補齊 PChome AI 例外候選收據

services/pchome_mapping_backlog_service.py

@@ -1402,6 +1402,59 @@ def _build_candidate_decision_envelope(candidate: dict[str, Any], min_score: flo
     }
 
 
+def _next_machine_actions_for_candidate_exception(failure_reasons: list[str]) -> list[str]:
+    actions: list[str] = []
+    if "auto_compare_type_not_receipt_ready" in failure_reasons:
+        actions.extend([
+            "run_variant_bundle_discriminator",
+            "build_named_candidate_evidence_delta",
+        ])
+    if "target_hard_veto_true" in failure_reasons:
+        actions.extend([
+            "keep_candidate_out_of_no_write_receipt",
+            "expand_search_terms_with_unit_basis",
+        ])
+    if "target_match_score_below_min_score" in failure_reasons:
+        actions.append("expand_search_terms_with_brand_spec_anchors")
+    if "missing_momo_product_id" in failure_reasons or "missing_target_pchome_product_id" in failure_reasons:
+        actions.append("drop_incomplete_candidate_and_retry_search")
+    if not actions:
+        actions.append("build_machine_review_exception_receipt")
+    return list(dict.fromkeys(actions))
+
+
+def _build_candidate_exception_receipt(decision: dict[str, Any]) -> dict[str, Any]:
+    failure_reasons = list(decision.get("failure_reasons") or [])
+    receipt_basis = {
+        "decision_id": decision.get("decision_id"),
+        "failure_reasons": failure_reasons,
+        "subject": decision.get("subject") or {},
+    }
+    receipt_hash = hashlib.sha256(
+        json.dumps(receipt_basis, ensure_ascii=False, sort_keys=True, default=str).encode("utf-8")
+    ).hexdigest()
+    return {
+        "receipt_id": f"pchome-direct-mapping-exception-{receipt_hash[:16]}",
+        "source_decision_id": decision.get("decision_id"),
+        "stage": "P2_machine_verifiable_exception_receipt",
+        "subject": decision.get("subject") or {},
+        "failure_reasons": failure_reasons,
+        "next_machine_actions": _next_machine_actions_for_candidate_exception(failure_reasons),
+        "data_quality": decision.get("data_quality") or "needs_machine_review",
+        "confidence": decision.get("confidence"),
+        "expected_resolution": "machine_verifiable_auto_resolution",
+        "guardrails": {
+            "machine_actionable": True,
+            "can_auto_execute": False,
+            "writes_database": False,
+            "persists_candidate": False,
+            "requires_retry_or_evidence_delta": True,
+            "requires_verifier_before_persistence": True,
+            "manual_review_mode": "exception_only",
+        },
+    }
+
+
 def build_pchome_direct_mapping_auto_search_package(
     payload: dict[str, Any],
     batch_size: int = 5,
@@ -1586,6 +1639,10 @@ def build_pchome_direct_mapping_candidate_decision_package(
         for envelope in decision_envelopes
         if envelope.get("decision") == "route_to_machine_review_decision"
     ]
+    machine_review_exception_receipts = [
+        _build_candidate_exception_receipt(envelope)
+        for envelope in machine_review_decisions
+    ]
 
     if not int((search_package.get("summary") or {}).get("selected_direct_mapping_count") or 0):
         result = "NO_DIRECT_MAPPING_TARGETS"
@@ -1611,6 +1668,7 @@ def build_pchome_direct_mapping_candidate_decision_package(
             "candidate_decision_count": len(decision_envelopes),
             "auto_compare_decision_count": len(auto_compare_decisions),
             "machine_review_decision_count": len(machine_review_decisions),
+            "machine_review_exception_receipt_count": len(machine_review_exception_receipts),
             "can_auto_persist_now_count": 0,
             "writes_database_count": 0,
             "persists_candidate_count": 0,
@@ -1619,6 +1677,7 @@ def build_pchome_direct_mapping_candidate_decision_package(
             "stage": "P2_machine_verifiable_candidate_decision",
             "execute_search": bool(execute_search),
             "candidate_decisions": decision_envelopes,
+            "machine_review_exception_receipts": machine_review_exception_receipts,
             "manual_review_mode": "exception_only",
         },
         "decision_acceptance_policy": {
@@ -1635,7 +1694,7 @@ def build_pchome_direct_mapping_candidate_decision_package(
         "next_actions": [
             "Run controlled read-only search first when candidate_decision_count is zero.",
             "Send auto-compare decisions to no-write receipt generation before any persistence.",
-            "Keep machine-review decisions as exception receipts with named failure reasons.",
+            "Route machine-review decisions through exception receipts with named failure reasons and next machine actions.",
         ],
         "safety": {
             "read_only_preview": True,
@@ -2268,6 +2327,9 @@ def build_pchome_growth_ai_automation_readiness(
     selected_search_targets = int(search_summary.get("selected_direct_mapping_count") or 0)
     planned_search_terms = int(search_summary.get("planned_search_term_count") or 0)
     candidate_decision_count = int(decision_summary.get("candidate_decision_count") or 0)
+    exception_receipt_count = int(
+        decision_summary.get("machine_review_exception_receipt_count") or 0
+    )
     waiting_candidate_count = selected_search_targets if not candidate_decision_count else 0
     receipt_count = int(receipt_summary.get("receipt_count") or 0)
     ready_receipt_count = int(receipt_summary.get("ready_for_auto_persistence_count") or 0)
@@ -2278,6 +2340,7 @@ def build_pchome_growth_ai_automation_readiness(
         "mode": AI_EXCEPTION_MODE_MACHINE_VERIFIABLE,
         PRIMARY_HUMAN_GATE_COUNT_KEY: 0,
         "ai_exception_count": exception_count,
+        "exception_receipt_count": exception_receipt_count,
         "routes": [
             {
                 "source": "candidate_decision_package",
@@ -2360,6 +2423,7 @@ def build_pchome_growth_ai_automation_readiness(
             "waiting_candidate_count": waiting_candidate_count,
             "auto_compare_decision_count": int(decision_summary.get("auto_compare_decision_count") or 0),
             "machine_review_decision_count": int(decision_summary.get("machine_review_decision_count") or 0),
+            "machine_review_exception_receipt_count": exception_receipt_count,
             "receipt_count": receipt_count,
             "ready_receipt_count": ready_receipt_count,
             "exception_count": exception_count,