{
  "contract": "purchase-spec-resolution-v1",
  "schema_version": 1,
  "description": "Admin、Client HTTP 与 Mock 共用的脱敏采购运行时规格解析向量。",
  "defaults": {
    "client_id": "CLIENT-CONTRACT",
    "task_type": "purchase",
    "task_version": 3,
    "pdd_goods_id": "PDD-CONTRACT-001",
    "selected_color": "测试黑",
    "attempt_id": "attempt-contract-001",
    "observed_at": "2026-08-17T08:00:00Z",
    "ai_confidence_threshold_bps": 9000
  },
  "cases": [
    {
      "name": "rule_weight_unique",
      "task_id": "cg-contract-rule",
      "target_size": "60公斤",
      "candidates": ["100斤", "120斤"],
      "candidate_snapshot_hash": "4d5cd9f3c8edcc894ef7806df7bd445718ba674b134abd55733df293f25ba23c",
      "idempotency_key": "spec-resolution-v1:2c84cb3ec6a934384cfe62b8b143d5def0f4cafdc86b77538f8606478bd16ba3",
      "mode": "rule",
      "model": null,
      "expected": {
        "outcome": "matched",
        "source": "rule",
        "candidate_id": "c2",
        "confidence_bps": 10000,
        "model_calls": 0
      }
    },
    {
      "name": "rule_overlap_uncertain",
      "task_id": "cg-contract-overlap",
      "target_size": "50-60公斤",
      "candidates": ["90-110斤", "110-130斤"],
      "candidate_snapshot_hash": "1f186fc40144039ccbaf8d3fbe2bf462cb9b24af101f0f6420fb4ca55dabab72",
      "idempotency_key": "spec-resolution-v1:a812466f92356dccaae11e59346408fcfa5c2bccdbfcd88991647bbce955f67e",
      "mode": "rule",
      "model": null,
      "expected": {
        "outcome": "uncertain",
        "source": "rule",
        "candidate_id": null,
        "confidence_bps": null,
        "model_calls": 0
      }
    },
    {
      "name": "ai_whitelist_match",
      "task_id": "cg-contract-ai-match",
      "target_size": "L码",
      "candidates": ["M码", "XL码"],
      "candidate_snapshot_hash": "f634515c8a7a0ebd688fd926520405051e12c622c87a4783a05936099ecfb2fa",
      "idempotency_key": "spec-resolution-v1:76722c891bf2c154ec7a129f8628404042305235084c2ea11ecc696383545030",
      "mode": "ai",
      "model": {
        "conclusion": "match",
        "candidate_id": "c2",
        "confidence_bps": 9300,
        "reason": "测试模型唯一选择"
      },
      "expected": {
        "outcome": "matched",
        "source": "ai",
        "candidate_id": "c2",
        "confidence_bps": 9300,
        "model_calls": 1
      }
    },
    {
      "name": "ai_forged_candidate",
      "task_id": "cg-contract-ai-forged",
      "target_size": "L码",
      "candidates": ["M码", "XL码"],
      "candidate_snapshot_hash": "f634515c8a7a0ebd688fd926520405051e12c622c87a4783a05936099ecfb2fa",
      "idempotency_key": "spec-resolution-v1:ef9c252b3df772cca63bb296492f714a340a4c3e26fe504d97a79445a4c6e1b4",
      "mode": "ai",
      "model": {
        "conclusion": "match",
        "candidate_id": "c99",
        "confidence_bps": 9500,
        "reason": "测试伪造候选"
      },
      "expected": {
        "outcome": "rejected",
        "source": "ai",
        "candidate_id": null,
        "confidence_bps": 9500,
        "model_calls": 1
      }
    },
    {
      "name": "ai_low_confidence",
      "task_id": "cg-contract-ai-low",
      "target_size": "L码",
      "candidates": ["M码", "XL码"],
      "candidate_snapshot_hash": "f634515c8a7a0ebd688fd926520405051e12c622c87a4783a05936099ecfb2fa",
      "idempotency_key": "spec-resolution-v1:cd8ef7bb122d5045434bd3f49e7641ac23a3f43be5bc002fed1363276e1c7142",
      "mode": "ai",
      "model": {
        "conclusion": "match",
        "candidate_id": "c2",
        "confidence_bps": 7000,
        "reason": "测试低置信度"
      },
      "expected": {
        "outcome": "uncertain",
        "source": "ai",
        "candidate_id": null,
        "confidence_bps": 7000,
        "model_calls": 1
      }
    },
    {
      "name": "ai_missing_dimension",
      "task_id": "cg-contract-ai-missing",
      "target_size": "L码",
