feat: uv config other feats

- add uv configuration for the backend
- update frontend to make auth work
- add new auth endpoints
- add bookmars feat
- add reader feat

frontend/src/pages/Library.module.css

@@ -10,4 +10,20 @@
 .bookCard:hover {
   transform: translateY(-2px);
   box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
+}
+
+.coverProgressBar {
+  position: absolute;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  height: 4px;
+  background: rgba(0, 0, 0, 0.12);
+  z-index: 2;
+}
+
+.coverProgressFill {
+  height: 100%;
+  background: #16a34a;
+  transition: width 0.2s ease;
 }