Change data source label to 萌奇熊日报

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

build_data.py

@@ -117,7 +117,7 @@ lbl = f"{start.month}/{start.day}-{end.month}/{end.day}"
 data = {
     "meta": {
         "week": f"Last {WINDOW_DAYS} Days: {lbl}",
-        "source": "数据已处理（平台消耗统计 × 投手表匹配，已剔除未填写投放人的 Adpingid 及排除包名）",
+        "source": "萌奇熊日报",
         "generated_at": datetime.date.today().isoformat(),
         "date_range": f"{start:%Y/%m/%d}-{end:%Y/%m/%d}",
         "note": "投放人以「投手」表 Media Buyer 列为准，@某某 已与某某合并计算；"