feat: push DAG on save and commit

Adds _push_dag_after_upload() helper that extracts the feature DAG
and pushes it to Silo after a successful file upload.

Hooked into both Silo_Save and Silo_Commit commands. DAG sync
failures are logged as warnings and never block the save/commit.

Closes kindred/create#216

freecad/InitGui.py

@@ -35,9 +35,20 @@ class SiloWorkbench(FreeCADGui.Workbench):
         except Exception as e:
             FreeCAD.Console.PrintWarning(f"Could not register Silo origin: {e}\n")
 
+        # Silo origin toolbar — shown as an overlay on any context when the
+        # active document is Silo-tracked.  Registered as Unavailable so
+        # EditingContextResolver controls visibility via the overlay system.
+        self.silo_toolbar_commands = [
+            "Silo_Commit",
+            "Silo_Pull",
+            "Silo_Push",
+            "Separator",
+            "Silo_Info",
+            "Silo_BOM",
+        ]
+        self.appendToolbar("Silo Origin", self.silo_toolbar_commands, "Unavailable")
+
         # Silo menu provides admin/management commands.
-        # File operations (New/Open/Save) are handled by the standard File
-        # toolbar via the origin system -- no separate Silo toolbar needed.
         self.menu_commands = [
             "Silo_Info",
             "Silo_BOM",
@@ -68,6 +79,44 @@ class SiloWorkbench(FreeCADGui.Workbench):
 FreeCADGui.addWorkbench(SiloWorkbench())
 FreeCAD.Console.PrintMessage("Silo workbench registered\n")
 
+
+# ---------------------------------------------------------------------------
+# Silo overlay context — adds "Silo Origin" toolbar to any active context
+# when the current document is Silo-tracked.
+# ---------------------------------------------------------------------------
+
+
+def _register_silo_overlay():
+    """Register the Silo overlay after the Silo workbench has initialised."""
+
+    def _silo_overlay_match():
+        """Return True if the active document is Silo-tracked."""
+        try:
+            doc = FreeCAD.ActiveDocument
+            if not doc:
+                return False
+            from silo_origin import get_silo_origin
+
+            origin = get_silo_origin()
+            return origin.ownsDocument(doc)
+        except Exception:
+            return False
+
+    try:
+        FreeCADGui.registerEditingOverlay(
+            "silo",  # overlay id
+            ["Silo Origin"],  # toolbar names to append
+            _silo_overlay_match,  # match function
+        )
+    except Exception as e:
+        FreeCAD.Console.PrintWarning(f"Silo overlay registration failed: {e}\n")
+
+
+from PySide import QtCore as _QtCore
+
+_QtCore.QTimer.singleShot(2500, _register_silo_overlay)
+
+
 # Override the Start page with Silo-aware version (must happen before
 # the C++ StartLauncher fires at ~100ms after GUI init)
 try:
@@ -92,6 +141,4 @@ def _handle_startup_urls():
             handle_kindred_url(arg)
 
 
-from PySide import QtCore
-
-QtCore.QTimer.singleShot(500, _handle_startup_urls)
+_QtCore.QTimer.singleShot(500, _handle_startup_urls)

