fix(界面): 能点的文字平时就是绿色，不用再把鼠标移上去才看得出能点

首页「全部」、提交详情的用户名和题名、题目页「点开看全部」「有 N 道差一点」、
班级对抗的班级名、知识点、后台标题等 30 多处原来和正文同色，鼠标移上去才变色，
手机上根本没有「移上去」。现在一律主题绿，移上去加下划线；没设颜色的文字按钮补上
type="primary"。排名名字列、整行可点的列表、后台 quaternary 次要按钮不动。

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/web/src/oj/submission/components/ExplainNote.vue

@@ -65,10 +65,14 @@ watch(
   display: inline-flex;
   align-items: center;
   gap: 3px;
-  color: v-bind("theme.textColor3");
+  color: v-bind("theme.primaryColor");
   text-decoration: none;
 }
 
+.raw-toggle:hover {
+  text-decoration: underline;
+}
+
 .raw {
   margin: 0;
   max-height: 140px;

apps/web/src/oj/submission/components/FlowchartPane.vue

@@ -446,6 +446,14 @@ const canRetry = computed(
   text-decoration: none;
 }
 
+.user-link :deep(.name) {
+  color: v-bind("theme.primaryColor");
+}
+
+.user-link:hover :deep(.name) {
+  text-decoration: underline;
+}
+
 .render-error {
   display: flex;
   flex-direction: column;
@@ -477,12 +485,16 @@ const canRetry = computed(
 }
 
 .problem {
-  color: v-bind("theme.textColor1");
+  color: v-bind("theme.primaryColor");
   text-decoration: none;
   overflow: hidden;
   text-overflow: ellipsis;
 }
 
+.problem:hover {
+  text-decoration: underline;
+}
+
 /* 只留漏斗图标（右栏六百来宽，带字的话名字、题目和按钮排不进一行），字在 title 里 */
 .filter-pill {
   flex: none;

apps/web/src/oj/submission/components/SubmissionPane.vue

@@ -460,10 +460,14 @@ function openStandalone() {
   text-decoration: none;
 }
 
-.user-link:hover :deep(.name) {
+.user-link :deep(.name) {
   color: v-bind("theme.primaryColor");
 }
 
+.user-link:hover :deep(.name) {
+  text-decoration: underline;
+}
+
 .who {
   display: flex;
   align-items: center;
@@ -476,7 +480,7 @@ function openStandalone() {
 }
 
 .problem {
-  color: v-bind("theme.textColor1");
+  color: v-bind("theme.primaryColor");
   text-decoration: none;
   overflow: hidden;
   text-overflow: ellipsis;
@@ -484,7 +488,7 @@ function openStandalone() {
 }
 
 .problem:hover {
-  color: v-bind("theme.primaryColor");
+  text-decoration: underline;
 }
 
 .problem-id {

apps/web/src/oj/submission/components/SubmissionView.vue

@@ -431,10 +431,14 @@ function handleMore(key: string) {
   text-decoration: none;
 }
 
-.user-link:hover :deep(.name) {
+.user-link :deep(.name) {
   color: v-bind("theme.primaryColor");
 }
 
+.user-link:hover :deep(.name) {
+  text-decoration: underline;
+}
+
 .cls {
   height: 22px;
   padding: 0 8px;
@@ -455,12 +459,12 @@ function handleMore(key: string) {
   overflow: hidden;
   text-overflow: ellipsis;
   font-weight: 600;
-  color: v-bind("theme.textColor1");
+  color: v-bind("theme.primaryColor");
   text-decoration: none;
 }
 
 .problem:hover {
-  color: v-bind("theme.primaryColor");
+  text-decoration: underline;
 }
 
 .problem-id {