chore: Update report documentation (#13408)

New API Documentation

GET
/api/v2/accounts/{account_id}/reports/first_response_time_distribution
  - Returns first response time distribution grouped by channel type
- Shows conversation counts in time buckets: 0-1h, 1-4h, 4-8h, 8-24h,
24h+
  - Parameters: since, until (Unix timestamps)

  GET /api/v2/accounts/{account_id}/reports/inbox_label_matrix
  - Returns a matrix of conversation counts for inbox-label combinations
  - Parameters: since, until, inbox_ids[], label_ids[]

  Fixes

  - Removed unused business_hours boolean parameter from
  /api/v2/accounts/{account_id}/summary_reports/channel
- Updated ReDoc script from unstable @next to stable @2.1.5 version to
fix empty swagger page

swagger/definitions/index.yml

@@ -225,6 +225,10 @@ agent_conversation_metrics:
   $ref: './resource/reports/conversation/agent.yml'
 channel_summary:
   $ref: './resource/reports/channel_summary.yml'
+first_response_time_distribution:
+  $ref: './resource/reports/first_response_time_distribution.yml'
+inbox_label_matrix:
+  $ref: './resource/reports/inbox_label_matrix.yml'
 
 contact_detail:
   $ref: ./resource/contact_detail.yml

swagger/definitions/resource/reports/first_response_time_distribution.yml

@@ -0,0 +1,34 @@
+type: object
+description: First response time distribution report grouped by channel type. Shows the count of conversations with first response times in different time buckets.
+additionalProperties:
+  type: object
+  description: First response time distribution for a specific channel type (e.g., Channel::WebWidget, Channel::Api)
+  properties:
+    0-1h:
+      type: number
+      description: Number of conversations with first response time less than 1 hour
+    1-4h:
+      type: number
+      description: Number of conversations with first response time between 1-4 hours
+    4-8h:
+      type: number
+      description: Number of conversations with first response time between 4-8 hours
+    8-24h:
+      type: number
+      description: Number of conversations with first response time between 8-24 hours
+    24h+:
+      type: number
+      description: Number of conversations with first response time greater than 24 hours
+example:
+  Channel::WebWidget:
+    0-1h: 150
+    1-4h: 80
+    4-8h: 45
+    8-24h: 30
+    24h+: 15
+  Channel::Api:
+    0-1h: 75
+    1-4h: 40
+    4-8h: 20
+    8-24h: 10
+    24h+: 5

swagger/definitions/resource/reports/inbox_label_matrix.yml

@@ -0,0 +1,50 @@
+type: object
+description: Inbox-label matrix report showing the count of conversations for each inbox-label combination.
+properties:
+  inboxes:
+    type: array
+    description: List of inboxes included in the report
+    items:
+      type: object
+      properties:
+        id:
+          type: number
+          description: The inbox ID
+        name:
+          type: string
+          description: The inbox name
+  labels:
+    type: array
+    description: List of labels included in the report
+    items:
+      type: object
+      properties:
+        id:
+          type: number
+          description: The label ID
+        title:
+          type: string
+          description: The label title
+  matrix:
+    type: array
+    description: 2D array where matrix[i][j] represents the count of conversations in inboxes[i] with labels[j]
+    items:
+      type: array
+      items:
+        type: number
+example:
+  inboxes:
+    - id: 1
+      name: Website Chat
+    - id: 2
+      name: Email Support
+  labels:
+    - id: 1
+      title: bug
+    - id: 2
+      title: feature-request
+    - id: 3
+      title: urgent
+  matrix:
+    - [10, 5, 3]
+    - [8, 12, 2]