Add custom fields + warranty plugin, rework settings into two-pane shell

Feature work from the 2026-07 session:

Settings IA
- Replace the flat 27-card settings hub with a persistent two-pane shell
  (SettingsLayout.vue): grouped, searchable left rail + content pane.
- Nest all settings/* routes under the shell via router post-processing;
  shared nav catalog in settingsNav.js. Group by asset class (PCs, Printers,
  Equipment, Network) so per-type settings stop scattering.

Custom fields (core)
- customfields + customfieldvalues tables (migration 7d14), CRUD API at
  /api/customfields, per-asset value get/save.
- Settings management page + reusable CustomFieldsSection (detail) and
  CustomFieldsInputs (form) wired into all four asset types.

Warranty (new plugin)
- plugins/warranty: warranties + warrantyassets (migration 7d15), derived
  coverage status, provider abstraction (manual now; Dell/Lenovo/HP stubs).
- API CRUD + per-asset panel + report buckets; WarrantyPanel on all four
  detail pages; Warranties management page; Warranty report + Reports card.
- Seed warranty.* permissions.

Printer drivers
- printerdrivers table (migration 7d13) linked to printer models; drivers now
  surface on the matching printer's detail page.

Other
- PCDetail rebalanced (Network + Status + Warranty + custom fields on the right).
- Rename PCs list "Features" column to "Remote Access"; fix badge hover underline.
- Drop equipment islocationonly field.
- Centralize asset-type label/route maps into utils/assetTypes.js.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

shopdb/core/models/__init__.py

@@ -15,6 +15,7 @@ from .user import User, Role, Permission
 from .application import Application, AppVersion, AppOwner, SupportTeam
 from .setting import Setting
 from .auditlog import AuditLog
+from .customfield import CustomField, CustomFieldValue
 
 __all__ = [
     # Base
@@ -55,4 +56,7 @@ __all__ = [
     'Setting',
     # Audit
     'AuditLog',
+    # Custom fields
+    'CustomField',
+    'CustomFieldValue',
 ]

shopdb/core/models/asset.py

@@ -32,6 +32,7 @@ class AssetType(BaseModel):
     )
     description = db.Column(db.Text)
     icon = db.Column(db.String(50), comment='Icon name for UI')
+    color = db.Column(db.String(20), comment='CSS color for UI/map markers')
 
     def __repr__(self):
         return f"<AssetType {self.assettype}>"
@@ -215,8 +216,10 @@ class Asset(BaseModel, SoftDeleteMixin, AuditMixin):
         # Add related object names for convenience
         if self.assettype:
             result['assettypename'] = self.assettype.assettype
+            result['assettypecolor'] = getattr(self.assettype, 'color', None)
         if self.status:
             result['statusname'] = self.status.status
+            result['statuscolor'] = self.status.color
         if self.location:
             result['locationname'] = self.location.locationname
         if self.businessunit:

