feat(web): split plan page from tasks (FE-6)

- Nav overview group: 首页 / 任务 / 计划 / Agent 会话; tasks page drops the plan tab
- /console/tasks?tab=plan[&job=] redirects to /console/schedules[?job=]
- Plan page: 自动任务 compact grouped list (switch, interval preset/custom, last result,
  countdown, failure reason, run now/skip/run records) and Agent 巡检 cards (goal,
  allowlist, budget, upstream/model, trigger, cost per run, recent sessions); split stats
- Home plan band: two counts linking to #auto / #checks
- Docs: console-ia §7.4a, glossary, schedules runbook; smoke routes

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

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

@@ -1,6 +1,7 @@
 import {
   Bot,
   CalendarClock,
+  CalendarCog,
   Download,
   FileStack,
   FolderTree,
@@ -34,7 +35,7 @@ export function consolePath(...segments: (string | number)[]): string {
 }
 
 /**
- * 侧栏 5 组 14 项(IA-3 定稿清单;定稿文字写"共 12 项",以逐项清单为准,docs/plan/00-first-version-plan.md §8):概览 → 资源 → 订阅 → 整理 → 系统。
+ * 侧栏 5 组 15 项(IA-3 定稿清单 14 项 + FE-6 从任务页拆出的"计划",docs/plan/00-first-version-plan.md §8):概览 → 资源 → 订阅 → 整理 → 系统。
  * 待处理不进侧栏,由顶栏收件箱打开;移动端抽屉用同一份表。
  */
 export const NAV_GROUPS: NavGroup[] = [
@@ -51,7 +52,13 @@ export const NAV_GROUPS: NavGroup[] = [
         to: "/console/tasks",
         label: "任务",
         icon: ListTodo,
-        description: "每次运行都是一条任务：定时、事件、手动、Agent 触发都在这里，含定时任务计划",
+        description: "每次运行都是一条任务：定时、事件、手动、Agent 触发都在这里",
+      },
+      {
+        to: "/console/schedules",
+        label: "计划",
+        icon: CalendarCog,
+        description: "定时任务的开关、间隔和下次运行：自动任务与 Agent 巡检",
       },
       {
         to: "/console/agent",