Cancel session background processes

src/bash_bg_store.py

@@ -156,6 +156,24 @@ class BashBgStore:
             ).fetchall()
             return [dict(row) for row in rows]
 
+    def list_active_for_session(
+        self,
+        account_key: str,
+        session_id: str,
+    ) -> list[dict[str, Any]]:
+        with self._connect() as conn:
+            rows = conn.execute(
+                """
+                select * from bash_bg_tasks
+                where account_key = ?
+                  and session_id = ?
+                  and status = 'running'
+                order by started_at desc
+                """,
+                (account_key, session_id),
+            ).fetchall()
+            return [dict(row) for row in rows]
+
     def get(self, task_id: str) -> dict[str, Any] | None:
         with self._connect() as conn:
             row = conn.execute(