Add print badges, pagination, route splitting, JWT auth fixes, and list page alignment

- Fix equipment badge barcode not rendering (loading race condition)
- Fix printer QR code not rendering on initial load (same race condition)
- Add model image to equipment badge via imageurl from Model table
- Fix white-on-white machine number text on badge, tighten barcode spacing
- Add PaginationBar component used across all list pages
- Split monolithic router into per-plugin route modules
- Fix 25 GET API endpoints returning 401 (jwt_required -> optional=True)
- Align list page columns across Equipment, PCs, and Network pages
- Add print views: EquipmentBadge, PrinterQRSingle, PrinterQRBatch, USBLabelBatch
- Add PC Relationships report, migration docs, and CLAUDE.md project guide
- Various plugin model, API, and frontend refinements

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

plugins/usb/models/usb_device.py

@@ -123,16 +123,16 @@ class USBCheckout(BaseModel):
 
     # User info
     sso = db.Column(db.String(20), nullable=False, comment='SSO of user')
-    checkout_name = db.Column(db.String(100), nullable=True, comment='Name of user')
+    checkoutname = db.Column(db.String(100), nullable=True, comment='Name of user')
 
     # Checkout details
-    checkout_time = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
-    checkin_time = db.Column(db.DateTime, nullable=True)
+    checkouttime = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
+    checkintime = db.Column(db.DateTime, nullable=True)
 
     # Metadata
-    checkout_reason = db.Column(db.Text, nullable=True, comment='Reason for checkout')
-    checkin_notes = db.Column(db.Text, nullable=True)
-    was_wiped = db.Column(db.Boolean, nullable=True, comment='Was device wiped after return')
+    checkoutreason = db.Column(db.Text, nullable=True, comment='Reason for checkout')
+    checkinnotes = db.Column(db.Text, nullable=True)
+    waswiped = db.Column(db.Boolean, nullable=True, comment='Was device wiped after return')
 
     # Relationships
     device = db.relationship('USBDevice', backref=db.backref('checkouts', lazy='dynamic'))
@@ -143,13 +143,13 @@ class USBCheckout(BaseModel):
     @property
     def is_active(self):
         """Check if this checkout is currently active (not returned)."""
-        return self.checkin_time is None
+        return self.checkintime is None
 
     @property
     def duration_days(self):
         """Get duration of checkout in days."""
-        end = self.checkin_time or datetime.utcnow()
-        delta = end - self.checkout_time
+        end = self.checkintime or datetime.utcnow()
+        delta = end - self.checkouttime
         return delta.days
 
     def to_dict(self):