feat(workbench): persist operational workflows and events

app/infra/db/postgresql/analysis.py

@@ -53,18 +53,52 @@ class AnalysisRepository:
         status: str,
         created_by: str,
         parameters: dict[str, Any],
-    ) -> None:
+    ) -> int:
         with conn.cursor() as cur:
             cur.execute(
                 """
                 UPDATE analysis.runs
-                SET created_by = %s, status = %s, parameters = %s
+                SET created_by = %s, status = %s, parameters = %s,
+                    revision = revision + 1
                 WHERE run_id = %s
+                RETURNING revision
                 """,
                 (created_by, status, Jsonb(parameters), run_id),
             )
-            if cur.rowcount != 1:
+            row = cur.fetchone()
+            if row is None:
                 raise LookupError(f"analysis run {run_id} does not exist")
+            return int(row["revision"])
+
+    @staticmethod
+    def append_run_changed_event_sync(
+        conn: Connection,
+        *,
+        project_id: UUID,
+        run_id: UUID,
+        revision: int,
+        status: str,
+        occurred_at: datetime,
+        results_committed: bool,
+    ) -> None:
+        with conn.cursor() as cur:
+            cur.execute(
+                """INSERT INTO workbench.domain_event_log
+                   (project_id,event_id,topic,aggregate_type,aggregate_id,
+                    aggregate_revision,occurred_at,metadata)
+                   VALUES (%s,%s,'analysis.run.changed','analysis_run',%s,%s,%s,%s)
+                   RETURNING event_seq""",
+                (
+                    project_id, uuid4(), str(run_id), revision, occurred_at,
+                    Jsonb({"run_id": str(run_id), "status": status,
+                           "results_committed": results_committed}),
+                ),
+            )
+            row = cur.fetchone()
+            cur.execute(
+                "SELECT pg_notify('workbench_events', %s)",
+                (f'{project_id}:{row["event_seq"]}',),
+            )
 
     @staticmethod
     def insert_result_sync(