Add stored filename visibility and auto-select functionality to admin upload results

- Added 'Stored Filename' column to Upload Results table showing the actual filename used for storage
- Added 'Select All' button for each import type section to quickly select/deselect all files
- Improved JavaScript to handle select all/deselect all functionality with proper button state management
- Enhanced UI to clearly distinguish between original and stored filenames

app/templates/admin.html

@@ -75,6 +75,7 @@
                                     <thead>
                                         <tr>
                                             <th>Original Filename</th>
+                                            <th>Stored Filename</th>
                                             <th>Import Type</th>
                                             <th>Size</th>
                                             <th>Status</th>
@@ -83,7 +84,16 @@
                                     <tbody>
                                         {% for result in upload_results %}
                                         <tr>
-                                            <td>{{ result.filename }}</td>
+                                            <td>
+                                                <strong>{{ result.filename }}</strong>
+                                                <br>
+                                                <small class="text-muted">Original name</small>
+                                            </td>
+                                            <td>
+                                                <code class="small">{{ result.stored_filename }}</code>
+                                                <br>
+                                                <small class="text-muted">Stored as</small>
+                                            </td>
                                             <td>
                                                 <span class="badge bg-primary">{{ result.import_type }}</span>
                                             </td>
@@ -148,12 +158,18 @@
                                 <div class="card-body">
                                     <form action="/admin/import/{{ import_type }}" method="post">
                                         <div class="mb-3">
-                                            <label class="form-label">Available Files:</label>
+                                            <div class="d-flex justify-content-between align-items-center mb-2">
+                                                <label class="form-label mb-0">Available Files:</label>
+                                                <button type="button" class="btn btn-outline-primary btn-sm select-all-btn"
+                                                        data-import-type="{{ import_type }}">
+                                                    <i class="bi bi-check-all me-1"></i>Select All
+                                                </button>
+                                            </div>
                                             <div class="list-group">
                                                 {% for file in files %}
                                                 <label class="list-group-item d-flex justify-content-between align-items-center">
                                                     <div>
-                                                        <input class="form-check-input me-2" type="checkbox"
+                                                        <input class="form-check-input me-2 file-checkbox" type="checkbox"
                                                                name="selected_files" value="{{ file.filename }}" id="{{ file.filename }}">
                                                         <small class="text-muted">{{ file.filename }}</small>
                                                         <br>
@@ -350,16 +366,54 @@ document.addEventListener('DOMContentLoaded', function() {
     // Start refresh cycle if there are running imports
     refreshRunningImports();
 
+    // Select All functionality
+    document.querySelectorAll('.select-all-btn').forEach(button => {
+        button.addEventListener('click', function() {
+            const importType = this.getAttribute('data-import-type');
+            const form = this.closest('form');
+            const checkboxes = form.querySelectorAll('.file-checkbox');
+            const submitBtn = form.querySelector('button[type="submit"]');
+
+            // Toggle all checkboxes in this form
+            const allChecked = Array.from(checkboxes).every(cb => cb.checked);
+            checkboxes.forEach(checkbox => {
+                checkbox.checked = !allChecked;
+            });
+
+            // Update button text
+            this.innerHTML = allChecked ?
+                '<i class="bi bi-check-all me-1"></i>Select All' :
+                '<i class="bi bi-dash-square me-1"></i>Deselect All';
+
+            // Update submit button state
+            const hasSelection = Array.from(checkboxes).some(cb => cb.checked);
+            submitBtn.disabled = !hasSelection;
+        });
+    });
+
     // File selection helpers
-    document.querySelectorAll('input[type="checkbox"]').forEach(checkbox => {
+    document.querySelectorAll('.file-checkbox').forEach(checkbox => {
         checkbox.addEventListener('change', function() {
             const form = this.closest('form');
-            const checkboxes = form.querySelectorAll('input[name="selected_files"]');
+            const checkboxes = form.querySelectorAll('.file-checkbox');
             const submitBtn = form.querySelector('button[type="submit"]');
+            const selectAllBtn = form.querySelector('.select-all-btn');
 
             // Enable/disable submit button based on selection
             const hasSelection = Array.from(checkboxes).some(cb => cb.checked);
             submitBtn.disabled = !hasSelection;
+
+            // Update select all button state
+            const allChecked = Array.from(checkboxes).every(cb => cb.checked);
+            const noneChecked = Array.from(checkboxes).every(cb => !cb.checked);
+
+            if (allChecked) {
+                selectAllBtn.innerHTML = '<i class="bi bi-dash-square me-1"></i>Deselect All';
+            } else if (noneChecked) {
+                selectAllBtn.innerHTML = '<i class="bi bi-check-all me-1"></i>Select All';
+            } else {
+                selectAllBtn.innerHTML = '<i class="bi bi-check-square me-1"></i>Select All';
+            }
         });
     });