refactor: Add Alpine.js registration to existing TypeScript modules

Added Alpine.global() registration to enable template access to functions:

- admin.ts: Added Alpine for scan, stats, and settings functions
- api-explorer.ts: Already had Alpine (kept as is)
- bookshelf.ts: Added Alpine for library/bookshelf interactions
- collections.ts: Added Alpine for collection management
- conflicts.ts: Added Alpine for conflict resolution
- device-management.ts: Added Alpine with event delegation for dynamic content
- header.ts: Added Alpine for theme dropdown and user menu
- library.ts: Added Alpine registrations
- linking.ts: Added Alpine registrations
- queue.ts: Added Alpine for queue operations
- search.ts: Added Alpine registrations
- themeDropdown.ts: Added Alpine for theme switching

Each module now exports functions both traditionally and via Alpine.global() for template access.

web/src/admin.ts

@@ -1,3 +1,4 @@
+import { Alpine } from "./alpine";
 import { showToast } from "./toast";
 
 async function triggerLibraryScan(): Promise<void> {
@@ -384,10 +385,23 @@ function stopScanStatusPolling(): void {
     scanPollInterval = undefined;
   }
 }
-(window as any).triggerLibraryScan = triggerLibraryScan;
-(window as any).triggerQuickScan = triggerQuickScan;
-(window as any).loadSystemStats = loadSystemStats;
-(window as any).scanAllLibraries = scanAllLibraries;
-(window as any).loadWatchStatus = loadWatchStatus;
-(window as any).hideScanProgress = hideScanProgress;
-(window as any).stopScanStatusPolling = stopScanStatusPolling;
+
+export {
+  hideScanProgress,
+  loadSystemStats,
+  loadWatchStatus,
+  scanAllLibraries,
+  stopScanStatusPolling,
+  triggerLibraryScan,
+  triggerQuickScan,
+};
+
+Alpine.global("admin", {
+  hideScanProgress,
+  loadSystemStats,
+  loadWatchStatus,
+  scanAllLibraries,
+  stopScanStatusPolling,
+  triggerLibraryScan,
+  triggerQuickScan,
+});