader, kobo, web, manual)
-  - manual_data: Required if winner is "manual" - contains the merged data
-  - apply_to_all_future_conflicts: Whether to auto-resolve future conflicts from this source
-  - reason: Optional explanation for the resolution
-  
-  Example request body for choosing koreader:
+settings {
+  encodeUrl: true
+  timeout: 0
+}
+
+docs {
+  ## Resolve Conflict
+
+  Resolves a sync conflict by choosing which source to use for the conflicting data.
+
+  **Method:** POST
+
+  **Endpoint:** /api/conflicts/{conflict_id}/resolve
+
+  **Authentication:** Bearer token
+
+  **Path Parameters:**
+  - `conflict_id` (string): Conflict UUID
+
+  **Request Body:**
+  - `winner` (string): Source to choose
+    - `koreader`: Use KOReader device data
+    - `kobo`: Use Kobo device data
+    - `web`: Use web interface data
+    - `manual`: Use custom merged data (requires manual_data)
+  - `manual_data` (object, optional): Required if winner is "manual"
+    - `percentage` (number): Reading progress percentage (0-1)
+    - `epubcfi` (string): EPUB Canonical Fragment Identifier
+    - `chapter` (number, optional): Chapter number
+    - `page` (number, optional): Page number
+  - `apply_to_all_future_conflicts` (boolean): Auto-resolve future conflicts from this source
+  - `reason` (string, optional): Explanation for the resolution choice
+
+  **Response:**
+  - `conflict_resolved` (boolean): True if successful
+  - `applied_to` (string): What was updated (progress, annotations, etc.)
+  - `devices_synced` (array): List of device IDs that were notified
+
+  **Status Codes:**
+  - 200: Success - conflict resolved
+  - 400: Invalid request data
+  - 401: Unauthorized
+  - 404: Conflict not found
+  - 500: Internal server error
+
+  **Example - Choose KOReader:**
+  ```json
   {
     "winner": "koreader",
+    "manual_data": null,
+    "apply_to_all_future_conflicts": false,
     "reason": "More recent progress"
   }
-  
-  Example request body for manual resolution:
+  ```
+
+  **Example - Manual Override:**
+  ```json
   {
     "winner": "manual",
     "manual_data": {
@@ -50,17 +88,16 @@ docs: {
       "epubcfi": "epubcfi(/6/4/2:20)",
       "chapter": 3
     },
+    "apply_to_all_future_conflicts": false,
     "reason": "Custom merged position"
   }
-  
-  Response includes:
-  - conflict_resolved: true if successful
-  - applied_to: What was updated (progress, annotations)
-  - devices_synced: List of device IDs that were notified
-  
-  After resolution:
-  - The winning data is applied to the reading progress
-  - All connected devices are notified via WebSocket
+  ```
+
+  **After Resolution:**
+  - Winning data is applied to reading progress
+  - All connected devices notified via WebSocket
   - Conflict status changes to "user_resolved"
-  - Resolution data is stored for audit trail
+  - Resolution stored for audit trail
+
+  **Note:** Manual override allows precise control when automatic resolution doesn't capture the correct state.
 }