fix: also store and display "started at" for completed jobs (#33)

backend/src/jobs.rs

@@ -92,6 +92,7 @@ struct CompletedJob {
     parent_job: Option<Uuid>,
     created_by: String,
     created_at: chrono::DateTime<chrono::Utc>,
+    started_at: chrono::DateTime<chrono::Utc>,
     duration: i32,
     success: bool,
     script_hash: Option<ScriptHash>,
@@ -433,7 +434,7 @@ async fn list_jobs(
             "parent_job",
             "created_by",
             "created_at",
-            "null as started_at",
+            "started_at",
             "null as scheduled_for",
             "null as running",
             "script_hash",
@@ -544,6 +545,7 @@ async fn list_completed_jobs(
             "parent_job",
             "created_by",
             "created_at",
+            "started_at",
             "duration",
             "success",
             "script_hash",
@@ -866,6 +868,7 @@ impl From<UnifiedJob> for Job {
                 parent_job: uj.parent_job,
                 created_by: uj.created_by,
                 created_at: uj.created_at,
+                started_at: uj.started_at.unwrap_or(uj.created_at),
                 duration: uj.duration.unwrap(),
                 success: uj.success.unwrap(),
                 script_hash: uj.script_hash,