feat(rest): add live_logs_enabled property in logs output (#705)

Author: jlemesh

docs/openapi.json

@@ -2637,6 +2637,7 @@
             "description": "Request succeeded. Info about a workflow, including the status is returned.",
             "examples": {
               "application/json": {
+                "live_logs_enabled": true,
                 "logs": "<Workflow engine log output>",
                 "user": "00000000-0000-0000-0000-000000000000",
                 "workflow_id": "256b25f4-4cfb-4684-b7a8-73872ef455a1",
@@ -2645,6 +2646,9 @@
             },
             "schema": {
               "properties": {
+                "live_logs_enabled": {
+                  "type": "boolean"
+                },
                 "logs": {
                   "type": "string"
                 },

reana_server/rest/workflows.py

@@ -883,13 +883,16 @@ def get_workflow_logs(workflow_id_or_name, user, **kwargs):  # noqa
                 type: string
               user:
                 type: string
+              live_logs_enabled:
+                type: boolean
           examples:
             application/json:
               {
                 "workflow_id": "256b25f4-4cfb-4684-b7a8-73872ef455a1",
                 "workflow_name": "mytest.1",
                 "logs": "<Workflow engine log output>",
-                "user": "00000000-0000-0000-0000-000000000000"
+                "user": "00000000-0000-0000-0000-000000000000",
+                "live_logs_enabled": true
               }
         400:
           description: >-