实测实录：当大模型"说人话"却答非所问，我们的SDK做了什么？

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TEST 3: L3 FAILOVER — 请求ghost模型，触发provider切换
================================================================
model=neuralbridge-ghost-999 (不存在) → 预期 failover 到健康provider
--- L3_FAILOVER ---
success : True
provider : deepseek
model : deepseek-chat
original_provider: moonshot
original_model : neuralbridge-ghost-999
downgraded : False
heal_level : l3_failover
latency_ms : 857.9
from_cache : False
semantic_domain : tau_neighborhood
validation_passed: None
text_preview : '自愈'
fault.category : FaultCategory.MODEL_NOT_FOUND
fault.sub_category: model_not_found:http_404
fault.confidence : 0.95
fault.should_retry: False
fault.skip_to_failover: True
fault.raw_error : [404] 请求的模型或接口不存在，请检查模型名称
mapek_trace : {
  "request_id": "ca68c546",
  "phases": [
    ["monitor",  7902170749876.513],
    ["analyze", 7902170749913.762],
    ["plan",     7902170749952.27],
    ["execute",  7902170749968.74],
    ["knowledge",7902171699120.177]
  ],
  "monitor_result": "model_not_found",
  "analyze_result": "model_not_found:http_404",
  "plan_result": "l3_failover",
  "execute_result": "healed",
  "knowledge_recorded": true,
  "total_loop_us": 949260.3344842792
}
WALL_MS : 949.4

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TEST 5: CONTRACT VIOLATION — 静默错误捕获
================================================================
required_entities=['NEVER_EXIST_TOKEN_XYZ']
--- CONTRACT_VIOLATION ---
success : True
provider : deepseek
model : deepseek-chat
original_provider: deepseek
original_model : deepseek-chat
downgraded : False
heal_level :
latency_ms : 954.5
from_cache : False
semantic_domain : tau_neighborhood
validation_passed: False
text_preview : '你好！很高兴见到你！😊 有什么我可以帮你的吗？无论是聊聊日常、解答问题，还是需要一些灵感，随时告诉我～'
contract_result : {
  "passed": false,
  "contract_type": "entities",
  "checks": [
    {
      "strategy": "entities",
      "passed": false,
      "detail": "Missing entities: ['NEVER_EXIST_TOKEN_XYZ']"
    }
  ]
}
mapek_trace : {
  "request_id": "84367f79",
  "phases": [
    ["monitor",  7902172302478.84],
    ["analyze", 7902172302509.9795],
    ["plan",     7902172302542.218],
    ["execute",  7902172302555.898],
    ["knowledge",7902173257122.415]
  ],
  "monitor_result": "provider_selected",
  "analyze_result": "nominal",
  "plan_result": "direct",
  "execute_result": "ok",
  "knowledge_recorded": true,
  "total_loop_us": 954670.705832541
}
WALL_MS : 954.9

get_mapek_stats: {
  "version": "5.6.0",
  "total_calls": 15,
  "mapek_phases": {
    "monitor": "every_call",
    "analyze": "every_call",
    "plan": "every_call",
    "execute": "every_call",
    "knowledge": "every_call"
  },
  "heal_cascade": {
    "l1_retry": 0,
    "l2_downgrade": 0,
    "l3_failover": 1,
    "l4_learned": 0
  },
  "contract_validation": {
    "failed_strong_equiv": 0,
    "warning_tau_domain": 1
  },
  "semantic_boundaries": {
    "downgrade_blocked_oob": 0,
    "failover_blocked_oob": 0,
    "drift_fail_loud": 0
  },
  "flywheel_rules": {
    "total_rules": 87,
    "total_records": 15,
    "high_confidence_rules": 65,
    "bootstrap_rules_loaded": false,
    "sync_mode": "local"
  }
}

neuralbridge-cli test --scenario l3_failover --provider moonshot --fallback deepseek
neuralbridge-cli test --scenario contract_validation --required-entity NEVER_EXIST_TOKEN_XYZ