Archive improvements: list view actions, object count, cross-view highlighting

Added:
  - Archive list view: edit/delete buttons and context menu with full feature parity
  - Archive object count display on cards (extracted from 3MF metadata)
  - Cross-view archive highlighting: click in calendar/project to highlight in card view
  - Context menu button (⋮) on cards and list rows for easy access
  - Spoolman: clear location when spools are removed from AMS

  Fixed:
  - QR code endpoint 500 error (added qrcode[pil] dependency)

static/index.html

@@ -23,8 +23,8 @@
 
     <!-- Splash screens for iOS -->
     <link rel="apple-touch-startup-image" href="/img/android-chrome-512x512.png" />
-    <script type="module" crossorigin src="/assets/index-BstVVW2U.js"></script>
-    <link rel="stylesheet" crossorigin href="/assets/index-DIdbNfsf.css">
+    <script type="module" crossorigin src="/assets/index-OrUoRy29.js"></script>
+    <link rel="stylesheet" crossorigin href="/assets/index-BEtulymk.css">
   </head>
   <body>
     <div id="root"></div>