Apply offline wiresheet rules to live mode: meta positions and links

Three fixes so live wiresheets render identically to offline .sax files:

1. Inherit sys::Component base slots (meta) into every type's slot
   registry so component x/y positions are read from the device.

2. Place <link> elements under a <links> container element instead of
   directly under <app>, matching the .sax structure that draw_links
   and build_linked_slot_index expect.

3. Deduplicate links (each link appears on both endpoints in Sox) so
   wires are not drawn twice.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app_state.py

@@ -8,7 +8,7 @@ so later rebinding would only ever be seen by the module that did it.
 import configparser
 import os
 
-VERSION = "0.0.0.083"
+VERSION = "0.0.0.084"
 PROPERTIES_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), "editor.properties")
 DEFAULT_GRID_SIZE = 10
 DEFAULT_ADD_TIMESTAMP = True

device_session.py

@@ -68,15 +68,49 @@ class DeviceSession:
     def _load_slot_registry(self, parts):
         """Builds slot_registry from kit manifests for the device's schema."""
         registry = {}
+        base_slots = []
         for kit_id, part in enumerate(parts):
             kit_name = part.name
             checksum = part.checksum
             manifest = schema.find_manifest(kit_name, checksum)
             if manifest is None:
                 continue
+            if kit_name == "sys":
+                base_slots = self._extract_component_base_slots(manifest)
             self._register_kit_types(registry, kit_id, kit_name, manifest)
+        # Prepend inherited Component base slots (meta, etc.) to every type
+        if base_slots:
+            for key in registry:
+                existing_names = {s["name"] for s in registry[key]}
+                for bs in base_slots:
+                    if bs["name"] not in existing_names:
+                        registry[key].insert(0, bs)
         self.sox_client.slot_registry = registry
 
+    def _extract_component_base_slots(self, manifest):
+        """Extracts base slots from sys::Component that all types inherit."""
+        for type_elem in manifest.iter("type"):
+            if type_elem.get("name") == "Component":
+                slots = []
+                for slot_elem in type_elem.iter("slot"):
+                    slot_name = slot_elem.get("name", "")
+                    slot_id = int(slot_elem.get("id", "-1"))
+                    slot_type = slot_elem.get("type", "int")
+                    flags_str = slot_elem.get("flags", "")
+                    slots.append({
+                        "name": slot_name,
+                        "id": slot_id,
+                        "type_name": slot_type,
+                        "is_config": "c" in flags_str or "p" in flags_str,
+                        "is_runtime": "r" in flags_str,
+                        "is_action": "a" in flags_str,
+                        "is_operator": "o" in flags_str,
+                        "is_as_str": slot_type == "Str",
+                        "is_prop": "a" not in flags_str,
+                    })
+                return slots
+        return []
+
     def _register_kit_types(self, registry, kit_id, kit_name, manifest):
         root = manifest
         for type_elem in root.iter("type"):
@@ -239,14 +273,22 @@ class DeviceSession:
         return comp_elem
 
     def build_links_elements(self, sax_root):
-        """Adds <link> elements under the app element from cached link data."""
+        """Adds <link> elements under a <links> container, matching .sax structure."""
-        app_elem = sax_root.find("app")
+        links_elem = sax_root.find("links")
-        if app_elem is None:
+        if links_elem is None:
-            return
+            links_elem = ET.SubElement(sax_root, "links")
+
+        seen = set()
         for c in self.sox_client.cache:
             if c is None:
                 continue
             for lnk in c.links:
+                link_key = (lnk.from_comp_id, lnk.from_slot_id,
+                            lnk.to_comp_id, lnk.to_slot_id)
+                if link_key in seen:
+                    continue
+                seen.add(link_key)
+
                 from_comp = self.sox_client.cache_get(lnk.from_comp_id)
                 to_comp = self.sox_client.cache_get(lnk.to_comp_id)
                 if from_comp is None or to_comp is None:
@@ -261,7 +303,7 @@ class DeviceSession:
                 to_path = self._comp_path(lnk.to_comp_id)
 
                 if from_path and to_path and from_slot_name and to_slot_name:
-                    ET.SubElement(app_elem, "link",
+                    ET.SubElement(links_elem, "link",
                                   **{"from": f"{from_path}.{from_slot_name}",
                                      "to": f"{to_path}.{to_slot_name}"})