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/analytics/Get Reading Stats.yml

@@ -0,0 +1,58 @@
+info:
+  name: Get Reading Stats
+  type: http
+  seq: 4
+http:
+  method: GET
+  url: '{{base_url}}/api/analytics/reading-stats'
+  auth: inherit
+  body:
+    type: none
+runtime:
+  scripts:
+  - type: tests
+    code: "test(\"status must be 200\", function() {\n    expect(res.status).to.eql(200);"
+
+docs: |-
+  Get overall reading statistics for the authenticated user.
+  
+    **Endpoint**: GET /api/analytics/reading-stats
+    **Auth**: Required (Bearer token)
+  
+    ## Query Parameters
+  
+    | Parameter | Type | Required | Description |
+    |-----------|------|-----------|-------------|
+    | start_date | string | No | Start date (ISO 8601 format) |
+    | end_date | string | No | End date (ISO 8601 format) |
+  
+    ## Response Fields
+  
+    | Field | Type | Description |
+    |-------|------|-------------|
+    | total_books_read | int | Total books completed |
+    | total_pages_read | int | Total pages read |
+    | total_reading_time_minutes | int | Total reading time in minutes |
+    | completion_rate | float | Average book completion rate (0-1) |
+    | daily_reading_minutes | array | Daily reading time breakdown |
+    | daily_reading_minutes[].date | string | Date (ISO 8601) |
+    | daily_reading_minutes[].minutes | int | Minutes read on that date |
+  
+    ## Example Request
+  
+    ```
+    GET /api/analytics/reading-stats
+    ```
+  
+    ## Example Response
+  
+    ```json
+    {
+      "total_books_read": 12,
+      "total_pages_read": 3450,
+      "total_reading_time_minutes": 5400,
+      "completion_rate": 0.78,
+      "daily_reading_minutes": [
+        {
+          "date": "2026-01-15",
+          "minutes": 45