Initial import: shopdb-flask multi-site asset platform

Flask + Vue rewrite of the classic-ASP shopdb, built as a plugin
framework so sister GE Aerospace sites can adopt it. Product version
0.7.0-pre-0.8.0, plugin contract 0.11.0, 966 backend tests.

Key entry points:
- docs/INSTALL-WINDOWS-IIS.md - tested Windows + IIS install runbook
  (own-site and subpath deployment methods)
- docs/PILOT-DEPLOY.md - production pilot: stand up + import + verify
- docs/IMPORT-API.md - schema-agnostic legacy data import contract
- scripts/site_imports/wjf/ - West Jefferson reference import loader
- docs/adr/ - twelve accepted architecture decision records

plugins/printers/models/printer_driver.py

@@ -0,0 +1,33 @@
+"""Printer driver: a named link (SMB path or HTTP URL) to driver files."""
+
+from shopdb.api import db
+
+
+class PrinterDriver(db.Model):
+    __tablename__ = 'printerdrivers'
+
+    driverid = db.Column(db.Integer, primary_key=True)
+    name = db.Column(db.String(150), nullable=False)
+    # SMB path (\\\\server\\share\\...) or HTTP URL to the driver package
+    location = db.Column(db.String(500), nullable=False)
+    description = db.Column(db.Text)
+    # Optional: attach a driver to a specific printer model
+    modelnumberid = db.Column(
+        db.Integer,
+        db.ForeignKey('models.modelnumberid'),
+        nullable=True
+    )
+    isactive = db.Column(db.Boolean, default=True, nullable=False)
+
+    model = db.relationship('Model')
+
+    def to_dict(self):
+        return {
+            'driverid': self.driverid,
+            'name': self.name,
+            'location': self.location,
+            'description': self.description,
+            'modelnumberid': self.modelnumberid,
+            'modelname': self.model.modelnumber if self.model else None,
+            'isactive': bool(self.isactive),
+        }