feat: KKS P240/P241 蓝牙工牌管理系统初始提交

FastAPI + SQLAlchemy + asyncio TCP 服务器，支持设备管理、实时定位、
告警、考勤打卡、蓝牙记录、指令下发、TTS语音播报等功能。

app/routers/heartbeats.py

@@ -0,0 +1,92 @@
+"""
+Heartbeats Router - 心跳数据接口
+API endpoints for querying device heartbeat records.
+"""
+
+import math
+from datetime import datetime
+
+from fastapi import APIRouter, Depends, HTTPException, Query
+from sqlalchemy import func, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.database import get_db
+from app.models import HeartbeatRecord
+from app.schemas import (
+    APIResponse,
+    HeartbeatRecordResponse,
+    PaginatedList,
+)
+from app.services import device_service
+
+router = APIRouter(prefix="/api/heartbeats", tags=["Heartbeats / 心跳数据"])
+
+
+@router.get(
+    "",
+    response_model=APIResponse[PaginatedList[HeartbeatRecordResponse]],
+    summary="获取心跳记录列表 / List heartbeat records",
+)
+async def list_heartbeats(
+    device_id: int | None = Query(default=None, description="设备ID / Device ID"),
+    start_time: datetime | None = Query(default=None, description="开始时间 / Start time (ISO 8601)"),
+    end_time: datetime | None = Query(default=None, description="结束时间 / End time (ISO 8601)"),
+    page: int = Query(default=1, ge=1, description="页码 / Page number"),
+    page_size: int = Query(default=20, ge=1, le=100, description="每页数量 / Items per page"),
+    db: AsyncSession = Depends(get_db),
+):
+    """
+    获取心跳记录列表，支持按设备和时间范围过滤。
+    List heartbeat records with optional device and time range filters.
+    """
+    query = select(HeartbeatRecord)
+    count_query = select(func.count(HeartbeatRecord.id))
+
+    if device_id is not None:
+        query = query.where(HeartbeatRecord.device_id == device_id)
+        count_query = count_query.where(HeartbeatRecord.device_id == device_id)
+
+    if start_time:
+        query = query.where(HeartbeatRecord.created_at >= start_time)
+        count_query = count_query.where(HeartbeatRecord.created_at >= start_time)
+
+    if end_time:
+        query = query.where(HeartbeatRecord.created_at <= end_time)
+        count_query = count_query.where(HeartbeatRecord.created_at <= end_time)
+
+    total_result = await db.execute(count_query)
+    total = total_result.scalar() or 0
+
+    offset = (page - 1) * page_size
+    query = query.order_by(HeartbeatRecord.created_at.desc()).offset(offset).limit(page_size)
+    result = await db.execute(query)
+    records = list(result.scalars().all())
+
+    return APIResponse(
+        data=PaginatedList(
+            items=[HeartbeatRecordResponse.model_validate(r) for r in records],
+            total=total,
+            page=page,
+            page_size=page_size,
+            total_pages=math.ceil(total / page_size) if total else 0,
+        )
+    )
+
+
+@router.get(
+    "/{heartbeat_id}",
+    response_model=APIResponse[HeartbeatRecordResponse],
+    summary="获取心跳详情 / Get heartbeat details",
+)
+async def get_heartbeat(heartbeat_id: int, db: AsyncSession = Depends(get_db)):
+    """
+    按ID获取心跳记录详情。
+    Get heartbeat record details by ID.
+    """
+    result = await db.execute(
+        select(HeartbeatRecord).where(HeartbeatRecord.id == heartbeat_id)
+    )
+    record = result.scalar_one_or_none()
+    if record is None:
+        raise HTTPException(status_code=404, detail=f"Heartbeat {heartbeat_id} not found")
+    return APIResponse(data=HeartbeatRecordResponse.model_validate(record))