freecad/dag.py

@@ -0,0 +1,463 @@
+"""DAG extraction engine for FreeCAD documents.
+
+Extracts the feature tree from a FreeCAD document as nodes and edges
+for syncing to the Silo server.  No GUI dependencies -- usable in both
+desktop and headless (``--console``) mode.
+
+Public API
+----------
+classify_type(type_id)          -> Optional[str]
+compute_properties_hash(obj)    -> str
+extract_dag(doc)                -> (nodes, edges)
+"""
+
+import hashlib
+import json
+import math
+from typing import Any, Dict, List, Optional, Set, Tuple
+
+# ---------------------------------------------------------------------------
+# TypeId -> DAG node type mapping
+# ---------------------------------------------------------------------------
+
+_TYPE_MAP: Dict[str, str] = {
+    # Sketch
+    "Sketcher::SketchObject": "sketch",
+    # Sketch-based additive
+    "PartDesign::Pad": "pad",
+    "PartDesign::Revolution": "pad",
+    "PartDesign::AdditivePipe": "pad",
+    "PartDesign::AdditiveLoft": "pad",
+    "PartDesign::AdditiveHelix": "pad",
+    # Sketch-based subtractive
+    "PartDesign::Pocket": "pocket",
+    "PartDesign::Groove": "pocket",
+    "PartDesign::Hole": "pocket",
+    "PartDesign::SubtractivePipe": "pocket",
+    "PartDesign::SubtractiveLoft": "pocket",
+    "PartDesign::SubtractiveHelix": "pocket",
+    # Dress-up
+    "PartDesign::Fillet": "fillet",
+    "PartDesign::Chamfer": "chamfer",
+    "PartDesign::Draft": "chamfer",
+    "PartDesign::Thickness": "chamfer",
+    # Transformations
+    "PartDesign::Mirrored": "pad",
+    "PartDesign::LinearPattern": "pad",
+    "PartDesign::PolarPattern": "pad",
+    "PartDesign::Scaled": "pad",
+    "PartDesign::MultiTransform": "pad",
+    # Boolean
+    "PartDesign::Boolean": "pad",
+    # Additive primitives
+    "PartDesign::AdditiveBox": "pad",
+    "PartDesign::AdditiveCylinder": "pad",
+    "PartDesign::AdditiveSphere": "pad",
+    "PartDesign::AdditiveCone": "pad",
+    "PartDesign::AdditiveEllipsoid": "pad",
+    "PartDesign::AdditiveTorus": "pad",
+    "PartDesign::AdditivePrism": "pad",
+    "PartDesign::AdditiveWedge": "pad",
+    # Subtractive primitives
+    "PartDesign::SubtractiveBox": "pocket",
+    "PartDesign::SubtractiveCylinder": "pocket",
+    "PartDesign::SubtractiveSphere": "pocket",
+    "PartDesign::SubtractiveCone": "pocket",
+    "PartDesign::SubtractiveEllipsoid": "pocket",
+    "PartDesign::SubtractiveTorus": "pocket",
+    "PartDesign::SubtractivePrism": "pocket",
+    "PartDesign::SubtractiveWedge": "pocket",
+    # Containers
+    "PartDesign::Body": "body",
+    "App::Part": "part",
+    "Part::Feature": "part",
+    # Datum / reference
+    "PartDesign::Point": "datum",
+    "PartDesign::Line": "datum",
+    "PartDesign::Plane": "datum",
+    "PartDesign::CoordinateSystem": "datum",
+    "PartDesign::ShapeBinder": "datum",
+    "PartDesign::SubShapeBinder": "datum",
+}
+
+
+def classify_type(type_id: str) -> Optional[str]:
+    """Map a FreeCAD TypeId string to a DAG node type.
+
+    Returns one of ``sketch``, ``pad``, ``pocket``, ``fillet``,
+    ``chamfer``, ``body``, ``part``, ``datum``, or ``None`` if the
+    TypeId is not a recognized feature.
+    """
+    return _TYPE_MAP.get(type_id)
+
+
+# ---------------------------------------------------------------------------
+# Properties hash
+# ---------------------------------------------------------------------------
+
+
+def _safe_float(val: Any) -> Any:
+    """Convert a float to a JSON-safe value, replacing NaN/Infinity with 0."""
+    if isinstance(val, float) and (math.isnan(val) or math.isinf(val)):
+        return 0.0
+    return val
+
+
+def _prop_value(obj: Any, name: str) -> Any:
+    """Safely read ``obj.<name>.Value``, returning *None* on failure."""
+    try:
+        return _safe_float(getattr(obj, name).Value)
+    except Exception:
+        return None
+
+
+def _prop_raw(obj: Any, name: str) -> Any:
+    """Safely read ``obj.<name>``, returning *None* on failure."""
+    try:
+        return getattr(obj, name)
+    except Exception:
+        return None
+
+
+def _link_name(obj: Any, name: str) -> Optional[str]:
+    """Return the ``.Name`` of a linked object property, or *None*."""
+    try:
+        link = getattr(obj, name)
+        if isinstance(link, (list, tuple)):
+            link = link[0]
+        return link.Name if link is not None else None
+    except Exception:
+        return None
+
+
+def _collect_inputs(obj: Any) -> Dict[str, Any]:
+    """Extract the parametric inputs that affect *obj*'s geometry.
+
+    The returned dict is JSON-serialized and hashed to produce the
+    ``properties_hash`` for the DAG node.
+    """
+    tid = obj.TypeId
+    inputs: Dict[str, Any] = {"_type": tid}
+
+    # --- Sketch ---
+    if tid == "Sketcher::SketchObject":
+        inputs["geometry_count"] = _prop_raw(obj, "GeometryCount")
+        inputs["constraint_count"] = _prop_raw(obj, "ConstraintCount")
+        try:
+            inputs["geometry"] = obj.Shape.exportBrepToString()
+        except Exception:
+            pass
+        return inputs
+
+    # --- Extrude (Pad / Pocket) ---
+    if tid in ("PartDesign::Pad", "PartDesign::Pocket"):
+        inputs["length"] = _prop_value(obj, "Length")
+        inputs["type"] = str(_prop_raw(obj, "Type") or "")
+        inputs["reversed"] = _prop_raw(obj, "Reversed")
+        inputs["sketch"] = _link_name(obj, "Profile")
+        return inputs
+
+    # --- Revolution / Groove ---
+    if tid in ("PartDesign::Revolution", "PartDesign::Groove"):
+        inputs["angle"] = _prop_value(obj, "Angle")
+        inputs["type"] = str(_prop_raw(obj, "Type") or "")
+        inputs["reversed"] = _prop_raw(obj, "Reversed")
+        inputs["sketch"] = _link_name(obj, "Profile")
+        return inputs
+
+    # --- Hole ---
+    if tid == "PartDesign::Hole":
+        inputs["diameter"] = _prop_value(obj, "Diameter")
+        inputs["depth"] = _prop_value(obj, "Depth")
+        inputs["threaded"] = _prop_raw(obj, "Threaded")
+        inputs["thread_type"] = str(_prop_raw(obj, "ThreadType") or "")
+        inputs["depth_type"] = str(_prop_raw(obj, "DepthType") or "")
+        inputs["sketch"] = _link_name(obj, "Profile")
+        return inputs
+
+    # --- Pipe / Loft / Helix (additive + subtractive) ---
+    if tid in (
+        "PartDesign::AdditivePipe",
+        "PartDesign::SubtractivePipe",
+        "PartDesign::AdditiveLoft",
+        "PartDesign::SubtractiveLoft",
+        "PartDesign::AdditiveHelix",
+        "PartDesign::SubtractiveHelix",
+    ):
+        inputs["sketch"] = _link_name(obj, "Profile")
+        inputs["spine"] = _link_name(obj, "Spine")
+        return inputs
+
+    # --- Fillet ---
+    if tid == "PartDesign::Fillet":
+        inputs["radius"] = _prop_value(obj, "Radius")
+        return inputs
+
+    # --- Chamfer ---
+    if tid == "PartDesign::Chamfer":
+        inputs["chamfer_type"] = str(_prop_raw(obj, "ChamferType") or "")
+        inputs["size"] = _prop_value(obj, "Size")
+        inputs["size2"] = _prop_value(obj, "Size2")
+        inputs["angle"] = _prop_value(obj, "Angle")
+        return inputs
+
+    # --- Draft ---
+    if tid == "PartDesign::Draft":
+        inputs["angle"] = _prop_value(obj, "Angle")
+        inputs["reversed"] = _prop_raw(obj, "Reversed")
+        return inputs
+
+    # --- Thickness ---
+    if tid == "PartDesign::Thickness":
+        inputs["value"] = _prop_value(obj, "Value")
+        inputs["reversed"] = _prop_raw(obj, "Reversed")
+        inputs["mode"] = str(_prop_raw(obj, "Mode") or "")
+        inputs["join"] = str(_prop_raw(obj, "Join") or "")
+        return inputs
+
+    # --- Mirrored ---
+    if tid == "PartDesign::Mirrored":
+        inputs["mirror_plane"] = _link_name(obj, "MirrorPlane")
+        return inputs
+
+    # --- LinearPattern ---
+    if tid == "PartDesign::LinearPattern":
+        inputs["direction"] = _link_name(obj, "Direction")
+        inputs["reversed"] = _prop_raw(obj, "Reversed")
+        inputs["length"] = _prop_value(obj, "Length")
+        inputs["occurrences"] = _prop_value(obj, "Occurrences")
+        return inputs
+
+    # --- PolarPattern ---
+    if tid == "PartDesign::PolarPattern":
+        inputs["axis"] = _link_name(obj, "Axis")
+        inputs["reversed"] = _prop_raw(obj, "Reversed")
+        inputs["angle"] = _prop_value(obj, "Angle")
+        inputs["occurrences"] = _prop_value(obj, "Occurrences")
+        return inputs
+
+    # --- Scaled ---
+    if tid == "PartDesign::Scaled":
+        inputs["factor"] = _prop_value(obj, "Factor")
+        inputs["occurrences"] = _prop_value(obj, "Occurrences")
+        return inputs
+
+    # --- MultiTransform ---
+    if tid == "PartDesign::MultiTransform":
+        try:
+            inputs["transform_count"] = len(obj.Transformations)
+        except Exception:
+            pass
+        return inputs
+
+    # --- Boolean ---
+    if tid == "PartDesign::Boolean":
+        inputs["type"] = str(_prop_raw(obj, "Type") or "")
+        return inputs
+
+    # --- Primitives (additive) ---
+    if tid in (
+        "PartDesign::AdditiveBox",
+        "PartDesign::SubtractiveBox",
+    ):
+        inputs["length"] = _prop_value(obj, "Length")
+        inputs["width"] = _prop_value(obj, "Width")
+        inputs["height"] = _prop_value(obj, "Height")
+        return inputs
+
+    if tid in (
+        "PartDesign::AdditiveCylinder",
+        "PartDesign::SubtractiveCylinder",
+    ):
+        inputs["radius"] = _prop_value(obj, "Radius")
+        inputs["height"] = _prop_value(obj, "Height")
+        inputs["angle"] = _prop_value(obj, "Angle")
+        return inputs
+
+    if tid in (
+        "PartDesign::AdditiveSphere",
+        "PartDesign::SubtractiveSphere",
+    ):
+        inputs["radius"] = _prop_value(obj, "Radius")
+        return inputs
+
+    if tid in (
+        "PartDesign::AdditiveCone",
+        "PartDesign::SubtractiveCone",
+    ):
+        inputs["radius1"] = _prop_value(obj, "Radius1")
+        inputs["radius2"] = _prop_value(obj, "Radius2")
+        inputs["height"] = _prop_value(obj, "Height")
+        return inputs
+
+    if tid in (
+        "PartDesign::AdditiveEllipsoid",
+        "PartDesign::SubtractiveEllipsoid",
+    ):
+        inputs["radius1"] = _prop_value(obj, "Radius1")
+        inputs["radius2"] = _prop_value(obj, "Radius2")
+        inputs["radius3"] = _prop_value(obj, "Radius3")
+        return inputs
+
+    if tid in (
+        "PartDesign::AdditiveTorus",
+        "PartDesign::SubtractiveTorus",
+    ):
+        inputs["radius1"] = _prop_value(obj, "Radius1")
+        inputs["radius2"] = _prop_value(obj, "Radius2")
+        return inputs
+
+    if tid in (
+        "PartDesign::AdditivePrism",
+        "PartDesign::SubtractivePrism",
+    ):
+        inputs["polygon"] = _prop_raw(obj, "Polygon")
+        inputs["circumradius"] = _prop_value(obj, "Circumradius")
+        inputs["height"] = _prop_value(obj, "Height")
+        return inputs
+
+    if tid in (
+        "PartDesign::AdditiveWedge",
+        "PartDesign::SubtractiveWedge",
+    ):
+        for dim in (
+            "Xmin",
+            "Ymin",
+            "Zmin",
+            "X2min",
+            "Z2min",
+            "Xmax",
+            "Ymax",
+            "Zmax",
+            "X2max",
+            "Z2max",
+        ):
+            inputs[dim.lower()] = _prop_value(obj, dim)
+        return inputs
+
+    # --- Datum / ShapeBinder ---
+    if tid in (
+        "PartDesign::Point",
+        "PartDesign::Line",
+        "PartDesign::Plane",
+        "PartDesign::CoordinateSystem",
+        "PartDesign::ShapeBinder",
+        "PartDesign::SubShapeBinder",
+    ):
+        try:
+            p = obj.Placement
+            inputs["position"] = {
+                "x": _safe_float(p.Base.x),
+                "y": _safe_float(p.Base.y),
+                "z": _safe_float(p.Base.z),
+            }
+            inputs["rotation"] = {
+                "axis_x": _safe_float(p.Rotation.Axis.x),
+                "axis_y": _safe_float(p.Rotation.Axis.y),
+                "axis_z": _safe_float(p.Rotation.Axis.z),
+                "angle": _safe_float(p.Rotation.Angle),
+            }
+        except Exception:
+            pass
+        return inputs
+
+    # --- Body / Part (containers) ---
+    if tid in ("PartDesign::Body", "App::Part", "Part::Feature"):
+        try:
+            inputs["child_count"] = len(obj.Group)
+        except Exception:
+            inputs["child_count"] = 0
+        return inputs
+
+    # --- Fallback ---
+    inputs["label"] = obj.Label
+    return inputs
+
+
+def compute_properties_hash(obj: Any) -> str:
+    """Return a SHA-256 hex digest of *obj*'s parametric inputs.
+
+    The hash is used for memoization -- if a node's inputs haven't
+    changed since the last validation run, re-validation can be skipped.
+    """
+    inputs = _collect_inputs(obj)
+    canonical = json.dumps(inputs, sort_keys=True, default=str)
+    return hashlib.sha256(canonical.encode()).hexdigest()
+
+
+# ---------------------------------------------------------------------------
+# DAG extraction
+# ---------------------------------------------------------------------------
+
+
+def extract_dag(
+    doc: Any,
+) -> Tuple[List[Dict[str, Any]], List[Dict[str, Any]]]:
+    """Walk a FreeCAD document and return ``(nodes, edges)``.
+
+    *nodes* is a list of dicts matching the Silo ``PUT /dag`` payload
+    schema.  *edges* connects dependencies (source) to dependents
+    (target).
+
+    Only objects whose TypeId is recognized by :func:`classify_type`
+    are included.  Edges are limited to pairs where **both** endpoints
+    are included, preventing dangling references to internal objects
+    such as ``App::Origin``.
+    """
+    # Pass 1 -- identify included objects
+    included: Set[str] = set()
+    classified: Dict[str, str] = {}  # obj.Name -> node_type
+
+    for obj in doc.Objects:
+        if not hasattr(obj, "TypeId"):
+            continue
+        node_type = classify_type(obj.TypeId)
+        if node_type is not None:
+            included.add(obj.Name)
+            classified[obj.Name] = node_type
+
+    # Pass 2 -- build nodes and edges
+    nodes: List[Dict[str, Any]] = []
+    edges: List[Dict[str, Any]] = []
+    seen_edges: Set[Tuple[str, str]] = set()
+
+    for obj in doc.Objects:
+        if obj.Name not in included:
+            continue
+
+        nodes.append(
+            {
+                "node_key": obj.Name,
+                "node_type": classified[obj.Name],
+                "properties_hash": compute_properties_hash(obj),
+                "metadata": {
+                    "label": obj.Label,
+                    "type_id": obj.TypeId,
+                },
+            }
+        )
+
+        # Walk dependencies: OutList contains objects this one depends on
+        try:
+            out_list = obj.OutList
+        except Exception:
+            continue
+
+        for dep in out_list:
+            if not hasattr(dep, "Name"):
+                continue
+            if dep.Name not in included:
+                continue
+            edge_key = (dep.Name, obj.Name)
+            if edge_key in seen_edges:
+                continue
+            seen_edges.add(edge_key)
+            edges.append(
+                {
+                    "source_key": dep.Name,
+                    "target_key": obj.Name,
+                    "edge_type": "depends_on",
+                }
+            )
+
+    return nodes, edges

