chore: biz_org 合并 / BizProject 重构 / 各角色页面调整 (上次重构遗留)

涵盖改动范围:
- 后端 BizOrg / BizProject / BizProjectRating / BizSpecialPlan controller + domain + mapper + service
- 前端 admin (BizSpecialPlanAdmin, ProjectCategory) / executor / leader / manager / sponsor 多页调整
- api/dict.js + AdminLayout.vue 同步

ry-vue3/src/views/sponsor/Home.vue

@@ -15,7 +15,7 @@
         <div class="stat-value">{{ stats.totalProjects }}</div>
         <div class="stat-desc">查看全部项目</div>
       </router-link>
-      <router-link class="stat-card" to="/sponsor/meetings?isSettled=1">
+      <router-link class="stat-card" to="/sponsor/meetings?isSettled=Y">
         <div class="stat-label">已结算的会议</div>
         <div class="stat-value">{{ stats.settledMeetings }}</div>
         <div class="stat-desc">查看已结算会议</div>