feat: enhance project data handling with new Jinja filters and update UI labels for clarity

templates/projects/detail.html

@@ -235,7 +235,7 @@
                             <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                 <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-8l-4-4m0 0L8 8m4-4v12"></path>
                             </svg>
-                            Upload All
+                            Upload Days
                         </button>
                         <button onclick="htmx.trigger('#unified-files', 'refresh')"
                                 class="px-3 py-2 text-sm bg-gray-100 dark:bg-gray-700 text-gray-700 dark:text-gray-300 rounded-lg hover:bg-gray-200 dark:hover:bg-gray-600 transition-colors">
@@ -248,7 +248,7 @@
                 </div>
             </div>
 
-            <!-- Upload All Panel -->
+            <!-- Upload Days Panel -->
             <div id="upload-all-panel" class="hidden border-b border-gray-200 dark:border-gray-700">
                 <div class="px-6 py-4 bg-gray-50 dark:bg-gray-800/50">
                     <p class="text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Bulk Import — Select Folder</p>
@@ -1575,7 +1575,7 @@ document.getElementById('schedule-modal')?.addEventListener('click', function(e)
     }
 });
 
-// ── Upload All ───────────────────────────────────────────────────────────────
+// ── Upload Days ───────────────────────────────────────────────────────────────
 
 function toggleUploadAll() {
     const panel = document.getElementById('upload-all-panel');