docs(srv): update doc for job runs retention period MTA-6398 (#5430)

Author: SamyOubouaziz

pages/serverless-jobs/faq.mdx

@@ -151,6 +151,10 @@ Yes, you can use sensitive data such as API secret keys, passwords, TLS/SSL cert
 Serverless Jobs can only reference secrets stored in the same [region](/secret-manager/concepts/#region).
 </Message>
 
+### How long are job runs stored?
+
+Job runs are retained for a period of 60 days. Refer to the [dedicated troubleshooting page](/serverless-jobs/troubleshooting/cannot-see-old-job-runs/) for more information on how to store job runs for a longer period of time.
+
 ## Network and storage
 
 ### How can I configure access to a Private Network or Virtual Private Cloud (VPC)?

pages/serverless-jobs/how-to/monitor-job.mdx

@@ -42,6 +42,10 @@ Make sure that you have created a Grafana user and [retrieved their username and
       - End date
       - Duration
 
+      <Message type="note">
+      Previous job runs are retained for a duration of 60 days.
+      </Message>
+
 3. From the job overview:
     - Select the **Logs** tab, then click **Open Grafana logs dashboard** to access the logs of the job.
     - Select the **Metrics** tab, then click **Open Grafana metrics dashboard** to access the metrics of the job.

pages/serverless-jobs/reference-content/jobs-limitations.mdx

@@ -19,6 +19,7 @@ This section contains usage limits that apply when using Serverless Jobs.
 | CPU max                       | 6 vCPU     | Job run      |
 | Memory max                    | 16 GB      | Job run      |
 | Timeout                       | 24h        | Job run      |
+| Job runs history              | 60 days    | Job run      |
 
 ## Default values for CPU and memory limits
 

pages/serverless-jobs/troubleshooting/cannot-see-old-job-runs.mdx

@@ -0,0 +1,22 @@
+---
+title: I cannot see old job runs
+description: Solve issues encountered while searching for older entries in the job run history of Serverless Jobs
+tags: job run history logs older previous entries save period deleted
+dates:
+  validation: 2025-08-20
+  posted: 2025-08-20
+---
+
+## Problem
+
+I cannot see previous job runs in the history of my Serverless Job.
+
+## Cause
+
+Serverless Jobs have a retention period of 60 days for job runs history. Older job runs are not visible.
+
+## Possible solutions
+
+You can use the [Scaleway Serverless Jobs API](https://www.scaleway.com/en/developers/api/serverless-jobs/#path-job-runs-list-all-job-runs-with-filters) or the [Scaleway CLI](https://cli.scaleway.com/jobs/#list-all-job-runs-with-filters) to periodically list and save previous job runs for archival purposes.
+
+Refer to the [dedicated documentation](/serverless-jobs/how-to/automate-resources-management/) for more information on how to automatically save job runs on a recurring schedule.

pages/serverless-jobs/troubleshooting/missing-metrics.mdx

@@ -9,7 +9,7 @@ dates:
 
 ## Problem
 
-I can't see metrics partially or totally for my Serverless Job.
+I cannot see metrics partially or totally for my Serverless Job.
 
 ## Cause