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/components/ToastContainer.module.css

@@ -0,0 +1,50 @@
+.container {
+  position: fixed;
+  bottom: 24px;
+  right: 24px;
+  z-index: 10000;
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  pointer-events: none;
+  max-width: min(360px, calc(100vw - 32px));
+}
+
+.toast {
+  pointer-events: auto;
+  padding: 12px 16px;
+  border-radius: 8px;
+  font-size: 14px;
+  line-height: 1.4;
+  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
+  animation: slideIn 0.2s ease-out;
+}
+
+.success {
+  background: #ecfdf5;
+  color: #065f46;
+  border: 1px solid #a7f3d0;
+}
+
+.error {
+  background: #fef2f2;
+  color: #991b1b;
+  border: 1px solid #fecaca;
+}
+
+.warning {
+  background: #fffbeb;
+  color: #92400e;
+  border: 1px solid #fde68a;
+}
+
+@keyframes slideIn {
+  from {
+    opacity: 0;
+    transform: translateY(8px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}