fix: 数据分析模块修复 添加 API 端点 + 租户维度

1. 新增 GET /api/analytics 端点（之前不存在，前端一直请求 404）
2. query_optimizer.get_analytics_optimized 支持 tenant_id 参数
3. 工单/预警/对话查询按 tenant_id 过滤
4. 数据分析控制面板新增租户筛选下拉框
5. updateCharts 传递 tenant_id 参数
6. populateTenantSelectors 填充分析页租户筛选器

src/web/blueprints/analytics.py

@@ -4,49 +4,63 @@
 处理数据分析、报告生成等功能
 """
 
-from flask import Blueprint, request, jsonify, send_file
 import os
+import logging
+from flask import Blueprint, request, jsonify, send_file
+from src.core.query_optimizer import query_optimizer
+
+logger = logging.getLogger(__name__)
 
 analytics_bp = Blueprint('analytics', __name__, url_prefix='/api/analytics')
 
 
+@analytics_bp.route('')
+def get_analytics():
+    """获取分析数据（支持租户筛选和时间范围）"""
+    try:
+        time_range = request.args.get('timeRange', '30')
+        tenant_id = request.args.get('tenant_id')
+
+        try:
+            days = int(time_range)
+        except (ValueError, TypeError):
+            days = 30
+
+        analytics = query_optimizer.get_analytics_optimized(days, tenant_id=tenant_id)
+        return jsonify(analytics)
+    except Exception as e:
+        logger.error(f"获取分析数据失败: {e}")
+        return jsonify({"error": str(e)}), 500
+
+
 @analytics_bp.route('/export')
 def export_analytics():
     """导出分析报告"""
     try:
-        from src.web.service_manager import service_manager
-        from src.core.query_optimizer import query_optimizer
         from openpyxl import Workbook
         from openpyxl.styles import Font
 
-        # 生成Excel报告（使用数据库真实数据）
         analytics = query_optimizer.get_analytics_optimized(30)
 
-        # 创建工作簿
         wb = Workbook()
         ws = wb.active
         ws.title = "分析报告"
-
-        # 添加标题
         ws['A1'] = 'TSP智能助手分析报告'
         ws['A1'].font = Font(size=16, bold=True)
-
-        # 添加工单统计
         ws['A3'] = '工单统计'
         ws['A3'].font = Font(bold=True)
         ws['A4'] = '总工单数'
-        ws['B4'] = analytics['workorders']['total']
+        ws['B4'] = analytics.get('workorders', {}).get('total', 0)
         ws['A5'] = '待处理'
-        ws['B5'] = analytics['workorders']['open']
+        ws['B5'] = analytics.get('workorders', {}).get('open', 0)
         ws['A6'] = '已解决'
-        ws['B6'] = analytics['workorders']['resolved']
+        ws['B6'] = analytics.get('workorders', {}).get('resolved', 0)
 
-        # 保存文件
         report_path = 'uploads/analytics_report.xlsx'
         os.makedirs('uploads', exist_ok=True)
         wb.save(report_path)
 
         return send_file(report_path, as_attachment=True, download_name='analytics_report.xlsx')
-
     except Exception as e:
+        logger.error(f"导出分析报告失败: {e}")
         return jsonify({"error": str(e)}), 500