refactor(bruno): reorganize file structure from bruno-yaml to flat bruno directory

- Move all files from bruno-yaml/* to bruno/*
- Maintains existing directory structure within categories
- Updates bruno/user/auth files with OAuth2 refresh token flow
- Updates bruno/user/profile files for user profile management
- Adds bruno/dashboard/ directory with dashboard API tests
- Preserves all existing test scenarios and OpenCollection YAML format
- No functional changes - file reorganization only

bruno/dashboard/create-collection-with-dashboard.yml

@@ -0,0 +1,38 @@
+info:
+  name: Create Collection with Dashboard
+  type: http
+  seq: 4
+http:
+  method: POST
+  url: '{{base_url}}/api/collections'
+  auth: inherit
+runtime:
+  scripts:
+  - type: tests
+    code: "test(\"creates collection successfully\", function() {\n    expect(res.status).to.eql(201);"
+
+docs: |-
+  Create a new collection with dashboard visibility enabled.
+  
+    **Endpoint**: POST /api/collections
+    **Auth**: Required (Bearer token)
+  
+    ## Request Body
+  
+    | Field | Type | Required | Description |
+    |-------|------|----------|-------------|
+    | name | string | Yes | Collection name |
+    | description | string | No | Collection description |
+    | color | string | No | Hex color code |
+    | icon | string | No | Icon emoji or name |
+    | show_on_dashboard | boolean | No | Show on dashboard (default: false) |
+  
+    ## Example Request
+  
+    ```json
+    {
+      "name": "My Favorites",
+      "description": "My favorite books",
+      "color": "#FF5733",
+      "icon": "⭐",
+      "show_on_dashboard": true

bruno/dashboard/get-dashboard-sections.yml

@@ -0,0 +1,52 @@
+info:
+  name: Get Dashboard Sections
+  type: http
+  seq: 1
+http:
+  method: GET
+  url: '{{base_url}}/api/dashboard/sections'
+  auth: inherit
+  body:
+    type: none
+runtime:
+  scripts:
+  - type: tests
+    code: "test(\"status must be 200 with auth\", function() {\n    expect(res.status).to.eql(200);"
+
+docs: |-
+  Get all dashboard sections for a specific library.
+  
+    **Endpoint**: GET /api/dashboard/sections
+    **Auth**: Required (Bearer token via auth: inherit)
+  
+    ## Query Parameters
+  
+    | Parameter | Type | Required | Description |
+    |-----------|------|----------|-------------|
+    | library_id | string | Yes | Library UUID |
+  
+    ## Response
+  
+    Returns array of sections including:
+    - Smart sections (continue-reading, in-progress, recently-added, etc.)
+    - User collections marked with show_on_dashboard: true
+  
+    ## Section Types
+  
+    | Type | Description |
+    |------|-------------|
+    | smart | Auto-generated sections based on user activity |
+    | collection | User-created collections with dashboard enabled |
+  
+    ## Example Response
+  
+    ```json
+    {
+      "sections": [
+        {
+          "id": "continue-reading",
+          "type": "smart",
+          "title": "Continue Reading",
+          "icon": "📖",
+          "items": [...],
+          "view_all_url": "/section/continue-reading"

bruno/dashboard/get-sections-by-library.yml

@@ -0,0 +1,30 @@
+info:
+  name: Get Dashboard Sections by Library
+  type: http
+  seq: 3
+http:
+  method: GET
+  url: '{{base_url}}/api/dashboard/sections'
+  auth: inherit
+runtime:
+  scripts:
+  - type: tests
+    code: "test(\"status must be 200\", function() {\n    expect(res.status).to.eql(200);"
+
+docs: |-
+  Get all dashboard sections for a specific library.
+  
+    **Endpoint**: GET /api/dashboard/sections
+    **Auth**: Required (Bearer token)
+  
+    ## Query Parameters
+  
+    | Parameter | Type | Required | Description |
+    |-----------|------|----------|-------------|
+    | library_id | string | Yes | Library UUID |
+  
+    ## Response
+  
+    Returns array of sections including:
+    - Smart sections (continue-reading, in-progress, recently-added, etc.)
+    - User collections marked for dashboard

bruno/dashboard/update-collection-visibility.yml

@@ -0,0 +1,17 @@
+info:
+  name: Update Collection Dashboard Visibility
+  type: http
+  seq: 5
+http:
+  method: PUT
+  url: '{{base_url}}/api/collections/{{collection_id}}'
+  auth: inherit
+runtime:
+  scripts:
+  - type: tests
+    code: "test(\"updates collection successfully\", function() {\n    expect(res.status).to.eql(200);"
+
+docs: |-
+  Update collection settings including dashboard visibility.
+  
+    **Endpoint**: PUT /api/collections/{id

bruno/dashboard/update-preferences.yml

@@ -0,0 +1,36 @@
+info:
+  name: Update Dashboard Preferences
+  type: http
+  seq: 2
+http:
+  method: POST
+  url: '{{base_url}}/api/dashboard/preferences'
+  auth: inherit
+runtime:
+  scripts:
+  - type: tests
+    code: "test(\"status must be 200 with valid request\", function() {\n    expect(res.status).to.eql(200);"
+
+docs: |-
+  Update dashboard preferences for the authenticated user.
+  
+    **Endpoint**: POST /api/dashboard/preferences
+    **Auth**: Required (Bearer token)
+  
+    ## Request Body
+  
+    | Field | Type | Required | Description |
+    |-------|------|----------|-------------|
+    | library_id | string | Yes | Library UUID |
+    | hidden_sections | array | No | Section IDs to hide |
+    | section_order | array | No | Section IDs in custom order |
+    | items_per_section | int | No | Items to show per section (10-50) |
+  
+    ## Example Request
+  
+    ```json
+    {
+      "library_id": "cc23c3a7-f8fb-451a-a78d-2a16df1b725a",
+      "hidden_sections": ["recently-added"],
+      "section_order": ["continue-reading", "in-progress"],
+      "items_per_section": 25