freecad/open_search.py

@@ -0,0 +1,191 @@
+"""Search-and-open widget for Kindred Create.
+
+Provides :class:`OpenItemWidget`, a plain ``QWidget`` that can be
+embedded in an MDI sub-window.  Searches both the Silo database and
+local CAD files, presenting results in a unified table.  Emits
+``item_selected`` when the user picks an item and ``cancelled`` when
+the user clicks Cancel.
+"""
+
+import FreeCAD
+from PySide import QtCore, QtWidgets
+
+
+class OpenItemWidget(QtWidgets.QWidget):
+    """Search-and-open widget for embedding in an MDI subwindow.
+
+    Parameters
+    ----------
+    client : SiloClient
+        Authenticated Silo API client instance.
+    search_local_fn : callable
+        Function that accepts a search term string and returns an
+        iterable of dicts with keys ``part_number``, ``description``,
+        ``path``, ``modified``.
+    parent : QWidget, optional
+        Parent widget.
+
+    Signals
+    -------
+    item_selected(dict)
+        Emitted when the user selects an item.  The dict contains
+        keys: *part_number*, *description*, *item_type*, *source*
+        (``"database"``, ``"local"``, or ``"both"``), *modified*,
+        and *path* (str or ``None``).
+    cancelled()
+        Emitted when the user clicks Cancel.
+    """
+
+    item_selected = QtCore.Signal(dict)
+    cancelled = QtCore.Signal()
+
+    def __init__(self, client, search_local_fn, parent=None):
+        super().__init__(parent)
+        self._client = client
+        self._search_local = search_local_fn
+        self._results_data = []
+
+        self.setMinimumWidth(700)
+        self.setMinimumHeight(500)
+
+        self._build_ui()
+
+        # Debounced search timer (500 ms)
+        self._search_timer = QtCore.QTimer(self)
+        self._search_timer.setSingleShot(True)
+        self._search_timer.setInterval(500)
+        self._search_timer.timeout.connect(self._do_search)
+
+        # Populate on first display
+        QtCore.QTimer.singleShot(0, self._do_search)
+
+    # ---- UI construction ---------------------------------------------------
+
+    def _build_ui(self):
+        layout = QtWidgets.QVBoxLayout(self)
+        layout.setSpacing(8)
+
+        # Search row
+        self._search_input = QtWidgets.QLineEdit()
+        self._search_input.setPlaceholderText("Search by part number or description...")
+        self._search_input.textChanged.connect(self._on_search_changed)
+        layout.addWidget(self._search_input)
+
+        # Filter checkboxes
+        filter_layout = QtWidgets.QHBoxLayout()
+        self._db_checkbox = QtWidgets.QCheckBox("Database")
+        self._db_checkbox.setChecked(True)
+        self._local_checkbox = QtWidgets.QCheckBox("Local Files")
+        self._local_checkbox.setChecked(True)
+        self._db_checkbox.toggled.connect(self._on_filter_changed)
+        self._local_checkbox.toggled.connect(self._on_filter_changed)
+        filter_layout.addWidget(self._db_checkbox)
+        filter_layout.addWidget(self._local_checkbox)
+        filter_layout.addStretch()
+        layout.addLayout(filter_layout)
+
+        # Results table
+        self._results_table = QtWidgets.QTableWidget()
+        self._results_table.setColumnCount(5)
+        self._results_table.setHorizontalHeaderLabels(
+            ["Part Number", "Description", "Type", "Source", "Modified"]
+        )
+        self._results_table.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
+        self._results_table.setSelectionMode(QtWidgets.QAbstractItemView.SingleSelection)
+        self._results_table.horizontalHeader().setStretchLastSection(True)
+        self._results_table.setEditTriggers(QtWidgets.QAbstractItemView.NoEditTriggers)
+        self._results_table.doubleClicked.connect(self._open_selected)
+        layout.addWidget(self._results_table, 1)
+
+        # Buttons
+        btn_layout = QtWidgets.QHBoxLayout()
+        btn_layout.addStretch()
+        open_btn = QtWidgets.QPushButton("Open")
+        open_btn.clicked.connect(self._open_selected)
+        cancel_btn = QtWidgets.QPushButton("Cancel")
+        cancel_btn.clicked.connect(self.cancelled.emit)
+        btn_layout.addWidget(open_btn)
+        btn_layout.addWidget(cancel_btn)
+        layout.addLayout(btn_layout)
+
+    # ---- Search logic ------------------------------------------------------
+
+    def _on_search_changed(self, _text):
+        """Restart debounce timer on each keystroke."""
+        self._search_timer.start()
+
+    def _on_filter_changed(self, _checked):
+        """Re-run search immediately when filter checkboxes change."""
+        self._do_search()
+
+    def _do_search(self):
+        """Execute search against database and/or local files."""
+        search_term = self._search_input.text().strip()
+        self._results_data = []
+
+        if self._db_checkbox.isChecked():
+            try:
+                for item in self._client.list_items(search=search_term):
+                    self._results_data.append(
+                        {
+                            "part_number": item.get("part_number", ""),
+                            "description": item.get("description", ""),
+                            "item_type": item.get("item_type", ""),
+                            "source": "database",
+                            "modified": item.get("updated_at", "")[:10]
+                            if item.get("updated_at")
+                            else "",
+                            "path": None,
+                        }
+                    )
+            except Exception as e:
+                FreeCAD.Console.PrintWarning(f"DB search failed: {e}\n")
+
+        if self._local_checkbox.isChecked():
+            try:
+                for item in self._search_local(search_term):
+                    existing = next(
+                        (r for r in self._results_data if r["part_number"] == item["part_number"]),
+                        None,
+                    )
+                    if existing:
+                        existing["source"] = "both"
+                        existing["path"] = item.get("path")
+                    else:
+                        self._results_data.append(
+                            {
+                                "part_number": item.get("part_number", ""),
+                                "description": item.get("description", ""),
+                                "item_type": "",
+                                "source": "local",
+                                "modified": item.get("modified", "")[:10]
+                                if item.get("modified")
+                                else "",
+                                "path": item.get("path"),
+                            }
+                        )
+            except Exception as e:
+                FreeCAD.Console.PrintWarning(f"Local search failed: {e}\n")
+
+        self._populate_table()
+
+    def _populate_table(self):
+        """Refresh the results table from ``_results_data``."""
+        self._results_table.setRowCount(len(self._results_data))
+        for row, data in enumerate(self._results_data):
+            self._results_table.setItem(row, 0, QtWidgets.QTableWidgetItem(data["part_number"]))
+            self._results_table.setItem(row, 1, QtWidgets.QTableWidgetItem(data["description"]))
+            self._results_table.setItem(row, 2, QtWidgets.QTableWidgetItem(data["item_type"]))
+            self._results_table.setItem(row, 3, QtWidgets.QTableWidgetItem(data["source"]))
+            self._results_table.setItem(row, 4, QtWidgets.QTableWidgetItem(data["modified"]))
+        self._results_table.resizeColumnsToContents()
+
+    # ---- Selection ---------------------------------------------------------
+
+    def _open_selected(self):
+        """Emit ``item_selected`` with the data from the selected row."""
+        selected = self._results_table.selectedItems()
+        if not selected:
+            return
+        row = selected[0].row()
+        self.item_selected.emit(dict(self._results_data[row]))

