feat(control-plane): harden host-scoped reconcile and acceptance evidence

- add batch-scoped reconcile_runs persistence and queries
- route batch detail and reconcile writes through batch_id/host_id
- refresh production boards with host-scope acceptance artifacts
- include latest real-host acceptance evidence for self_service and subscription

internal/pack/loader_test.go

@@ -26,7 +26,7 @@ func TestLoadDirParsesAndValidatesPack(t *testing.T) {
   "display_name": "DeepSeek OpenAI Compatible",
   "base_url": "https://api.deepseek.com",
   "platform": "openai",
-  "account_type": "api",
+  "account_type": "apikey",
   "default_models": ["deepseek-chat", "deepseek-reasoner"],
   "smoke_test_model": "deepseek-chat",
   "group_template": {"name": "DeepSeek 默认分组", "rate_multiplier": 1.0},