chore(bug/qa): 归档测试清单、bug 报告与 QA 诊断脚本

- core/bug: 各轮电商项目测试清单 xlsx + 验证报告/套图提示词梳理 md
- core/qa: consumption_summary / diag_login / diag_sessions / probe_usage 诊断脚本

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

core/qa/probe_usage.py

@@ -0,0 +1,16 @@
+import os, sys, json
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "backend"))
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "airshelf.settings.development")
+import django; django.setup()
+from apps.ai.models import AITask
+
+for tt in ["product_image", "script_generation", "video_segment", "storyboard", "voiceover"]:
+    t = AITask.objects.filter(task_type=tt, status="succeeded").exclude(response_payload={}).first()
+    print("=" * 50, tt)
+    if not t:
+        print("  (无样本)"); continue
+    rp = t.response_payload if isinstance(t.response_payload, dict) else {}
+    usage = rp.get("usage")
+    print("  usage =", json.dumps(usage, ensure_ascii=False))
+    # 顶层除大字段外的 keys
+    print("  payload keys =", [k for k in rp.keys()])