freecad/schema_form.py

@@ -0,0 +1,629 @@
+"""Schema-driven new-item form for Kindred Create.
+
+Fetches schema data from the Silo REST API and builds a dynamic Qt form
+that mirrors the React ``CreateItemPane`` — category picker, property
+fields grouped by domain, live part number preview, and project tagging.
+
+The primary widget is :class:`SchemaFormWidget` (a plain ``QWidget``)
+which can be embedded in an MDI tab, dock panel, or wrapped in the
+backward-compatible :class:`SchemaFormDialog` modal.
+"""
+
+import json
+import urllib.error
+import urllib.parse
+import urllib.request
+
+import FreeCAD
+from PySide import QtCore, QtGui, QtWidgets
+
+# ---------------------------------------------------------------------------
+# Domain labels derived from the first character of category codes.
+# ---------------------------------------------------------------------------
+
+_DOMAIN_LABELS = {
+    "F": "Fasteners",
+    "C": "Fluid Fittings",
+    "R": "Motion Components",
+    "S": "Structural",
+    "E": "Electrical",
+    "M": "Mechanical",
+    "T": "Tooling",
+    "A": "Assemblies",
+    "P": "Purchased",
+    "X": "Custom Fabricated",
+}
+
+_ITEM_TYPES = ["part", "assembly", "consumable", "tool"]
+_SOURCING_TYPES = ["manufactured", "purchased"]
+
+
+# ---------------------------------------------------------------------------
+# Collapsible group box
+# ---------------------------------------------------------------------------
+
+
+class _CollapsibleGroup(QtWidgets.QGroupBox):
+    """A QGroupBox that can be collapsed by clicking its title."""
+
+    def __init__(self, title: str, parent=None, collapsed=False):
+        super().__init__(title, parent)
+        self.setCheckable(True)
+        self.setChecked(not collapsed)
+        self.toggled.connect(self._on_toggled)
+        self._content = QtWidgets.QWidget()
+        self._layout = QtWidgets.QFormLayout(self._content)
+        self._layout.setContentsMargins(8, 4, 8, 4)
+        self._layout.setSpacing(6)
+
+        outer = QtWidgets.QVBoxLayout(self)
+        outer.setContentsMargins(0, 4, 0, 0)
+        outer.addWidget(self._content)
+
+        if collapsed:
+            self._content.hide()
+
+    def form_layout(self) -> QtWidgets.QFormLayout:
+        return self._layout
+
+    def _on_toggled(self, checked: bool):
+        self._content.setVisible(checked)
+
+
+# ---------------------------------------------------------------------------
+# Category picker (domain combo → subcategory combo)
+# ---------------------------------------------------------------------------
+
+
+class _CategoryPicker(QtWidgets.QWidget):
+    """Two chained combo boxes: domain group → subcategory within that group."""
+
+    category_changed = QtCore.Signal(str)  # emits full code e.g. "F01"
+
+    def __init__(self, categories: dict, parent=None):
+        super().__init__(parent)
+        self._categories = categories  # {code: description, ...}
+
+        # Group by first character
+        self._groups = {}  # {prefix: [(code, desc), ...]}
+        for code, desc in sorted(categories.items()):
+            prefix = code[0] if code else "?"
+            self._groups.setdefault(prefix, []).append((code, desc))
+
+        layout = QtWidgets.QHBoxLayout(self)
+        layout.setContentsMargins(0, 0, 0, 0)
+        layout.setSpacing(8)
+
+        self._domain_combo = QtWidgets.QComboBox()
+        self._domain_combo.addItem("-- Select domain --", "")
+        for prefix in sorted(self._groups.keys()):
+            label = _DOMAIN_LABELS.get(prefix, prefix)
+            count = len(self._groups[prefix])
+            self._domain_combo.addItem(f"{prefix} \u2014 {label} ({count})", prefix)
+        self._domain_combo.currentIndexChanged.connect(self._on_domain_changed)
+        layout.addWidget(self._domain_combo, 1)
+
+        self._sub_combo = QtWidgets.QComboBox()
+        self._sub_combo.setEnabled(False)
+        self._sub_combo.currentIndexChanged.connect(self._on_sub_changed)
+        layout.addWidget(self._sub_combo, 1)
+
+    def selected_category(self) -> str:
+        return self._sub_combo.currentData() or ""
+
+    def _on_domain_changed(self, _index: int):
+        prefix = self._domain_combo.currentData()
+        self._sub_combo.clear()
+        if not prefix:
+            self._sub_combo.setEnabled(False)
+            self.category_changed.emit("")
+            return
+
+        self._sub_combo.setEnabled(True)
+        self._sub_combo.addItem("-- Select subcategory --", "")
+        for code, desc in self._groups.get(prefix, []):
+            self._sub_combo.addItem(f"{code} \u2014 {desc}", code)
+
+    def _on_sub_changed(self, _index: int):
+        code = self._sub_combo.currentData() or ""
+        self.category_changed.emit(code)
+
+
+# ---------------------------------------------------------------------------
+# Property field factory
+# ---------------------------------------------------------------------------
+
+
+def _make_field(prop_def: dict) -> QtWidgets.QWidget:
+    """Create a Qt widget for a property definition.
+
+    ``prop_def`` has keys: type, default, unit, description, required.
+    """
+    ptype = prop_def.get("type", "string")
+
+    if ptype == "boolean":
+        cb = QtWidgets.QCheckBox()
+        default = prop_def.get("default")
+        if default is True:
+            cb.setChecked(True)
+        if prop_def.get("description"):
+            cb.setToolTip(prop_def["description"])
+        return cb
+
+    if ptype == "number":
+        container = QtWidgets.QWidget()
+        h = QtWidgets.QHBoxLayout(container)
+        h.setContentsMargins(0, 0, 0, 0)
+        h.setSpacing(4)
+
+        spin = QtWidgets.QDoubleSpinBox()
+        spin.setDecimals(4)
+        spin.setRange(-1e9, 1e9)
+        spin.setSpecialValueText("")  # show empty when at minimum
+        default = prop_def.get("default")
+        if default is not None and default != "":
+            try:
+                spin.setValue(float(default))
+            except (ValueError, TypeError):
+                pass
+        else:
+            spin.clear()
+        if prop_def.get("description"):
+            spin.setToolTip(prop_def["description"])
+        h.addWidget(spin, 1)
+
+        unit = prop_def.get("unit", "")
+        if unit:
+            unit_label = QtWidgets.QLabel(unit)
+            unit_label.setFixedWidth(40)
+            h.addWidget(unit_label)
+
+        return container
+
+    # Default: string
+    le = QtWidgets.QLineEdit()
+    default = prop_def.get("default")
+    if default and isinstance(default, str):
+        le.setText(default)
+    if prop_def.get("description"):
+        le.setPlaceholderText(prop_def["description"])
+        le.setToolTip(prop_def["description"])
+    return le
+
+
+def _read_field(widget: QtWidgets.QWidget, prop_def: dict):
+    """Extract the value from a property widget, type-converted."""
+    ptype = prop_def.get("type", "string")
+
+    if ptype == "boolean":
+        return widget.isChecked()
+
+    if ptype == "number":
+        spin = widget.findChild(QtWidgets.QDoubleSpinBox)
+        if spin is None:
+            return None
+        text = spin.text().strip()
+        if not text:
+            return None
+        return spin.value()
+
+    # string
+    if isinstance(widget, QtWidgets.QLineEdit):
+        val = widget.text().strip()
+        return val if val else None
+    return None
+
+
+# ---------------------------------------------------------------------------
+# Embeddable form widget
+# ---------------------------------------------------------------------------
+
+
+class SchemaFormWidget(QtWidgets.QWidget):
+    """Schema-driven new-item form widget.
+
+    A plain ``QWidget`` that can be embedded in an MDI subwindow, dock
+    panel, or dialog.  Emits :pyqt:`item_created` on successful creation
+    and :pyqt:`cancelled` when the user clicks Cancel.
+    """
+
+    item_created = QtCore.Signal(dict)
+    cancelled = QtCore.Signal()
+
+    def __init__(self, client, parent=None):
+        super().__init__(parent)
+        self._client = client
+        self._prop_widgets = {}  # {key: (widget, prop_def)}
+        self._prop_groups = []  # list of _CollapsibleGroup to clear on category change
+        self._categories = {}
+        self._projects = []
+
+        self._load_schema_data()
+        self._build_ui()
+
+        # Part number preview debounce timer
+        self._pn_timer = QtCore.QTimer(self)
+        self._pn_timer.setSingleShot(True)
+        self._pn_timer.setInterval(500)
+        self._pn_timer.timeout.connect(self._update_pn_preview)
+
+    # -- data loading -------------------------------------------------------
+
+    def _load_schema_data(self):
+        """Fetch categories and projects from the API."""
+        try:
+            schema = self._client.get_schema()
+            segments = schema.get("segments", [])
+            cat_segment = next((s for s in segments if s.get("name") == "category"), None)
+            if cat_segment and cat_segment.get("values"):
+                self._categories = cat_segment["values"]
+        except Exception as e:
+            FreeCAD.Console.PrintWarning(f"Schema form: failed to fetch schema: {e}\n")
+
+        try:
+            self._projects = self._client.get_projects() or []
+        except Exception:
+            self._projects = []
+
+    def _fetch_properties(self, category: str) -> dict:
+        """Fetch merged property definitions for a category."""
+        from silo_commands import _get_api_url, _get_auth_headers, _get_ssl_context
+
+        api_url = _get_api_url().rstrip("/")
+        url = f"{api_url}/schemas/kindred-rd/properties?category={urllib.parse.quote(category)}"
+        req = urllib.request.Request(url, method="GET")
+        req.add_header("Accept", "application/json")
+        for k, v in _get_auth_headers().items():
+            req.add_header(k, v)
+        try:
+            resp = urllib.request.urlopen(req, context=_get_ssl_context(), timeout=5)
+            data = json.loads(resp.read().decode("utf-8"))
+            return data.get("properties", data)
+        except Exception as e:
+            FreeCAD.Console.PrintWarning(
+                f"Schema form: failed to fetch properties for {category}: {e}\n"
+            )
+            return {}
+
+    def _generate_pn_preview(self, category: str) -> str:
+        """Call the server to preview the next part number."""
+        from silo_commands import _get_api_url, _get_auth_headers, _get_ssl_context
+
+        api_url = _get_api_url().rstrip("/")
+        url = f"{api_url}/generate-part-number"
+        payload = json.dumps({"schema": "kindred-rd", "category": category}).encode()
+        req = urllib.request.Request(url, data=payload, method="POST")
+        req.add_header("Content-Type", "application/json")
+        req.add_header("Accept", "application/json")
+        for k, v in _get_auth_headers().items():
+            req.add_header(k, v)
+        try:
+            resp = urllib.request.urlopen(req, context=_get_ssl_context(), timeout=5)
+            data = json.loads(resp.read().decode("utf-8"))
+            return data.get("part_number", "")
+        except Exception:
+            return ""
+
+    # -- UI construction ----------------------------------------------------
+
+    def _build_ui(self):
+        root = QtWidgets.QVBoxLayout(self)
+        root.setSpacing(8)
+
+        # Inline error label (hidden by default)
+        self._error_label = QtWidgets.QLabel()
+        self._error_label.setStyleSheet(
+            "background-color: #f38ba8; color: #1e1e2e; "
+            "padding: 8px; border-radius: 4px; font-weight: bold;"
+        )
+        self._error_label.setAlignment(QtCore.Qt.AlignCenter)
+        self._error_label.hide()
+        root.addWidget(self._error_label)
+
+        # Part number preview banner
+        self._pn_label = QtWidgets.QLabel("Part Number: \u2014")
+        self._pn_label.setStyleSheet("font-size: 16px; font-weight: bold; padding: 8px;")
+        self._pn_label.setAlignment(QtCore.Qt.AlignCenter)
+        root.addWidget(self._pn_label)
+
+        # Scroll area for form content
+        scroll = QtWidgets.QScrollArea()
+        scroll.setWidgetResizable(True)
+        scroll.setFrameShape(QtWidgets.QFrame.NoFrame)
+        scroll_content = QtWidgets.QWidget()
+        self._form_layout = QtWidgets.QVBoxLayout(scroll_content)
+        self._form_layout.setSpacing(8)
+        self._form_layout.setContentsMargins(8, 4, 8, 4)
+        scroll.setWidget(scroll_content)
+        root.addWidget(scroll, 1)
+
+        # --- Identity section ---
+        identity = _CollapsibleGroup("Identity")
+        fl = identity.form_layout()
+
+        self._type_combo = QtWidgets.QComboBox()
+        for t in _ITEM_TYPES:
+            self._type_combo.addItem(t.capitalize(), t)
+        fl.addRow("Type:", self._type_combo)
+
+        self._desc_edit = QtWidgets.QLineEdit()
+        self._desc_edit.setPlaceholderText("Item description")
+        fl.addRow("Description:", self._desc_edit)
+
+        self._cat_picker = _CategoryPicker(self._categories)
+        self._cat_picker.category_changed.connect(self._on_category_changed)
+        fl.addRow("Category:", self._cat_picker)
+
+        self._form_layout.addWidget(identity)
+
+        # --- Sourcing section ---
+        sourcing = _CollapsibleGroup("Sourcing", collapsed=True)
+        fl = sourcing.form_layout()
+
+        self._sourcing_combo = QtWidgets.QComboBox()
+        for s in _SOURCING_TYPES:
+            self._sourcing_combo.addItem(s.capitalize(), s)
+        fl.addRow("Sourcing:", self._sourcing_combo)
+
+        self._cost_spin = QtWidgets.QDoubleSpinBox()
+        self._cost_spin.setDecimals(2)
+        self._cost_spin.setRange(0, 1e9)
+        self._cost_spin.setPrefix("$ ")
+        self._cost_spin.setSpecialValueText("")
+        fl.addRow("Standard Cost:", self._cost_spin)
+
+        self._sourcing_url = QtWidgets.QLineEdit()
+        self._sourcing_url.setPlaceholderText("https://...")
+        fl.addRow("Sourcing URL:", self._sourcing_url)
+
+        self._form_layout.addWidget(sourcing)
+
+        # --- Details section ---
+        details = _CollapsibleGroup("Details", collapsed=True)
+        fl = details.form_layout()
+
+        self._long_desc = QtWidgets.QTextEdit()
+        self._long_desc.setMaximumHeight(80)
+        self._long_desc.setPlaceholderText("Detailed description...")
+        fl.addRow("Long Description:", self._long_desc)
+
+        # Project selection
+        self._project_list = QtWidgets.QListWidget()
+        self._project_list.setSelectionMode(QtWidgets.QAbstractItemView.MultiSelection)
+        self._project_list.setMaximumHeight(100)
+        for proj in self._projects:
+            code = proj.get("code", "")
+            name = proj.get("name", "")
+            label = f"{code} \u2014 {name}" if name else code
+            item = QtWidgets.QListWidgetItem(label)
+            item.setData(QtCore.Qt.UserRole, code)
+            self._project_list.addItem(item)
+        if self._projects:
+            fl.addRow("Projects:", self._project_list)
+
+        self._form_layout.addWidget(details)
+
+        # --- Dynamic property groups (inserted here on category change) ---
+        self._prop_insert_index = self._form_layout.count()
+
+        # Spacer
+        self._form_layout.addStretch()
+
+        # --- Buttons ---
+        btn_layout = QtWidgets.QHBoxLayout()
+        btn_layout.addStretch()
+
+        self._cancel_btn = QtWidgets.QPushButton("Cancel")
+        self._cancel_btn.clicked.connect(self.cancelled.emit)
+        btn_layout.addWidget(self._cancel_btn)
+
+        self._create_btn = QtWidgets.QPushButton("Create")
+        self._create_btn.setEnabled(False)
+        self._create_btn.setDefault(True)
+        self._create_btn.clicked.connect(self._on_create)
+        btn_layout.addWidget(self._create_btn)
+
+        root.addLayout(btn_layout)
+
+    # -- category change ----------------------------------------------------
+
+    def _on_category_changed(self, category: str):
+        """Rebuild property groups when category selection changes."""
+        self._create_btn.setEnabled(bool(category))
+
+        # Remove old property groups
+        for group in self._prop_groups:
+            self._form_layout.removeWidget(group)
+            group.deleteLater()
+        self._prop_groups.clear()
+        self._prop_widgets.clear()
+
+        if not category:
+            self._pn_label.setText("Part Number: \u2014")
+            return
+
+        # Trigger part number preview
+        self._pn_timer.start()
+
+        # Fetch properties
+        all_props = self._fetch_properties(category)
+        if not all_props:
+            return
+
+        # Separate into category-specific and common (default) properties.
+        # The server merges them but we can identify category-specific ones
+        # by checking what the schema defines for this category prefix.
+        prefix = category[0]
+        domain_label = _DOMAIN_LABELS.get(prefix, prefix)
+
+        # We fetch the raw schema to determine which keys are category-specific.
+        # For now, use a heuristic: keys that are NOT in the well-known defaults
+        # list are category-specific.
+        _KNOWN_DEFAULTS = {
+            "manufacturer",
+            "manufacturer_pn",
+            "supplier",
+            "supplier_pn",
+            "sourcing_link",
+            "standard_cost",
+            "lead_time_days",
+            "minimum_order_qty",
+            "lifecycle_status",
+            "rohs_compliant",
+            "country_of_origin",
+            "notes",
+        }
+
+        cat_specific = {}
+        common = {}
+        for key, pdef in sorted(all_props.items()):
+            if key in _KNOWN_DEFAULTS:
+                common[key] = pdef
+            else:
+                cat_specific[key] = pdef
+
+        insert_pos = self._prop_insert_index
+
+        # Category-specific properties group
+        if cat_specific:
+            group = _CollapsibleGroup(f"{domain_label} Properties")
+            fl = group.form_layout()
+            for key, pdef in cat_specific.items():
+                label = key.replace("_", " ").title()
+                widget = _make_field(pdef)
+                fl.addRow(f"{label}:", widget)
+                self._prop_widgets[key] = (widget, pdef)
+            self._form_layout.insertWidget(insert_pos, group)
+            self._prop_groups.append(group)
+            insert_pos += 1
+
+        # Common properties group (collapsed by default)
+        if common:
+            group = _CollapsibleGroup("Common Properties", collapsed=True)
+            fl = group.form_layout()
+            for key, pdef in common.items():
+                label = key.replace("_", " ").title()
+                widget = _make_field(pdef)
+                fl.addRow(f"{label}:", widget)
+                self._prop_widgets[key] = (widget, pdef)
+            self._form_layout.insertWidget(insert_pos, group)
+            self._prop_groups.append(group)
+
+    def _update_pn_preview(self):
+        """Fetch and display the next part number preview."""
+        category = self._cat_picker.selected_category()
+        if not category:
+            self._pn_label.setText("Part Number: \u2014")
+            return
+
+        pn = self._generate_pn_preview(category)
+        if pn:
+            self._pn_label.setText(f"Part Number: {pn}")
+            self.setWindowTitle(f"New: {pn}")
+        else:
+            self._pn_label.setText(f"Part Number: {category}-????")
+            self.setWindowTitle(f"New: {category}-????")
+
+    # -- submission ---------------------------------------------------------
+
+    def _collect_form_data(self) -> dict:
+        """Collect all form values into a dict suitable for create_item."""
+        category = self._cat_picker.selected_category()
+        description = self._desc_edit.text().strip()
+        item_type = self._type_combo.currentData()
+        sourcing_type = self._sourcing_combo.currentData()
+        cost_text = self._cost_spin.text().strip().lstrip("$ ")
+        standard_cost = float(cost_text) if cost_text else None
+        sourcing_link = self._sourcing_url.text().strip() or None
+        long_description = self._long_desc.toPlainText().strip() or None
+
+        # Projects
+        selected_projects = []
+        for item in self._project_list.selectedItems():
+            code = item.data(QtCore.Qt.UserRole)
+            if code:
+                selected_projects.append(code)
+
+        # Properties
+        properties = {}
+        for key, (widget, pdef) in self._prop_widgets.items():
+            val = _read_field(widget, pdef)
+            if val is not None and val != "":
+                properties[key] = val
+
+        return {
+            "category": category,
+            "description": description,
+            "item_type": item_type,
+            "sourcing_type": sourcing_type,
+            "standard_cost": standard_cost,
+            "sourcing_link": sourcing_link,
+            "long_description": long_description,
+            "projects": selected_projects if selected_projects else None,
+            "properties": properties if properties else None,
+        }
+
+    def _on_create(self):
+        """Validate and submit the form."""
+        self._error_label.hide()
+        data = self._collect_form_data()
+
+        if not data["category"]:
+            self._error_label.setText("Category is required.")
+            self._error_label.show()
+            return
+
+        try:
+            result = self._client.create_item(
+                "kindred-rd",
+                data["category"],
+                data["description"],
+                projects=data["projects"],
+            )
+            result["_form_data"] = data
+            self.item_created.emit(result)
+        except Exception as e:
+            self._error_label.setText(f"Failed to create item: {e}")
+            self._error_label.show()
+
+
+# ---------------------------------------------------------------------------
+# Modal dialog wrapper (backward compatibility)
+# ---------------------------------------------------------------------------
+
+
+class SchemaFormDialog(QtWidgets.QDialog):
+    """Modal dialog wrapper around :class:`SchemaFormWidget`.
+
+    Provides the same ``exec_and_create()`` API as the original
+    implementation for callers that still need blocking modal behavior.
+    """
+
+    def __init__(self, client, parent=None):
+        super().__init__(parent)
+        self.setWindowTitle("New Item")
+        self.setMinimumSize(600, 500)
+        self.resize(680, 700)
+        self._result = None
+
+        layout = QtWidgets.QVBoxLayout(self)
+        layout.setContentsMargins(0, 0, 0, 0)
+        self._form = SchemaFormWidget(client, parent=self)
+        self._form.item_created.connect(self._on_created)
+        self._form.cancelled.connect(self.reject)
+        layout.addWidget(self._form)
+
+    @property
+    def _desc_edit(self):
+        """Expose description field for pre-fill by callers."""
+        return self._form._desc_edit
+
+    def _on_created(self, result):
+        self._result = result
+        self.accept()
+
+    def exec_and_create(self):
+        """Show dialog and return the creation result, or None if cancelled."""
+        if self.exec_() == QtWidgets.QDialog.Accepted:
+            return self._result
+        return None

