feat(jira): add JIRA_SKIP_UNPARSEABLE_ISSUES to skip unparseable issue pages

When a Jira issue page returns a successful (2xx) status but a body that
cannot be parsed as JSON (e.g. a truncated/partial response), collectIssues
currently fails the entire subtask and aborts the whole Jira collection.

This adds an opt-in config JIRA_SKIP_UNPARSEABLE_ISSUES that, when true,
logs a warning and skips the unparseable page so the rest of the collection
can finish. Default behaviour (false) is unchanged.

Signed-off-by: Murad-Suleymanov <muradsuleymanov868@gmail.com>

Author: Murad-Suleymanov

backend/plugins/jira/tasks/issue_collector.go

@@ -135,6 +135,12 @@ func CollectIssues(taskCtx plugin.SubTaskContext) errors.Error {
 			}
 			err = json.Unmarshal(blob, &data)
 			if err != nil {
+				// By default surface the error so it's visible. Set JIRA_SKIP_UNPARSEABLE_ISSUES=true
+				// to skip unparseable pages instead of failing the collection.
+				if taskCtx.GetConfigReader().GetBool("JIRA_SKIP_UNPARSEABLE_ISSUES") {
+					logger.Warn(err, "skipping unparseable Jira issue page")
+					return nil, nil
+				}
 				return nil, errors.Convert(err)
 			}
 			return data.Issues, nil