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>

CLAUDE.md

@@ -0,0 +1,108 @@
+# ShopDB Flask Project
+
+## Database Configuration
+
+- **Development database:** `shopdb_flask` (new schema with asset abstraction)
+- **Legacy database:** `shopdb` (Classic ASP schema - used for data migration reference only)
+- **Connection:** Configured in `.env` file
+
+## Current Tasks
+
+### Data Migration from Legacy Database
+
+Migrate data from `shopdb` to `shopdb_flask` using the new asset-based schema.
+
+**Status:** Pending
+
+**Migration guide:** `migrations/DATA_MIGRATION_GUIDE.md`
+
+**Tables to migrate:**
+- [ ] Reference data (vendors, models, locations, business units, subnets)
+- [ ] Equipment (machines with category='Equipment')
+- [ ] Computers/PCs (machines with pctypeid IS NOT NULL)
+- [ ] Network devices (machines with category='Network')
+- [ ] Printers (separate printers table)
+- [ ] Communications/IP addresses
+- [ ] Notifications
+- [ ] Machine relationships
+
+### Plugin Architecture Verification
+
+Verify all plugins follow plug-and-play architecture - can be added/removed without impacting core site or other plugins.
+
+**Plugins to verify:**
+- [ ] Equipment (`plugins/equipment/`) - frontend: `views/machines/`
+- [ ] Computers (`plugins/computers/`) - frontend: `views/pcs/`
+- [ ] Printers (`plugins/printers/`) - frontend: `views/printers/`
+- [ ] Network (`plugins/network/`) - frontend: `views/network/`
+- [ ] USB (`plugins/usb/`) - frontend: `views/usb/`
+- [ ] Notifications (`plugins/notifications/`) - frontend: `views/notifications/`
+
+**Architecture checks:**
+- [ ] Core API uses try/except ImportError for plugin imports (see `shopdb/core/api/assets.py` for pattern)
+- [ ] Frontend router can dynamically add/remove routes per plugin
+- [ ] Navigation menu reads from plugin `get_navigation_items()`
+- [ ] Document plugin enable/disable mechanism in app factory
+
+**Each plugin must have:**
+- `models/__init__.py` - exports all models
+- `api/routes.py` - Flask Blueprint with endpoints
+- `plugin.py` - implements BasePlugin class
+- `manifest.json` - plugin metadata (name, version, dependencies)
+- No direct imports from core code (use optional imports)
+- Modular frontend components
+
+## Plugin Structure
+
+```
+plugins/
+  {plugin_name}/
+    __init__.py
+    plugin.py          # BasePlugin implementation
+    manifest.json      # Plugin metadata
+    models/
+      __init__.py      # Export all models
+      {model}.py       # SQLAlchemy models
+    api/
+      __init__.py
+      routes.py        # Flask Blueprint
+```
+
+## Key Files
+
+- `shopdb/plugins/base.py` - BasePlugin class and PluginMeta
+- `shopdb/core/api/assets.py` - Example of optional plugin imports with try/except
+- `frontend/src/router/index.js` - Frontend routing
+- `frontend/src/components/AppSidebar.vue` - Navigation menu
+
+## Migration Notes
+
+See `migrations/` folder for:
+- `DATA_MIGRATION_GUIDE.md` - Complete guide for migrating from legacy shopdb to new schema
+- `MIGRATE_USB_DEVICES_FROM_EQUIPMENT.md` - USB device migration from equipment table
+- `FIX_LOCATIONONLY_EQUIPMENT_TYPES.md` - Fix for LocationOnly equipment types
+- `PRODUCTION_MIGRATION_GUIDE.md` - Production data import methods
+
+## Quick Start
+
+```bash
+# Start dev environment
+~/start-dev-env.sh
+
+# Create/update database tables
+cd /home/camp/projects/shopdb-flask
+source venv/bin/activate
+flask db-utils create-all
+
+# Seed reference data
+flask seed reference-data
+
+# Restart services after changes
+pm2 restart shopdb-flask-api shopdb-flask-ui
+```
+
+## Service URLs
+
+- **Flask API:** http://localhost:5001
+- **Flask UI:** http://localhost:5173
+- **Legacy ASP:** http://192.168.122.151:8080