Migrate frontend to plugin-based asset architecture

- Add equipmentApi and computersApi to replace legacy machinesApi
- Add controller vendor/model fields to Equipment model and forms
- Fix map marker navigation to use plugin-specific IDs (equipmentid,
  computerid, printerid, networkdeviceid) instead of assetid
- Fix search to use unified Asset table with correct plugin IDs
- Remove legacy printer search that used non-existent field names
- Enable optional JWT auth for detail endpoints (public read access)
- Clean up USB plugin models (remove unused checkout model)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

shopdb/core/models/asset.py

@@ -156,12 +156,52 @@ class Asset(BaseModel, SoftDeleteMixin, AuditMixin):
         comm = self.communications.filter_by(comtypeid=1).first()
         return comm.ipaddress if comm else None
 
-    def to_dict(self, include_type_data=False):
+    def get_inherited_location(self):
+        """
+        Get location data from a related asset if this asset has none.
+
+        Returns dict with locationid, location_name, mapleft, maptop, and
+        inherited_from (assetnumber of source asset) if location was inherited.
+        Returns None if no location data available.
+        """
+        # If we have our own location data, don't inherit
+        if self.locationid is not None or (self.mapleft is not None and self.maptop is not None):
+            return None
+
+        # Check related assets for location data
+        # Look in both incoming and outgoing relationships
+        related_assets = []
+
+        if hasattr(self, 'incoming_relationships'):
+            for rel in self.incoming_relationships:
+                if rel.source_asset and rel.isactive:
+                    related_assets.append(rel.source_asset)
+
+        if hasattr(self, 'outgoing_relationships'):
+            for rel in self.outgoing_relationships:
+                if rel.target_asset and rel.isactive:
+                    related_assets.append(rel.target_asset)
+
+        # Find first related asset with location data
+        for related in related_assets:
+            if related.locationid is not None or (related.mapleft is not None and related.maptop is not None):
+                return {
+                    'locationid': related.locationid,
+                    'location_name': related.location.locationname if related.location else None,
+                    'mapleft': related.mapleft,
+                    'maptop': related.maptop,
+                    'inherited_from': related.assetnumber
+                }
+
+        return None
+
+    def to_dict(self, include_type_data=False, include_inherited_location=True):
         """
         Convert model to dictionary.
 
         Args:
             include_type_data: If True, include category-specific data from extension table
+            include_inherited_location: If True, include location from related assets when missing
         """
         result = super().to_dict()
 
@@ -175,6 +215,30 @@ class Asset(BaseModel, SoftDeleteMixin, AuditMixin):
         if self.businessunit:
             result['businessunit_name'] = self.businessunit.businessunit
 
+        # Add plugin-specific ID for navigation purposes
+        if hasattr(self, 'equipment') and self.equipment:
+            result['plugin_id'] = self.equipment.equipmentid
+        elif hasattr(self, 'computer') and self.computer:
+            result['plugin_id'] = self.computer.computerid
+        elif hasattr(self, 'network_device') and self.network_device:
+            result['plugin_id'] = self.network_device.networkdeviceid
+        elif hasattr(self, 'printer') and self.printer:
+            result['plugin_id'] = self.printer.printerid
+
+        # Include inherited location if this asset has no location data
+        if include_inherited_location:
+            inherited = self.get_inherited_location()
+            if inherited:
+                result['inherited_location'] = inherited
+                # Also set the location fields if they're missing
+                if result.get('locationid') is None:
+                    result['locationid'] = inherited['locationid']
+                    result['location_name'] = inherited['location_name']
+                if result.get('mapleft') is None:
+                    result['mapleft'] = inherited['mapleft']
+                if result.get('maptop') is None:
+                    result['maptop'] = inherited['maptop']
+
         # Include extension data if requested
         if include_type_data:
             ext_data = self._get_extension_data()