freecad/silo_commands.py

@@ -26,7 +26,9 @@ from silo_client import (
 _PREF_GROUP = "User parameter:BaseApp/Preferences/Mod/KindredSilo"
 
 # Configuration - preferences take priority over env vars
-SILO_PROJECTS_DIR = os.environ.get("SILO_PROJECTS_DIR", os.path.expanduser("~/projects"))
+SILO_PROJECTS_DIR = os.environ.get(
+    "SILO_PROJECTS_DIR", os.path.expanduser("~/projects")
+)
 
 
 # ---------------------------------------------------------------------------
@@ -64,7 +66,9 @@ class FreeCADSiloSettings(SiloSettings):
         param = FreeCAD.ParamGet(_PREF_GROUP)
         return param.GetString("SslCertPath", "")
 
-    def save_auth(self, username: str, role: str = "", source: str = "", token: str = ""):
+    def save_auth(
+        self, username: str, role: str = "", source: str = "", token: str = ""
+    ):
         param = FreeCAD.ParamGet(_PREF_GROUP)
         param.SetString("AuthUsername", username)
         param.SetString("AuthRole", role)
@@ -122,7 +126,9 @@ def _get_ssl_verify() -> bool:
 def _get_ssl_context():
     from silo_client._ssl import build_ssl_context
 
-    return build_ssl_context(_fc_settings.get_ssl_verify(), _fc_settings.get_ssl_cert_path())
+    return build_ssl_context(
+        _fc_settings.get_ssl_verify(), _fc_settings.get_ssl_cert_path()
+    )
 
 
 def _get_auth_headers() -> Dict[str, str]:
@@ -179,7 +185,9 @@ def _fetch_server_mode() -> str:
 # Icon helper
 # ---------------------------------------------------------------------------
 
-_ICON_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)), "resources", "icons")
+_ICON_DIR = os.path.join(
+    os.path.dirname(os.path.abspath(__file__)), "resources", "icons"
+)
 
 
 def _icon(name):
@@ -206,41 +214,45 @@ def get_projects_dir() -> Path:
 def get_cad_file_path(part_number: str, description: str = "") -> Path:
     """Generate canonical file path for a CAD file.
 
-    Path format: ~/projects/cad/{category_code}_{category_name}/{part_number}_{description}.FCStd
+    Path format: ~/projects/cad/{category_code}_{category_name}/{part_number}_{description}.kc
     """
     category, _ = parse_part_number(part_number)
     folder_name = get_category_folder_name(category)
 
     if description:
-        filename = f"{part_number}_{sanitize_filename(description)}.FCStd"
+        filename = f"{part_number}_{sanitize_filename(description)}.kc"
     else:
-        filename = f"{part_number}.FCStd"
+        filename = f"{part_number}.kc"
 
     return get_projects_dir() / "cad" / folder_name / filename
 
 
 def find_file_by_part_number(part_number: str) -> Optional[Path]:
-    """Find existing CAD file for a part number."""
+    """Find existing CAD file for a part number. Prefers .kc over .FCStd."""
     category, _ = parse_part_number(part_number)
     folder_name = get_category_folder_name(category)
     cad_dir = get_projects_dir() / "cad" / folder_name
 
-    if cad_dir.exists():
-        matches = list(cad_dir.glob(f"{part_number}*.FCStd"))
-        if matches:
-            return matches[0]
-
-    base_cad_dir = get_projects_dir() / "cad"
-    if base_cad_dir.exists():
-        for subdir in base_cad_dir.iterdir():
-            if subdir.is_dir():
-                matches = list(subdir.glob(f"{part_number}*.FCStd"))
-                if matches:
-                    return matches[0]
+    for search_dir in _search_dirs(cad_dir):
+        for ext in ("*.kc", "*.FCStd"):
+            matches = list(search_dir.glob(f"{part_number}{ext[1:]}"))
+            if matches:
+                return matches[0]
 
     return None
 
 
+def _search_dirs(category_dir: Path):
+    """Yield the category dir, then all sibling dirs under cad/."""
+    if category_dir.exists():
+        yield category_dir
+    base_cad_dir = category_dir.parent
+    if base_cad_dir.exists():
+        for subdir in base_cad_dir.iterdir():
+            if subdir.is_dir() and subdir != category_dir:
+                yield subdir
+
+
 def search_local_files(search_term: str = "", category_filter: str = "") -> list:
     """Search for CAD files in local cad directory."""
     results = []
@@ -260,7 +272,9 @@ def search_local_files(search_term: str = "", category_filter: str = "") -> list
         if category_filter and category_code.upper() != category_filter.upper():
             continue
 
-        for fcstd_file in category_dir.glob("*.FCStd"):
+        for fcstd_file in sorted(
+            list(category_dir.glob("*.kc")) + list(category_dir.glob("*.FCStd"))
+        ):
             filename = fcstd_file.stem
             parts = filename.split("_", 1)
             part_number = parts[0]
@@ -574,7 +588,9 @@ def handle_kindred_url(url: str):
     parts = [parsed.netloc] + [p for p in parsed.path.split("/") if p]
     if len(parts) >= 2 and parts[0] == "item":
         part_number = parts[1]
-        FreeCAD.Console.PrintMessage(f"Silo: Opening item {part_number} from kindred:// URL\n")
+        FreeCAD.Console.PrintMessage(
+            f"Silo: Opening item {part_number} from kindred:// URL\n"
+        )
         _sync.open_item(part_number)
 
 
@@ -594,149 +610,44 @@ class Silo_Open:
         }
 
     def Activated(self):
-        from PySide import QtCore, QtGui
+        from open_search import OpenItemWidget
+        from PySide import QtGui, QtWidgets
 
-        dialog = QtGui.QDialog()
-        dialog.setWindowTitle("Silo - Open Item")
-        dialog.setMinimumWidth(700)
-        dialog.setMinimumHeight(500)
+        mw = FreeCADGui.getMainWindow()
+        mdi = mw.findChild(QtWidgets.QMdiArea)
+        if not mdi:
+            return
 
-        layout = QtGui.QVBoxLayout(dialog)
+        widget = OpenItemWidget(_client, search_local_files)
 
-        # Search row
-        search_layout = QtGui.QHBoxLayout()
-        search_input = QtGui.QLineEdit()
-        search_input.setPlaceholderText("Search by part number or description...")
-        search_layout.addWidget(search_input)
-        layout.addLayout(search_layout)
+        sw = mdi.addSubWindow(widget)
+        sw.setWindowTitle("Open Item")
+        sw.setWindowIcon(QtGui.QIcon(_icon("open")))
+        sw.show()
+        mdi.setActiveSubWindow(sw)
 
