Asset-side printer save, status CRUD, real printer types, network fix

- Printers save through the asset blueprint (PUT /printers) instead of the
  legacy machines API; restrict supply-model picker to printer models.
- Asset statuses get full CRUD (PUT/DELETE with in-use guard); canonical set.
- Printer types reseeded to a real classification set + list filter.
- Equipment accepts gauge/maintenance references.
- Fix network list emitting network_device instead of networkdevice (View 404).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

shopdb/cli/__init__.py

@@ -42,7 +42,7 @@ def seed_cli():
 def seed_reference_data():
     """Seed reference data (machine types, statuses, etc.)."""
     from shopdb.extensions import db
-    from shopdb.core.models import MachineType, MachineStatus, OperatingSystem
+    from shopdb.core.models import MachineType, MachineStatus, OperatingSystem, AssetStatus
     from shopdb.core.models.relationship import RelationshipType
 
     # Machine types
@@ -82,6 +82,24 @@ def seed_reference_data():
             s = MachineStatus(**s_data)
             db.session.add(s)
 
+    # Asset statuses (canonical set - the asset model is the contract)
+    asset_statuses = [
+        {'status': 'In Use', 'description': 'Currently in use', 'color': '#28a745'},
+        {'status': 'Inventory', 'description': 'In inventory', 'color': '#17a2b8'},
+        {'status': 'In Repair', 'description': 'Being repaired', 'color': '#ffc107'},
+        {'status': 'Retired', 'description': 'No longer in use', 'color': '#6c757d'},
+        {'status': 'Returned', 'description': 'Returned to vendor or owner', 'color': '#fd7e14'},
+        {'status': 'Warrantied', 'description': 'Under warranty service', 'color': '#20c997'},
+        {'status': 'Lost', 'description': 'Lost or missing', 'color': '#dc3545'},
+    ]
+
+    for s_data in asset_statuses:
+        existing = AssetStatus.query.filter_by(status=s_data['status']).first()
+        if not existing:
+            db.session.add(AssetStatus(isactive=True, **s_data))
+        elif existing.isactive is not True:
+            existing.isactive = True
+
     # Operating systems
     os_list = [
         {'osname': 'Windows 10', 'osversion': '10.0'},