feat: asked-field envelope, standalone form components, branched forms

backend/app/flows/export.py

@@ -15,6 +15,24 @@ from pathlib import Path
 
 FLOWS_GLOB = "*.json"
 
+#: Opt-out list in the flows dir (one stem per line, `#` comments):
+#: listed flows stay in Langflow only — never synced, deployed,
+#: validated, or shown in the frontend.
+IGNORE_FILENAME = ".flowsignore"
+
+
+def ignored_stems(flows_dir: str | Path) -> set[str]:
+    """Stems excluded from the pipeline (empty when no ignore file)."""
+    try:
+        text = (Path(flows_dir) / IGNORE_FILENAME).read_text(encoding="utf-8")
+    except OSError:
+        return set()
+    return {
+        line.strip()
+        for line in text.splitlines()
+        if line.strip() and not line.strip().startswith("#")
+    }
+
 
 def filename_stem(name: str) -> str:
     """Map a flow name to a filename stem, keeping the original name.
@@ -113,6 +131,7 @@ def write_flow_file(flows_dir: str | Path, doc: dict, *, name: str | None = None
     return write_flow_bytes(flow_path(flows_dir, stem), doc)
 
 
-def iter_flow_files(flows_dir: str | Path) -> list[Path]:
-    """Sorted list of candidate flow files (top level only)."""
-    return sorted(Path(flows_dir).glob(FLOWS_GLOB))
+def iter_flow_files(flows_dir: str | Path, *, ignored: set[str] | None = None) -> list[Path]:
+    """Sorted list of candidate flow files (top level only, minus ignored)."""
+    skip = ignored if ignored is not None else ignored_stems(flows_dir)
+    return sorted(p for p in Path(flows_dir).glob(FLOWS_GLOB) if p.stem not in skip)