Add Project Files section and show company name for external users on project detail

src/index.css

@@ -519,6 +519,35 @@ body {
   position: relative;
 }
 
+.file-browser-progress {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: 3px;
+  z-index: 10;
+  background: transparent;
+  border-radius: 8px 8px 0 0;
+  overflow: hidden;
+}
+
+.file-browser-progress-bar {
+  height: 100%;
+  background: var(--accent);
+  transition: width 0.2s ease;
+  border-radius: 0;
+}
+
+.file-browser-progress-bar.indeterminate {
+  width: 40% !important;
+  animation: progress-slide 1.4s ease-in-out infinite;
+}
+
+@keyframes progress-slide {
+  0%   { transform: translateX(-100%); }
+  100% { transform: translateX(350%); }
+}
+
 .file-browser-dragging {
   border-color: var(--accent);
 }
@@ -973,7 +1002,6 @@ select option { background: #222; color: #fff; }
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
   gap: 18px;
-  margin-top: 18px;
 }
 .request-toolbar-actions,
 .request-filter-row {