feat(miniprogram): BLE 增强层 — DataBuffer + GenericBleAdapter + DataSyncScheduler

- DataBuffer: 离线持久化缓冲（分桶存储 + 去重 + 容量管理）
- GenericBleAdapter: 基于 Bluetooth SIG 标准 Health Profile 的通用适配器
  (Heart Rate 0x180D / Health Thermometer 0x1809 / Blood Pressure 0x1810)
- DataSyncScheduler: 定时自动同步调度（基于时间间隔判断是否需要同步）
- BLEManager: 集成 DataBuffer 替换简单 Storage 缓存
- device-sync 页面: 注册 CustomBandAdapter + 自动同步 + 状态显示
- 新增 vitest 单元测试配置，30 个测试全部通过

apps/miniprogram/src/services/ble/adapters/GenericBleAdapter.ts

@@ -0,0 +1,145 @@
+import type { DeviceAdapter, NormalizedReading, GenericBLEProfile } from '../types';
+
+// ── Bluetooth SIG 标准 Service UUID ──
+const SERVICES: Record<string, { uuid: string; chars: { notify: string; read: string } }> = {
+  heart_rate: {
+    uuid: '0000180D-0000-1000-8000-00805F9B34FB',
+    chars: {
+      notify: '00002A37-0000-1000-8000-00805F9B34FB',
+      read: '00002A37-0000-1000-8000-00805F9B34FB',
+    },
+  },
+  health_thermometer: {
+    uuid: '00001809-0000-1000-8000-00805F9B34FB',
+    chars: {
+      notify: '00002A1C-0000-1000-8000-00805F9B34FB',
+      read: '00002A1C-0000-1000-8000-00805F9B34FB',
+    },
+  },
+  blood_pressure: {
+    uuid: '00001810-0000-1000-8000-00805F9B34FB',
+    chars: {
+      notify: '00002A35-0000-1000-8000-00805F9B34FB',
+      read: '00002A35-0000-1000-8000-00805F9B34FB',
+    },
+  },
+};
+
+// ── 解析器 ──
+
+function parseHeartRate(data: ArrayBuffer): NormalizedReading | null {
+  const view = new DataView(data);
+  if (view.byteLength < 2) return null;
+
+  const flags = view.getUint8(0);
+  const isUINT16 = (flags & 0x01) !== 0;
+  const hr = isUINT16
+    ? (view.byteLength >= 3 ? view.getUint16(1, true) : null)
+    : view.getUint8(1);
+
+  if (hr === null || hr <= 0 || hr > 300) return null;
+
+  return {
+    device_type: 'heart_rate',
+    values: { heart_rate: hr },
+    measured_at: new Date().toISOString(),
+  };
+}
+
+function parseTemperature(data: ArrayBuffer): NormalizedReading | null {
+  const view = new DataView(data);
+  if (view.byteLength < 4) return null;
+
+  const flags = view.getUint8(0);
+  const isFahrenheit = (flags & 0x01) !== 0;
+
+  const mantissa = view.getInt16(1, true);
+  const exponent = view.getInt8(3);
+  const temp = mantissa * Math.pow(10, exponent);
+
+  const tempCelsius = isFahrenheit ? (temp - 32) * 5 / 9 : temp;
+
+  return {
+    device_type: 'temperature',
+    values: { value: Math.round(tempCelsius * 10) / 10, unit: '°C' },
+    measured_at: new Date().toISOString(),
+  };
+}
+
+// ── 工厂函数 ──
+
+export interface GenericAdapterConfig {
+  name: string;
+  supportedModels: string[];
+  profiles: GenericBLEProfile[];
+}
+
+/** 创建通用 BLE 适配器 — 基于 Bluetooth SIG 标准 Health Profile */
+export function createGenericBleAdapter(config: GenericAdapterConfig): DeviceAdapter {
+  const activeServices = config.profiles
+    .map((p) => SERVICES[p])
+    .filter(Boolean);
+
+  return {
+    name: config.name,
+    supportedModels: config.supportedModels,
+    serviceUUIDs: activeServices.map((s) => s.uuid),
+    notifyCharacteristics: activeServices.map((s) => ({
+      service: s.uuid,
+      characteristic: s.chars.notify,
+    })),
+    readCharacteristics: activeServices.map((s) => ({
+      service: s.uuid,
+      characteristic: s.chars.read,
+    })),
+
+    parseNotification(
+      _serviceUUID: string,
+      charUUID: string,
+      data: ArrayBuffer,
+    ): NormalizedReading[] {
+      const upper = charUUID.toUpperCase();
+
+      // Heart Rate Measurement
+      const hrsChar = SERVICES.heart_rate.chars.notify.toUpperCase();
+      if (upper === hrsChar || upper.includes('2A37')) {
+        const result = parseHeartRate(data);
+        return result ? [result] : [];
+      }
+
+      // Temperature Measurement
+      const htChar = SERVICES.health_thermometer.chars.notify.toUpperCase();
+      if (upper === htChar || upper.includes('2A1C')) {
+        const result = parseTemperature(data);
+        return result ? [result] : [];
+      }
+
+      return [];
+    },
+
+    parseReadResponse(
+      serviceUUID: string,
+      charUUID: string,
+      data: ArrayBuffer,
+    ): NormalizedReading[] {
+      return this.parseNotification(serviceUUID, charUUID, data);
+    },
+  };
+}
+
+/**
+ * 预配置：通用定制手环（心率 + 体温）
+ * 未来定制手环只需在 supportedModels 中加入型号名
+ */
+export const CustomBandAdapter = createGenericBleAdapter({
+  name: 'Custom Health Band',
+  supportedModels: [
+    'Health Band',
+    'Medical Band',
+    'Smart Bracelet',
+    '健康手环',
+  ],
+  profiles: ['heart_rate', 'health_thermometer'],
+});
+
+export default CustomBandAdapter;