copy: second-round copy review across console, settings, agent and server messages

- Trim descriptions, empty states, confirm buttons and toasts to facts
- Unify terms per glossary: 待处理/待识别/整理记录/运行记录/凭证/子会话/Agent 上游
- Subscription-login termsNote states facts only (borrowed client identity, ToS/ban risk)
- Shorter, concrete goal templates for built-in Agent checks
- Human-readable nouns instead of table names in instance CRUD errors
- Audit labels for pi_upstream / schedule / automation_grant actions
- Glossary: add 上游、订阅登录、凭证、定时任务、巡检、运行记录、子会话、停止、持续授权

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/web/app/components/console/nav.ts

@@ -174,7 +174,7 @@ export const NAV_GROUPS: NavGroup[] = [
         to: "/console/schedules",
         label: "定时任务",
         icon: Timer,
-        description: "周期任务与 Agent 巡检的开关、间隔、立即执行与历史",
+        description: "周期任务与 Agent 巡检的开关、间隔和运行记录",
       },
       {
         to: "/console/engine",