Restructure omni services and add Chatwoot research snapshot

research/chatwoot/swagger/parameters/report_metric.yml

@@ -0,0 +1,13 @@
+in: query
+name: metric
+schema:
+  type: string
+  enum:
+    - conversations_count
+    - incoming_messages_count
+    - outgoing_messages_count
+    - avg_first_response_time
+    - avg_resolution_time
+    - resolutions_count
+required: true
+description: The type of metric