-        # Filters
-        filter_layout = QtGui.QHBoxLayout()
-        db_checkbox = QtGui.QCheckBox("Database")
-        db_checkbox.setChecked(True)
-        local_checkbox = QtGui.QCheckBox("Local Files")
-        local_checkbox.setChecked(True)
-        filter_layout.addWidget(db_checkbox)
-        filter_layout.addWidget(local_checkbox)
-        filter_layout.addStretch()
-        layout.addLayout(filter_layout)
-
-        # Results table
-        results_table = QtGui.QTableWidget()
-        results_table.setColumnCount(5)
-        results_table.setHorizontalHeaderLabels(
-            ["Part Number", "Description", "Type", "Source", "Modified"]
-        )
-        results_table.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
-        results_table.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
-        results_table.horizontalHeader().setStretchLastSection(True)
-        results_table.setEditTriggers(QtGui.QAbstractItemView.NoEditTriggers)
-        layout.addWidget(results_table)
-
-        results_data = []
-
-        def do_search():
-            nonlocal results_data
-            search_term = search_input.text().strip()
-            results_data = []
-            results_table.setRowCount(0)
-
-            if db_checkbox.isChecked():
-                try:
-                    for item in _client.list_items(search=search_term):
-                        results_data.append(
-                            {
-                                "part_number": item.get("part_number", ""),
-                                "description": item.get("description", ""),
-                                "item_type": item.get("item_type", ""),
-                                "source": "database",
-                                "modified": item.get("updated_at", "")[:10]
-                                if item.get("updated_at")
-                                else "",
-                                "path": None,
-                            }
-                        )
-                except Exception as e:
-                    FreeCAD.Console.PrintWarning(f"DB search failed: {e}\n")
-
-            if local_checkbox.isChecked():
-                try:
-                    for item in search_local_files(search_term):
-                        existing = next(
-                            (r for r in results_data if r["part_number"] == item["part_number"]),
-                            None,
-                        )
-                        if existing:
-                            existing["source"] = "both"
-                            existing["path"] = item.get("path")
-                        else:
-                            results_data.append(
-                                {
-                                    "part_number": item.get("part_number", ""),
-                                    "description": item.get("description", ""),
-                                    "item_type": "",
-                                    "source": "local",
-                                    "modified": item.get("modified", "")[:10]
-                                    if item.get("modified")
-                                    else "",
-                                    "path": item.get("path"),
-                                }
-                            )
-                except Exception as e:
-                    FreeCAD.Console.PrintWarning(f"Local search failed: {e}\n")
-
-            results_table.setRowCount(len(results_data))
-            for row, data in enumerate(results_data):
-                results_table.setItem(row, 0, QtGui.QTableWidgetItem(data["part_number"]))
-                results_table.setItem(row, 1, QtGui.QTableWidgetItem(data["description"]))
-                results_table.setItem(row, 2, QtGui.QTableWidgetItem(data["item_type"]))
-                results_table.setItem(row, 3, QtGui.QTableWidgetItem(data["source"]))
-                results_table.setItem(row, 4, QtGui.QTableWidgetItem(data["modified"]))
-            results_table.resizeColumnsToContents()
-
-        _open_after_close = [None]
-
-        def open_selected():
-            selected = results_table.selectedItems()
-            if not selected:
-                return
-            row = selected[0].row()
-            _open_after_close[0] = dict(results_data[row])
-            dialog.accept()
-
-        search_input.textChanged.connect(lambda: do_search())
-        results_table.doubleClicked.connect(open_selected)
-
-        # Buttons
-        btn_layout = QtGui.QHBoxLayout()
-        open_btn = QtGui.QPushButton("Open")
-        open_btn.clicked.connect(open_selected)
-        cancel_btn = QtGui.QPushButton("Cancel")
-        cancel_btn.clicked.connect(dialog.reject)
-        btn_layout.addStretch()
-        btn_layout.addWidget(open_btn)
-        btn_layout.addWidget(cancel_btn)
-        layout.addLayout(btn_layout)
-
-        do_search()
-        dialog.exec_()
-
-        # Open the document AFTER the dialog has fully closed so that
-        # heavy document loads (especially Assembly files) don't run
-        # inside the dialog's nested event loop, which can cause crashes.
-        data = _open_after_close[0]
-        if data is not None:
+        def _on_selected(data):
+            sw.close()
             if data.get("path"):
                 FreeCAD.openDocument(data["path"])
             else:
                 _sync.open_item(data["part_number"])
 
+        widget.item_selected.connect(_on_selected)
+        widget.cancelled.connect(sw.close)
+
     def IsActive(self):
         return True
 
 
 class Silo_New:
-    """Create new item with part number."""
+    """Create new item with part number.
+
+    Opens a pre-document MDI tab containing the schema-driven creation
+    form.  Each invocation opens a new tab so multiple items can be
+    prepared in parallel.  On successful creation the tab closes and
+    the real document opens in its place.
+    """
 
     def GetResources(self):
         return {
@@ -746,117 +657,88 @@ class Silo_New:
         }
 
     def Activated(self):
-        from PySide import QtGui
+        from PySide import QtGui, QtWidgets
+        from schema_form import SchemaFormWidget
 
-        sel = FreeCADGui.Selection.getSelection()
-
-        # Category selection
-        try:
-            schema = _client.get_schema()
-            categories = schema.get("segments", [])
-            cat_segment = next((s for s in categories if s.get("name") == "category"), None)
-            if cat_segment and cat_segment.get("values"):
-                cat_list = [f"{k} - {v}" for k, v in sorted(cat_segment["values"].items())]
-                category_str, ok = QtGui.QInputDialog.getItem(
-                    None, "New Item", "Category:", cat_list, 0, False
-                )
-                if not ok:
-                    return
-                category = category_str.split(" - ")[0]
-            else:
-                category, ok = QtGui.QInputDialog.getText(None, "New Item", "Category code:")
-                if not ok:
-                    return
-        except Exception:
-            category, ok = QtGui.QInputDialog.getText(None, "New Item", "Category code:")
-            if not ok:
-                return
-
-        # Description
-        default_desc = sel[0].Label if sel else ""
-        description, ok = QtGui.QInputDialog.getText(
-            None, "New Item", "Description:", text=default_desc
-        )
-        if not ok:
+        mw = FreeCADGui.getMainWindow()
+        mdi = mw.findChild(QtWidgets.QMdiArea)
+        if not mdi:
             return
 
-        # Optional project tagging
-        selected_projects = []
-        try:
-            projects = _client.get_projects()
-            if projects:
-                project_codes = [p.get("code", "") for p in projects if p.get("code")]
-                if project_codes:
-                    # Multi-select dialog for projects
-                    dialog = QtGui.QDialog()
-                    dialog.setWindowTitle("Tag with Projects (Optional)")
-                    dialog.setMinimumWidth(300)
-                    layout = QtGui.QVBoxLayout(dialog)
+        # Each invocation creates a new pre-document tab
+        form = SchemaFormWidget(_client)
 
-                    label = QtGui.QLabel("Select projects to tag this item with:")
-                    layout.addWidget(label)
+        # Pre-fill description from current selection
+        sel = FreeCADGui.Selection.getSelection()
+        if sel:
+            form._desc_edit.setText(sel[0].Label)
 
-                    list_widget = QtGui.QListWidget()
-                    list_widget.setSelectionMode(QtGui.QAbstractItemView.MultiSelection)
-                    for code in project_codes:
-                        list_widget.addItem(code)
-                    layout.addWidget(list_widget)
+        # Add as MDI subwindow (appears as a tab alongside documents)
+        sw = mdi.addSubWindow(form)
+        sw.setWindowTitle("New Item")
+        sw.setWindowIcon(QtGui.QIcon(_icon("new")))
+        sw.show()
+        mdi.setActiveSubWindow(sw)
 
-                    btn_layout = QtGui.QHBoxLayout()
-                    skip_btn = QtGui.QPushButton("Skip")
-                    ok_btn = QtGui.QPushButton("Tag Selected")
-                    btn_layout.addWidget(skip_btn)
-                    btn_layout.addWidget(ok_btn)
-                    layout.addLayout(btn_layout)
-
-                    skip_btn.clicked.connect(dialog.reject)
-                    ok_btn.clicked.connect(dialog.accept)
-
-                    if dialog.exec_() == QtGui.QDialog.Accepted:
-                        selected_projects = [item.text() for item in list_widget.selectedItems()]
-        except Exception as e:
-            FreeCAD.Console.PrintWarning(f"Could not fetch projects: {e}\n")
-
-        try:
-            result = _client.create_item(
-                "kindred-rd",
-                category,
-                description,
-                projects=selected_projects if selected_projects else None,
-            )
+        # On creation: process result, close tab, open real document
+        def _on_created(result):
             part_number = result["part_number"]
 
-            if sel:
-                # Tag selected object
-                obj = sel[0]
-                set_silo_properties(
-                    obj,
-                    {
-                        "SiloItemId": result.get("id", ""),
-                        "SiloPartNumber": part_number,
-                        "SiloRevision": 1,
-                    },
-                )
-                obj.Label = part_number
-                _sync.save_to_canonical_path(FreeCAD.ActiveDocument, force_rename=True)
-            else:
-                # Create new document
-                _sync.create_document_for_item(result, save=True)
+            try:
+                sel_now = FreeCADGui.Selection.getSelection()
+                if sel_now:
+                    obj = sel_now[0]
+                    set_silo_properties(
+                        obj,
+                        {
+                            "SiloItemId": result.get("id", ""),
+                            "SiloPartNumber": part_number,
+                            "SiloRevision": 1,
+                        },
+                    )
+                    obj.Label = part_number
+                    _sync.save_to_canonical_path(
+                        FreeCAD.ActiveDocument, force_rename=True
+                    )
+                else:
+                    _sync.create_document_for_item(result, save=True)
 
-            msg = f"Part number: {part_number}"
-            if selected_projects:
-                msg += f"\nTagged with projects: {', '.join(selected_projects)}"
+                FreeCAD.Console.PrintMessage(f"Created: {part_number}\n")
+            except Exception as e:
+                FreeCAD.Console.PrintError(f"Failed to process created item: {e}\n")
 
-            FreeCAD.Console.PrintMessage(f"Created: {part_number}\n")
-            QtGui.QMessageBox.information(None, "Item Created", msg)
+            # Close the pre-document tab
+            sw.close()
 
-        except Exception as e:
-            QtGui.QMessageBox.critical(None, "Error", str(e))
+        form.item_created.connect(_on_created)
+        form.cancelled.connect(sw.close)
 
     def IsActive(self):
         return _server_mode == "normal"
 
 
+def _push_dag_after_upload(doc, part_number, revision_number):
+    """Extract and push the feature DAG after a successful upload.
+
+    Failures are logged as warnings -- DAG sync must never block save.
+    """
+    try:
+        from dag import extract_dag
+
+        nodes, edges = extract_dag(doc)
+        if not nodes:
+            return
+
+        result = _client.push_dag(part_number, revision_number, nodes, edges)
+        node_count = result.get("node_count", len(nodes))
+        edge_count = result.get("edge_count", len(edges))
+        FreeCAD.Console.PrintMessage(
+            f"DAG synced: {node_count} nodes, {edge_count} edges\n"
+        )
+    except Exception as e:
+        FreeCAD.Console.PrintWarning(f"DAG sync failed: {e}\n")
+
+
 class Silo_Save:
     """Save locally and upload to MinIO."""
 
