优化: 溢出修复与视觉token收敛+三处小清理

- diff长行折行可读/任务描述与产出宽表格横滚/确认弹窗长路径折行
- 滚动条色抽token浅色主题可见/阶段徽章与优先级色对齐语义token
- git状态色与错误色替换散落硬编码
- alert残留换toast走i18n/分离窗口缺参数补错误态/dev路由生产守卫

src/components/project/ProjectCard.vue

@@ -137,7 +137,7 @@ watch(() => props.view, () => nextTick(measureDesc))
 .stage-testing { background: rgba(255,217,61,0.15); color: var(--df-warning); }
 .stage-release { background: rgba(100,255,218,0.15); color: var(--df-success); }
 /* WK-1:暂停/取消置灰(PROJECT_STATUS_BADGE_CLASS 映射) */
-.stage-dim { background: rgba(158,158,158,0.15); color: #9e9e9e; }
+.stage-dim { background: rgba(158,158,158,0.15); color: var(--df-text-dim); }
 
 .card-desc-wrap {
   position: relative;