fix: 添加缺失的项目资源文件

- 添加HarmonyOS字体文件
- 添加Dashboard相关背景图片
- 添加PersonalProfile页面图片资源
- 添加Rank排行榜图标
- 添加Login页面样式文件
- 添加CoursesVideoPlayer背景图片

这些文件被项目CSS引用，缺失会导致样式显示异常

src/pages/Login/index.css

@@ -0,0 +1,110 @@
+.login-page-wrapper {
+  width: 100vw;
+  height: 100vh;
+  position: relative;
+  background-image: url("@/assets/images/Login/login_bg.png");
+  background-size: 100% 100%;
+  position: relative;
+
+  .login-icon {
+    width: 285px;
+    height: 96px;
+    position: absolute;
+    top: 127px;
+    left: 166px;
+  }
+
+  .login-content {
+    width: 540px;
+    height: 626px;
+    position: absolute;
+    top: 137px;
+    left: 820px;
+    background-color: #fff;
+    border-radius: 30px;
+    box-sizing: border-box;
+    padding: 30px 20px;
+    display: flex;
+    flex-direction: column;
+    justify-content: flex-start;
+    align-items: center;
+
+    .login-title {
+      width: 100%;
+      text-align: center;
+      height: 49px;
+      line-height: 49px;
+      font-size: 36px;
+      font-weight: 700;
+      color: #1d2129;
+      margin-bottom: 20px;
+      > span {
+        color: #0077ff;
+      }
+    }
+    .login-tips {
+      width: 100%;
+      height: 28px;
+      line-height: 28px;
+      color: #86909c;
+      text-align: center;
+      font-size: 20px;
+      font-weight: 400;
+      margin-bottom: 20px;
+    }
+
+    .qr-code-wrapper {
+      width: 340px;
+      height: 340px;
+      border-radius: 24px;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      background-color: #f9fbfe;
+      border: 1px solid #e4e8eb;
+      margin-bottom: 20px;
+      position: relative;
+      transition: all 0.3s ease;
+    }
+
+    .login-user-read {
+      width: 100%;
+      height: 25px;
+      text-align: center;
+      line-height: 25px;
+      font-size: 18px;
+      font-weight: 400;
+      color: #959da9;
+
+      > span {
+        color: #1d2129;
+        cursor: pointer;
+        text-decoration: underline;
+      }
+    }
+
+    /* 超时遮罩层 */
+    .qr-expired-overlay {
+      position: absolute;
+      top: 0;
+      left: 0;
+      right: 0;
+      bottom: 0;
+      background-color: rgba(255, 255, 255, 0.9);
+      border-radius: 24px;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      backdrop-filter: blur(4px);
+      z-index: 20;
+
+      .expired-content {
+        text-align: center;
+        padding: 20px;
+        font-size: 24px;
+        font-weight: 500;
+        color: #000000;
+      }
+    }
+  }
+}