@@ -920,11 +802,15 @@ class Silo_Save:
 
         # Try to upload to MinIO
         try:
-            result = _client._upload_file(part_number, str(file_path), properties, "Auto-save")
+            result = _client._upload_file(
+                part_number, str(file_path), properties, "Auto-save"
+            )
 
             new_rev = result["revision_number"]
             FreeCAD.Console.PrintMessage(f"Uploaded as revision {new_rev}\n")
 
+            _push_dag_after_upload(doc, part_number, new_rev)
+
         except Exception as e:
             FreeCAD.Console.PrintWarning(f"Upload failed: {e}\n")
             FreeCAD.Console.PrintMessage("File saved locally but not uploaded.\n")
@@ -953,7 +839,9 @@ class Silo_Commit:
 
         obj = get_tracked_object(doc)
         if not obj:
-            FreeCAD.Console.PrintError("No tracked object. Use 'New' to register first.\n")
+            FreeCAD.Console.PrintError(
+                "No tracked object. Use 'New' to register first.\n"
+            )
             return
 
         part_number = obj.SiloPartNumber
@@ -970,11 +858,15 @@ class Silo_Commit:
             if not file_path:
                 return
 
-            result = _client._upload_file(part_number, str(file_path), properties, comment)
+            result = _client._upload_file(
+                part_number, str(file_path), properties, comment
+            )
 
             new_rev = result["revision_number"]
             FreeCAD.Console.PrintMessage(f"Committed revision {new_rev}: {comment}\n")
 
+            _push_dag_after_upload(doc, part_number, new_rev)
+
         except Exception as e:
             FreeCAD.Console.PrintError(f"Commit failed: {e}\n")
 
@@ -1019,7 +911,9 @@ def _check_pull_conflicts(part_number, local_path, doc=None):
             server_updated = item.get("updated_at", "")
             if server_updated:
                 # Parse ISO format timestamp
-                server_dt = datetime.datetime.fromisoformat(server_updated.replace("Z", "+00:00"))
+                server_dt = datetime.datetime.fromisoformat(
+                    server_updated.replace("Z", "+00:00")
+                )
                 if server_dt > local_mtime:
                     conflicts.append("Server version is newer than local file.")
         except Exception:
@@ -1049,7 +943,9 @@ class SiloPullDialog:
         # Revision table
         self._table = QtGui.QTableWidget()
         self._table.setColumnCount(5)
-        self._table.setHorizontalHeaderLabels(["Rev", "Date", "Comment", "Status", "File"])
+        self._table.setHorizontalHeaderLabels(
+            ["Rev", "Date", "Comment", "Status", "File"]
+        )
         self._table.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
         self._table.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
         self._table.setEditTriggers(QtGui.QAbstractItemView.NoEditTriggers)
@@ -1121,6 +1017,67 @@ class SiloPullDialog:
         return None
 
 
+def _pull_dependencies(part_number, progress_callback=None):
+    """Recursively pull all BOM children that have files on the server.
+
+    Returns list of (part_number, dest_path) tuples for successfully pulled files.
+    Skips children that already exist locally.
+    """
+    pulled = []
+    try:
+        bom = _client.get_bom(part_number)
+    except Exception as e:
+        FreeCAD.Console.PrintWarning(f"Could not fetch BOM for {part_number}: {e}\n")
+        return pulled
+
+    for entry in bom:
+        child_pn = entry.get("child_part_number")
+        if not child_pn:
+            continue
+
+        # Skip if already exists locally
+        existing = find_file_by_part_number(child_pn)
+        if existing and existing.exists():
+            FreeCAD.Console.PrintMessage(
+                f"  {child_pn}: already exists at {existing}\n"
+            )
+            # Still recurse — this child may itself be an assembly with missing deps
+            _pull_dependencies(child_pn, progress_callback)
+            continue
+
+        # Check if this child has a file on the server
+        try:
+            latest = _client.latest_file_revision(child_pn)
+        except Exception:
+            latest = None
+
+        if not latest or not latest.get("file_key"):
+            FreeCAD.Console.PrintMessage(f"  {child_pn}: no file on server, skipping\n")
+            continue
+
+        # Determine destination path
+        child_desc = entry.get("child_description", "")
+        dest_path = get_cad_file_path(child_pn, child_desc)
+        dest_path.parent.mkdir(parents=True, exist_ok=True)
+
+        rev_num = latest["revision_number"]
+        FreeCAD.Console.PrintMessage(f"  Pulling {child_pn} rev {rev_num}...\n")
+
+        try:
+            ok = _client._download_file(
+                child_pn, rev_num, str(dest_path), progress_callback=progress_callback
+            )
+            if ok:
+                pulled.append((child_pn, dest_path))
+        except Exception as e:
+            FreeCAD.Console.PrintWarning(f"  Failed to pull {child_pn}: {e}\n")
+
+        # Recurse into child (it may be a sub-assembly)
+        _pull_dependencies(child_pn, progress_callback)
+
+    return pulled
+
+
 class Silo_Pull:
     """Download from MinIO / sync from database."""
 
@@ -1163,14 +1120,18 @@ class Silo_Pull:
 
         if not has_any_file:
             if existing_local:
-                FreeCAD.Console.PrintMessage(f"Opening existing local file: {existing_local}\n")
+                FreeCAD.Console.PrintMessage(
+                    f"Opening existing local file: {existing_local}\n"
+                )
                 FreeCAD.openDocument(str(existing_local))
             else:
                 try:
                     item = _client.get_item(part_number)
                     new_doc = _sync.create_document_for_item(item, save=True)
                     if new_doc:
-                        FreeCAD.Console.PrintMessage(f"Created local file for {part_number}\n")
+                        FreeCAD.Console.PrintMessage(
+                            f"Created local file for {part_number}\n"
+                        )
                     else:
                         QtGui.QMessageBox.warning(
                             None,
@@ -1248,6 +1209,19 @@ class Silo_Pull:
 
         FreeCAD.Console.PrintMessage(f"Pulled revision {rev_num} of {part_number}\n")
 
+        # Pull assembly dependencies before opening so links resolve
+        if item.get("item_type") == "assembly":
+            progress.setLabelText(f"Pulling dependencies for {part_number}...")
+            progress.setValue(0)
+            progress.show()
+            dep_pulled = _pull_dependencies(part_number, progress_callback=on_progress)
+            progress.setValue(100)
+            progress.close()
+            if dep_pulled:
+                FreeCAD.Console.PrintMessage(
+                    f"Pulled {len(dep_pulled)} dependency file(s)\n"
+                )
+
         # Close existing document if open, then reopen
         if doc and doc.FileName == str(dest_path):
             FreeCAD.closeDocument(doc.Name)
@@ -1301,7 +1275,9 @@ class Silo_Push:
                             server_dt = datetime.fromisoformat(
                                 server_time_str.replace("Z", "+00:00")
                             )
-                            local_dt = datetime.fromtimestamp(local_mtime, tz=timezone.utc)
+                            local_dt = datetime.fromtimestamp(
+                                local_mtime, tz=timezone.utc
+                            )
                             if local_dt > server_dt:
                                 unuploaded.append(lf)
                         else:
@@ -1314,7 +1290,9 @@ class Silo_Push:
                 pass  # Not in DB, skip
 
         if not unuploaded:
-            QtGui.QMessageBox.information(None, "Push", "All local files are already uploaded.")
+            QtGui.QMessageBox.information(
+                None, "Push", "All local files are already uploaded."
+            )
             return
 
         msg = f"Found {len(unuploaded)} files to upload:\n\n"
@@ -1332,7 +1310,9 @@ class Silo_Push:
 
         uploaded = 0
         for item in unuploaded:
-            result = _sync.upload_file(item["part_number"], item["path"], "Synced from local")
+            result = _sync.upload_file(
+                item["part_number"], item["path"], "Synced from local"
+            )
             if result:
                 uploaded += 1
 
@@ -1381,9 +1361,7 @@ class Silo_Info:
             msg = f"<h3>{part_number}</h3>"
             msg += f"<p><b>Type:</b> {item.get('item_type', '-')}</p>"
             msg += f"<p><b>Description:</b> {item.get('description', '-')}</p>"
-            msg += (
-                f"<p><b>Projects:</b> {', '.join(project_codes) if project_codes else 'None'}</p>"
-            )
+            msg += f"<p><b>Projects:</b> {', '.join(project_codes) if project_codes else 'None'}</p>"
             msg += f"<p><b>Current Revision:</b> {item.get('current_revision', 1)}</p>"
             msg += f"<p><b>Local Revision:</b> {getattr(obj, 'SiloRevision', '-')}</p>"
 
@@ -1449,7 +1427,9 @@ class Silo_TagProjects:
         try:
             # Get current projects for item
             current_projects = _client.get_item_projects(part_number)
-            current_codes = {p.get("code", "") for p in current_projects if p.get("code")}
+            current_codes = {
+                p.get("code", "") for p in current_projects if p.get("code")
+            }
 
             # Get all available projects
             all_projects = _client.get_projects()
@@ -1560,7 +1540,9 @@ class Silo_Rollback:
             dialog.setMinimumHeight(300)
             layout = QtGui.QVBoxLayout(dialog)
 
-            label = QtGui.QLabel(f"Select a revision to rollback to (current: Rev {current_rev}):")
+            label = QtGui.QLabel(
+                f"Select a revision to rollback to (current: Rev {current_rev}):"
+            )
             layout.addWidget(label)
 
             # Revision table
@@ -1575,8 +1557,12 @@ class Silo_Rollback:
             for i, rev in enumerate(prev_revisions):
                 table.setItem(i, 0, QtGui.QTableWidgetItem(str(rev["revision_number"])))
                 table.setItem(i, 1, QtGui.QTableWidgetItem(rev.get("status", "draft")))
-                table.setItem(i, 2, QtGui.QTableWidgetItem(rev.get("created_at", "")[:10]))
-                table.setItem(i, 3, QtGui.QTableWidgetItem(rev.get("comment", "") or ""))
+                table.setItem(
+                    i, 2, QtGui.QTableWidgetItem(rev.get("created_at", "")[:10])
+                )
+                table.setItem(
+                    i, 3, QtGui.QTableWidgetItem(rev.get("comment", "") or "")
+                )
 
             table.resizeColumnsToContents()
             layout.addWidget(table)
@@ -1602,7 +1588,9 @@ class Silo_Rollback:
             def on_rollback():
                 selected = table.selectedItems()
                 if not selected:
-                    QtGui.QMessageBox.warning(dialog, "Rollback", "Please select a revision")
+                    QtGui.QMessageBox.warning(
+                        dialog, "Rollback", "Please select a revision"
+                    )
                     return
                 selected_rev[0] = int(table.item(selected[0].row(), 0).text())
                 dialog.accept()
@@ -1700,7 +1688,9 @@ class Silo_SetStatus:
             # Update status
             _client.update_revision(part_number, rev_num, status=status)
 
-            FreeCAD.Console.PrintMessage(f"Updated Rev {rev_num} status to '{status}'\n")
+            FreeCAD.Console.PrintMessage(
+                f"Updated Rev {rev_num} status to '{status}'\n"
+            )
             QtGui.QMessageBox.information(
                 None, "Status Updated", f"Revision {rev_num} status set to '{status}'"
             )
@@ -1764,7 +1754,9 @@ class Silo_Settings:
         ssl_checkbox.setChecked(param.GetBool("SslVerify", True))
         layout.addWidget(ssl_checkbox)
 
