refactor: tighten backend, flows, frontend, tests; push flows to Langflow

backend/scripts/push_flows_to_langflow.py

@@ -0,0 +1,40 @@
+"""Push canonical backend/flows/*.json into Langflow via API (no restart)."""
+
+from __future__ import annotations
+
+import asyncio
+import json
+import os
+from pathlib import Path
+
+from app.flows.langflow_client import LangflowClient, LangflowError
+from app.settings import settings
+
+
+async def main() -> None:
+    base = os.environ.get("LANGFLOW_URL", "http://localhost:7860")
+    key = settings.langflow_api_key or os.environ.get("LANGFLOW_API_KEY", "")
+    print(f"Langflow: {base} key_len={len(key)}")
+    client = LangflowClient(base, api_key=key)
+    try:
+        flows = await client.list_flows()
+        print(f"existing: {len(flows)} flows")
+        for f in flows[:20]:
+            print(" -", f.get("name"), f.get("id"))
+    except LangflowError as exc:
+        print(f"list failed: {exc}")
+        return
+    flows_dir = Path(settings.flows_dir)
+    for path in sorted(flows_dir.glob("*.json")):
+        if path.name.startswith("."):
+            continue
+        doc = json.loads(path.read_text(encoding="utf-8"))
+        try:
+            result = await client.upsert_flow(doc)
+            print(f"pushed {path.name} id={result.get('id', 'ok')}")
+        except LangflowError as exc:
+            print(f"push {path.name} failed: {exc}")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())