      "candidates": ["M码", "XL码"],
      "candidate_snapshot_hash": "f634515c8a7a0ebd688fd926520405051e12c622c87a4783a05936099ecfb2fa",
      "idempotency_key": "spec-resolution-v1:6fdc71c5d80cae48c76e8fb3f152539c0b063731e47e7c49d21ff0cc4acba0f6",
      "mode": "ai",
      "model": {
        "conclusion": "match",
        "candidate_id": "c2",
        "confidence_bps": 9500,
        "reason": "测试缺少维度",
        "missing_dimensions": ["尺码"]
      },
      "expected": {
        "outcome": "uncertain",
        "source": "ai",
        "candidate_id": null,
        "confidence_bps": 9500,
        "model_calls": 1
      }
    },
    {
      "name": "ai_timeout",
      "task_id": "cg-contract-ai-timeout",
      "target_size": "L码",
      "candidates": ["M码", "XL码"],
      "candidate_snapshot_hash": "f634515c8a7a0ebd688fd926520405051e12c622c87a4783a05936099ecfb2fa",
      "idempotency_key": "spec-resolution-v1:374abeb2ec0a0dec57f2ba9c2976b9598b977de19cc1bfe1af4b23bc768af912",
      "mode": "ai",
      "model": {"error": "timeout"},
      "expected": {
        "outcome": "failed",
        "source": "ai",
        "candidate_id": null,
        "confidence_bps": null,
        "model_calls": 1
      }
    }
  ],
  "error_cases": [
    {"name": "invalid_schema", "base_case": "rule_weight_unique", "mutation": "schema_version_2", "expected_http_status": 400, "expected_error_code": "INVALID_SPEC_RESOLUTION_SCHEMA"},
    {"name": "candidate_id_gap", "base_case": "rule_weight_unique", "mutation": "candidate_id_gap", "expected_http_status": 422, "expected_error_code": "INVALID_SPEC_RESOLUTION_REQUEST"},
    {"name": "snapshot_hash_mismatch", "base_case": "rule_weight_unique", "mutation": "snapshot_hash_mismatch", "expected_http_status": 422, "expected_error_code": "SPEC_RESOLUTION_HASH_MISMATCH"},
    {"name": "selected_color_not_claimed", "base_case": "rule_weight_unique", "mutation": "selected_color_not_claimed", "expected_http_status": 422, "expected_error_code": "INVALID_SPEC_RESOLUTION_REQUEST"},
    {"name": "target_size_not_claimed", "base_case": "rule_weight_unique", "mutation": "target_size_not_claimed", "expected_http_status": 422, "expected_error_code": "INVALID_SPEC_RESOLUTION_REQUEST"},
    {"name": "observed_at_without_timezone", "base_case": "rule_weight_unique", "mutation": "observed_at_without_timezone", "expected_http_status": 422, "expected_error_code": "INVALID_SPEC_RESOLUTION_REQUEST"},
    {"name": "attempt_id_too_long", "base_case": "rule_weight_unique", "mutation": "attempt_id_too_long", "expected_http_status": 422, "expected_error_code": "INVALID_SPEC_RESOLUTION_REQUEST"},
    {"name": "body_too_large", "base_case": "rule_weight_unique", "mutation": "body_too_large", "expected_http_status": 400, "expected_error_code": "INVALID_BODY"},
    {"name": "task_not_found", "base_case": "rule_weight_unique", "mutation": "task_not_found", "expected_http_status": 404, "expected_error_code": "TASK_NOT_FOUND"},
    {"name": "task_not_purchase", "base_case": "rule_weight_unique", "mutation": "task_not_purchase", "expected_http_status": 422, "expected_error_code": "TASK_NOT_PURCHASE"},
    {"name": "task_version_conflict", "base_case": "rule_weight_unique", "mutation": "task_version_conflict", "expected_http_status": 409, "expected_error_code": "TASK_VERSION_CONFLICT"},
    {"name": "pdd_goods_mismatch", "base_case": "rule_weight_unique", "mutation": "pdd_goods_mismatch", "expected_http_status": 422, "expected_error_code": "PDD_GOODS_MISMATCH"},
    {"name": "task_not_claimed", "base_case": "rule_weight_unique", "mutation": "task_not_claimed", "expected_http_status": 403, "expected_error_code": "TASK_NOT_CLAIMED_BY_CLIENT"},
    {"name": "idempotency_conflict", "base_case": "rule_weight_unique", "mutation": "idempotency_conflict", "expected_http_status": 409, "expected_error_code": "IDEMPOTENCY_CONFLICT"}
  ]
}