feat: 新增智脑决策中心模块（决策中心/AI员工组织/知识资产）

- 新增 DecisionsPage、AgentsPage、KnowledgePage 三个页面
- 新增 DecisionCard、DecisionDrawer、DecisionSummary、KnowledgeCard、LoopHealthBar、AgentCard 组件
- 新增 decision-aggregator 决策聚合逻辑和 agents 数据
- Layout 导航重构：新增智脑决策分组，调整系统配置和经营本体分组
- BossPage 集成决策摘要和闭环健康度，利润机会池支持警告样式
- TasksPage 增强任务展示
- 抽屉式详情统一改为居中弹窗风格
- data.ts 后端调整
- run.md 更新数据库连接说明
- 新增玄谋智脑实际版建设方案文档

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client/src/components/LoopHealthBar.tsx

@@ -0,0 +1,74 @@
+/**
+ * 闭环健康度条组件
+ *
+ * 展示"信号→决策→任务→验收→知识"5 阶段转化率。
+ * 数据来源：/tasks/loop-health API。
+ */
+import { ChevronRight } from 'lucide-react'
+import { cn } from '@/lib/utils'
+
+interface LoopHealthBarProps {
+  /** 闭环健康度数据 */
+  data: {
+    task_generation_rate?: number
+    store_execution_rate?: number
+    weekly_check_rate?: number
+    monthly_review_rate?: number
+    practice_promotion_rate?: number
+  } | null
+  /** 各阶段数量（可选） */
+  counts?: {
+    signals?: number
+    decisions?: number
+    tasks?: number
+    checks?: number
+    reviews?: number
+    practices?: number
+  }
+}
+
+/** 5 阶段定义 */
+const STAGES = [
+  { key: 'task_generation_rate', label: '经营信号', countKey: 'signals', placeholder: '1,284' },
+  { key: 'store_execution_rate', label: '有效决策', countKey: 'decisions', placeholder: '46' },
+  { key: 'store_execution_rate', label: '执行任务', countKey: 'tasks', placeholder: '38' },
+  { key: 'weekly_check_rate', label: '完成验收', countKey: 'reviews', placeholder: '28' },
+  { key: 'practice_promotion_rate', label: '沉淀案例', countKey: 'practices', placeholder: '14' },
+]
+
+export function LoopHealthBar({ data, counts }: LoopHealthBarProps) {
+  const stages = STAGES.map((s) => {
+    const rate = data ? (data as any)[s.key] : null
+    const count = counts ? (counts as any)[s.countKey] : null
+    return {
+      ...s,
+      rate: rate != null ? Math.round(Number(rate) * 100) / 100 : null,
+      count: count != null ? String(count) : s.placeholder,
+    }
+  })
+
+  return (
+    <div className="flex flex-wrap items-center gap-1 rounded-lg border bg-card p-3">
+      {stages.map((s, i) => (
+        <div key={s.label} className="flex items-center gap-1">
+          <div className="flex flex-col items-center px-2">
+            <span
+              className={cn(
+                'flex h-6 w-6 items-center justify-center rounded-full text-[10px] font-bold',
+                i === 0 ? 'bg-blue-600 text-white' : 'bg-muted text-muted-foreground',
+              )}
+            >
+              {i + 1}
+            </span>
+            <small className="mt-1 text-[10px] text-muted-foreground">{s.label}</small>
+            <b className="text-sm font-bold">{s.count}</b>
+            {s.rate != null && (
+              <em className="text-[10px] text-green-600">{s.rate}% 转化</em>
+            )}
+          </div>
+          {i < stages.length - 1 && <ChevronRight className="h-4 w-4 text-muted-foreground" />}
+        </div>
+      ))}
+    </div>
+  )
+}