fix(mp): 二轮审计修复 — ScrollView嵌套/InputField重建/markdown分组/BLE上限/缓存清理

CRITICAL: ai-report/list PageShell scroll=false 修复双重滚动冲突
HIGH: dialysis/create InputField 提取为独立组件避免 render 销毁重建
MEDIUM: markdownToHtml 连续<li>合并到单个<ul>
MEDIUM: 咨询详情页图片添加 lazyLoad
MEDIUM: BLEManager readings 添加 MAX_LIVE_READINGS=200 上限
MEDIUM: DataBuffer trimToMax 时重建 seenKeys 保持一致性
MEDIUM: auth.ts logout 清理模块级缓存变量
LOW: request.ts safeReLaunch 添加 console.warn + doRefresh 死锁警告注释

apps/miniprogram/src/services/ble/BLEManager.ts

@@ -16,6 +16,8 @@ const DEFAULT_CONFIG: BLEManagerConfig = {
   retryCount: 3,
 };
 
+const MAX_LIVE_READINGS = 200;
+
 export class BLEManager {
   private adapters: DeviceAdapter[] = [];
   private connection: BLEConnection | null = null;
@@ -193,7 +195,10 @@ export class BLEManager {
           res.value,
         );
         if (newReadings.length > 0) {
-          this.readings = [...this.readings, ...newReadings];
+          const combined = [...this.readings, ...newReadings];
+          this.readings = combined.length > MAX_LIVE_READINGS
+            ? combined.slice(-MAX_LIVE_READINGS)
+            : combined;
           this.dataBuffer.push(newReadings);
           this.onReadings?.(newReadings);
         }