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>

frontend/src/views/printers/PrinterDetail.vue

@@ -3,6 +3,9 @@
     <div class="page-header">
       <h2>Printer Details</h2>
       <div class="header-actions">
+        <router-link :to="`/print/printer-qr/${$route.params.id}`" class="btn btn-secondary" target="_blank">
+          Print QR
+        </router-link>
         <router-link :to="`/printers/${$route.params.id}/edit`" class="btn btn-primary">Edit</router-link>
         <router-link to="/printers" class="btn btn-secondary">Back to List</router-link>
       </div>
@@ -24,13 +27,13 @@
             <span v-if="printer.printer?.isnetwork" class="badge badge-lg badge-secondary">Network</span>
           </div>
           <div class="hero-details">
-            <div class="hero-detail" v-if="printer.printer?.vendor_name">
+            <div class="hero-detail" v-if="printer.printer?.vendorname">
               <span class="hero-detail-label">Vendor</span>
-              <span class="hero-detail-value">{{ printer.printer.vendor_name }}</span>
+              <span class="hero-detail-value">{{ printer.printer.vendorname }}</span>
             </div>
-            <div class="hero-detail" v-if="printer.printer?.model_name">
+            <div class="hero-detail" v-if="printer.printer?.modelname">
               <span class="hero-detail-label">Model</span>
-              <span class="hero-detail-value">{{ printer.printer.model_name }}</span>
+              <span class="hero-detail-value">{{ printer.printer.modelname }}</span>
             </div>
             <div class="hero-detail" v-if="printer.serialnumber">
               <span class="hero-detail-label">Serial Number</span>
@@ -133,9 +136,9 @@
                   <span v-else>Not mapped</span>
                 </span>
               </div>
-              <div class="info-row" v-if="printer.businessunit_name">
+              <div class="info-row" v-if="printer.businessunitname">
                 <span class="info-label">Business Unit</span>
-                <span class="info-value">{{ printer.businessunit_name }}</span>
+                <span class="info-value">{{ printer.businessunitname }}</span>
               </div>
             </div>
           </div>