feat: 增加失败任务重试与 CUDA 动态库路径注入

app/db.py

@@ -330,6 +330,19 @@ class Database:
         with self._connect() as conn:
             conn.execute(f"UPDATE workflow_runs SET {assignments} WHERE id = ?", values)
 
+    def reset_run(self, run_id: str, updated_at: str) -> None:
+        with self._connect() as conn:
+            conn.execute(
+                """
+                UPDATE workflow_runs
+                SET status = 'QUEUED', current_node_id = NULL, progress = 0,
+                    error = NULL, updated_at = ?
+                WHERE id = ?
+                """,
+                (updated_at, run_id),
+            )
+            conn.execute("DELETE FROM artifacts WHERE run_id = ?", (run_id,))
+
     def next_queued_run(self) -> dict[str, Any] | None:
         with self._connect() as conn:
             row = conn.execute(