shopdb/core/models/customfield.py

@@ -0,0 +1,91 @@
+"""Custom fields: site-defined extra attributes per asset type.
+
+A CustomField is a definition scoped to one asset type (equipment, computer,
+printer, network_device). A CustomFieldValue holds one asset's value for one
+field. This is the generic form of the built-in identifier columns - sites add
+their own attributes without a schema change.
+"""
+
+from shopdb.extensions import db
+
+# Allowed datatypes for a custom field. Values are always stored as text and
+# cast on render/input by the frontend.
+CUSTOM_FIELD_DATATYPES = ('text', 'number', 'date', 'boolean', 'select')
+
+
+class CustomField(db.Model):
+    __tablename__ = 'customfields'
+
+    fieldid = db.Column(db.Integer, primary_key=True)
+    assettypeid = db.Column(
+        db.Integer,
+        db.ForeignKey('assettypes.assettypeid'),
+        nullable=False,
+        comment='Which asset category this field applies to'
+    )
+    # Machine-name key, unique per asset type. Used for stable references.
+    fieldkey = db.Column(db.String(50), nullable=False)
+    label = db.Column(db.String(150), nullable=False)
+    datatype = db.Column(db.String(20), nullable=False, server_default='text')
+    # JSON array of options, only meaningful when datatype='select'
+    options = db.Column(db.Text)
+    showondetail = db.Column(db.Boolean, nullable=False, server_default='1')
+    showonform = db.Column(db.Boolean, nullable=False, server_default='1')
+    sortorder = db.Column(db.Integer, nullable=False, server_default='0')
+    isactive = db.Column(db.Boolean, nullable=False, server_default='1')
+
+    __table_args__ = (
+        db.UniqueConstraint('assettypeid', 'fieldkey', name='uq_customfield_type_key'),
+    )
+
+    def to_dict(self):
+        import json
+        parsed_options = []
+        if self.options:
+            try:
+                parsed_options = json.loads(self.options)
+            except (ValueError, TypeError):
+                parsed_options = []
+        return {
+            'fieldid': self.fieldid,
+            'assettypeid': self.assettypeid,
+            'fieldkey': self.fieldkey,
+            'label': self.label,
+            'datatype': self.datatype,
+            'options': parsed_options,
+            'showondetail': bool(self.showondetail),
+            'showonform': bool(self.showonform),
+            'sortorder': self.sortorder,
+            'isactive': bool(self.isactive),
+        }
+
+
+class CustomFieldValue(db.Model):
+    __tablename__ = 'customfieldvalues'
+
+    valueid = db.Column(db.Integer, primary_key=True)
+    fieldid = db.Column(
+        db.Integer,
+        db.ForeignKey('customfields.fieldid', ondelete='CASCADE'),
+        nullable=False
+    )
+    assetid = db.Column(
+        db.Integer,
+        db.ForeignKey('assets.assetid', ondelete='CASCADE'),
+        nullable=False
+    )
+    value = db.Column(db.Text)
+
+    field = db.relationship('CustomField')
+
+    __table_args__ = (
+        db.UniqueConstraint('fieldid', 'assetid', name='uq_customfieldvalue_field_asset'),
+    )
+
+    def to_dict(self):
+        return {
+            'valueid': self.valueid,
+            'fieldid': self.fieldid,
+            'assetid': self.assetid,
+            'value': self.value,
+        }

shopdb/core/models/location.py

@@ -15,6 +15,7 @@ class LocationType(BaseModel):
     locationtypeid = db.Column(db.Integer, primary_key=True)
     locationtype = db.Column(db.String(50), unique=True, nullable=False)
     description = db.Column(db.Text)
+    color = db.Column(db.String(20), comment='CSS color for UI')
 
     def __repr__(self):
         return f"<LocationType {self.locationtype}>"

shopdb/core/models/relationship.py

@@ -19,6 +19,7 @@ class RelationshipType(BaseModel):
     relationshiptypeid = db.Column(db.Integer, primary_key=True)
     relationshiptype = db.Column(db.String(50), unique=True, nullable=False)
     description = db.Column(db.Text)
+    color = db.Column(db.String(20), comment='CSS color for relationship badges')
 
     # Sibling propagation (ADR-001): when a relationship of this type is
     # created/deleted, the framework finds all assets related to the source

shopdb/core/models/user.py

@@ -75,6 +75,16 @@ class Permission(db.Model):
         ('notifications.create', 'Create notifications', 'notifications'),
         ('notifications.edit', 'Edit notifications', 'notifications'),
         ('notifications.delete', 'Delete notifications', 'notifications'),
+        # USB devices
+        ('usb.view', 'View USB devices', 'usb'),
+        ('usb.create', 'Create USB devices', 'usb'),
+        ('usb.edit', 'Edit USB devices', 'usb'),
+        ('usb.delete', 'Delete USB devices', 'usb'),
+        # Warranty
+        ('warranty.view', 'View warranties', 'warranty'),
+        ('warranty.create', 'Create warranties', 'warranty'),
+        ('warranty.edit', 'Edit warranties', 'warranty'),
+        ('warranty.delete', 'Delete warranties', 'warranty'),
         # Reports
         ('reports.view', 'View reports', 'reports'),
         ('reports.export', 'Export reports', 'reports'),