-        ssl_hint = QtGui.QLabel("Disable only for internal servers with self-signed certificates.")
+        ssl_hint = QtGui.QLabel(
+            "Disable only for internal servers with self-signed certificates."
+        )
         ssl_hint.setWordWrap(True)
         ssl_hint.setStyleSheet("color: #888; font-size: 11px;")
         layout.addWidget(ssl_hint)
@@ -1797,7 +1789,7 @@ class Silo_Settings:
             path, _ = QtGui.QFileDialog.getOpenFileName(
                 dialog,
                 "Select CA Certificate",
-                os.path.dirname(cert_input.text()) or "/etc/ssl/certs",
+                os.path.dirname(cert_input.text()) or os.path.expanduser("~"),
                 "Certificates (*.pem *.crt *.cer);;All Files (*)",
             )
             if path:
@@ -2041,7 +2033,9 @@ class Silo_BOM:
 
         wu_table = QtGui.QTableWidget()
         wu_table.setColumnCount(5)
-        wu_table.setHorizontalHeaderLabels(["Parent Part Number", "Type", "Qty", "Unit", "Ref Des"])
+        wu_table.setHorizontalHeaderLabels(
+            ["Parent Part Number", "Type", "Qty", "Unit", "Ref Des"]
+        )
         wu_table.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
         wu_table.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
         wu_table.setEditTriggers(QtGui.QAbstractItemView.NoEditTriggers)
@@ -2070,12 +2064,16 @@ class Silo_BOM:
                 bom_table.setItem(
                     row, 1, QtGui.QTableWidgetItem(entry.get("child_description", ""))
                 )
-                bom_table.setItem(row, 2, QtGui.QTableWidgetItem(entry.get("rel_type", "")))
+                bom_table.setItem(
+                    row, 2, QtGui.QTableWidgetItem(entry.get("rel_type", ""))
+                )
                 qty = entry.get("quantity")
                 bom_table.setItem(
                     row, 3, QtGui.QTableWidgetItem(str(qty) if qty is not None else "")
                 )
-                bom_table.setItem(row, 4, QtGui.QTableWidgetItem(entry.get("unit") or ""))
+                bom_table.setItem(
+                    row, 4, QtGui.QTableWidgetItem(entry.get("unit") or "")
+                )
                 ref_des = entry.get("reference_designators") or []
                 bom_table.setItem(row, 5, QtGui.QTableWidgetItem(", ".join(ref_des)))
                 bom_table.setItem(
@@ -2097,12 +2095,16 @@ class Silo_BOM:
                 wu_table.setItem(
                     row, 0, QtGui.QTableWidgetItem(entry.get("parent_part_number", ""))
                 )
-                wu_table.setItem(row, 1, QtGui.QTableWidgetItem(entry.get("rel_type", "")))
+                wu_table.setItem(
+                    row, 1, QtGui.QTableWidgetItem(entry.get("rel_type", ""))
+                )
                 qty = entry.get("quantity")
                 wu_table.setItem(
                     row, 2, QtGui.QTableWidgetItem(str(qty) if qty is not None else "")
                 )
-                wu_table.setItem(row, 3, QtGui.QTableWidgetItem(entry.get("unit") or ""))
+                wu_table.setItem(
+                    row, 3, QtGui.QTableWidgetItem(entry.get("unit") or "")
+                )
                 ref_des = entry.get("reference_designators") or []
                 wu_table.setItem(row, 4, QtGui.QTableWidgetItem(", ".join(ref_des)))
             wu_table.resizeColumnsToContents()
@@ -2155,7 +2157,9 @@ class Silo_BOM:
                 try:
                     qty = float(qty_text)
                 except ValueError:
-                    QtGui.QMessageBox.warning(dialog, "BOM", "Quantity must be a number.")
+                    QtGui.QMessageBox.warning(
+                        dialog, "BOM", "Quantity must be a number."
+                    )
                     return
 
             unit = unit_input.text().strip() or None
@@ -2234,7 +2238,9 @@ class Silo_BOM:
                 try:
                     new_qty = float(qty_text)
                 except ValueError:
-                    QtGui.QMessageBox.warning(dialog, "BOM", "Quantity must be a number.")
+                    QtGui.QMessageBox.warning(
+                        dialog, "BOM", "Quantity must be a number."
+                    )
                     return
 
             new_unit = unit_input.text().strip() or None
@@ -2258,7 +2264,9 @@ class Silo_BOM:
                 )
                 load_bom()
             except Exception as exc:
-                QtGui.QMessageBox.warning(dialog, "BOM", f"Failed to update entry:\n{exc}")
+                QtGui.QMessageBox.warning(
+                    dialog, "BOM", f"Failed to update entry:\n{exc}"
+                )
 
         def on_remove():
             selected = bom_table.selectedItems()
@@ -2284,7 +2292,9 @@ class Silo_BOM:
                 _client.delete_bom_entry(part_number, child_pn)
                 load_bom()
             except Exception as exc:
-                QtGui.QMessageBox.warning(dialog, "BOM", f"Failed to remove entry:\n{exc}")
+                QtGui.QMessageBox.warning(
+                    dialog, "BOM", f"Failed to remove entry:\n{exc}"
+                )
 
         add_btn.clicked.connect(on_add)
         edit_btn.clicked.connect(on_edit)
@@ -2323,7 +2333,9 @@ class SiloEventListener(QtCore.QThread):
 
     item_updated = QtCore.Signal(str)  # part_number
     revision_created = QtCore.Signal(str, int)  # part_number, revision
-    connection_status = QtCore.Signal(str, int, str)  # (status, retry_count, error_message)
+    connection_status = QtCore.Signal(
+        str, int, str
+    )  # (status, retry_count, error_message)
     server_mode_changed = QtCore.Signal(str)  # "normal" / "read-only" / "degraded"
 
     _MAX_RETRIES = 10
@@ -2350,23 +2362,30 @@ class SiloEventListener(QtCore.QThread):
     # -- thread entry -------------------------------------------------------
 
     def run(self):
+        import time
+
         retries = 0
         last_error = ""
         while not self._stop_flag:
+            t0 = time.monotonic()
             try:
                 self._listen()
                 # _listen returns normally only on clean EOF / stop
                 if self._stop_flag:
                     return
-                retries += 1
                 last_error = "connection closed"
             except _SSEUnsupported:
                 self.connection_status.emit("unsupported", 0, "")
                 return
             except Exception as exc:
-                retries += 1
                 last_error = str(exc) or "unknown error"
 
+            # Reset retries if the connection was up for a while
+            elapsed = time.monotonic() - t0
+            if elapsed > 30:
+                retries = 0
+            retries += 1
+
             if retries > self._MAX_RETRIES:
                 self.connection_status.emit("gave_up", retries - 1, last_error)
                 return
@@ -2390,7 +2409,9 @@ class SiloEventListener(QtCore.QThread):
         req = urllib.request.Request(url, headers=headers, method="GET")
 
         try:
-            self._response = urllib.request.urlopen(req, context=_get_ssl_context(), timeout=90)
+            self._response = urllib.request.urlopen(
+                req, context=_get_ssl_context(), timeout=90
+            )
         except urllib.error.HTTPError as e:
             if e.code in (404, 501):
                 raise _SSEUnsupported()
@@ -2671,7 +2692,9 @@ class SiloAuthDockWidget:
             self._sse_label.setToolTip("")
             FreeCAD.Console.PrintMessage("Silo: SSE connected\n")
         elif status == "disconnected":
-            self._sse_label.setText(f"Reconnecting ({retry}/{SiloEventListener._MAX_RETRIES})...")
+            self._sse_label.setText(
+                f"Reconnecting ({retry}/{SiloEventListener._MAX_RETRIES})..."
+            )
             self._sse_label.setStyleSheet("font-size: 11px; color: #FF9800;")
             self._sse_label.setToolTip(error or "Connection lost")
             FreeCAD.Console.PrintWarning(
@@ -2681,7 +2704,9 @@ class SiloAuthDockWidget:
             self._sse_label.setText("Disconnected")
             self._sse_label.setStyleSheet("font-size: 11px; color: #F44336;")
             self._sse_label.setToolTip(error or "Max retries reached")
-            FreeCAD.Console.PrintError(f"Silo: SSE gave up after {retry} retries: {error}\n")
+            FreeCAD.Console.PrintError(
+                f"Silo: SSE gave up after {retry} retries: {error}\n"
+            )
         elif status == "unsupported":
             self._sse_label.setText("Not available")
             self._sse_label.setStyleSheet("font-size: 11px; color: #888;")
@@ -2723,10 +2748,14 @@ class SiloAuthDockWidget:
         self._refresh_activity_panel()
 
     def _on_remote_revision(self, part_number, revision):
-        FreeCAD.Console.PrintMessage(f"Silo: New revision {revision} for {part_number}\n")
+        FreeCAD.Console.PrintMessage(
+            f"Silo: New revision {revision} for {part_number}\n"
+        )
         mw = FreeCADGui.getMainWindow()
         if mw is not None:
-            mw.statusBar().showMessage(f"Silo: {part_number} rev {revision} available", 5000)
+            mw.statusBar().showMessage(
+                f"Silo: {part_number} rev {revision} available", 5000
+            )
         self._refresh_activity_panel()
 
     def _refresh_activity_panel(self):
@@ -2792,7 +2821,9 @@ class SiloAuthDockWidget:
                     rev_part = f" \u2013 Rev {rev_num}" if rev_num else ""
                     date_part = f" \u2013 {updated}" if updated else ""
                     local_badge = " \u25cf local" if pn in local_pns else ""
-                    line1 = f"{pn} \u2013 {desc_display}{rev_part}{date_part}{local_badge}"
+                    line1 = (
+                        f"{pn} \u2013 {desc_display}{rev_part}{date_part}{local_badge}"
+                    )
 
                     if comment:
                         line1 += f'\n  "{comment}"'
@@ -3248,7 +3279,9 @@ class Silo_StartPanel:
         dock = QtGui.QDockWidget("Silo", mw)
         dock.setObjectName("SiloStartPanel")
         dock.setWidget(content.widget)
-        dock.setAllowedAreas(QtCore.Qt.LeftDockWidgetArea | QtCore.Qt.RightDockWidgetArea)
+        dock.setAllowedAreas(
+            QtCore.Qt.LeftDockWidgetArea | QtCore.Qt.RightDockWidgetArea
+        )
         mw.addDockWidget(QtCore.Qt.LeftDockWidgetArea, dock)
 
     def IsActive(self):
@@ -3282,7 +3315,9 @@ class _DiagWorker(QtCore.QThread):
             self.result.emit("DNS", False, "no hostname in URL")
             return
         try:
-            addrs = socket.getaddrinfo(hostname, None, socket.AF_UNSPEC, socket.SOCK_STREAM)
+            addrs = socket.getaddrinfo(
+                hostname, None, socket.AF_UNSPEC, socket.SOCK_STREAM
+            )
             first_ip = addrs[0][4][0] if addrs else "?"
             self.result.emit("DNS", True, f"{hostname} -> {first_ip}")
         except socket.gaierror as e:

freecad/silo_origin.py

@@ -392,12 +392,17 @@ class SiloOrigin:
                 obj.SiloPartNumber, str(file_path), properties, comment=""
             )
 
-            # Clear modified flag
-            doc.Modified = False
+            # Clear modified flag (Modified is on Gui.Document, not App.Document)
+            gui_doc = FreeCADGui.getDocument(doc.Name)
+            if gui_doc:
+                gui_doc.Modified = False
 
             return True
         except Exception as e:
+            import traceback
+
             FreeCAD.Console.PrintError(f"Silo save failed: {e}\n")
+            FreeCAD.Console.PrintError(traceback.format_exc())
             return False
 
     def saveDocumentAs(self, doc, newIdentity: str) -> bool: