fix: keep purchase readiness consistent with confirmed mappings (#283)

server/app/goauto/purchase/batch.go

@@ -422,6 +422,14 @@ func (s *Service) previewFromDataset(id uint64, dataset batchPreviewDataset, gua
 		}
 		// #190：映射不完整不再拦截，任务以 unresolved 建立并交由规格探测解析。
 	}
+	// Readiness must agree with the mapping shown in the product detail.  A
+	// deterministic suggestion is only a preview; it is not a persisted,
+	// confirmed mapping and must not make the row appear purchase-ready.
+	if source == "unresolved" || !mappingTargetsValid(candidates, syb.TargetColor, syb.TargetSize, item.MappedColor, item.MappedSize) {
+		// Keep Eligible for the existing live-probe path, but expose the
+		// unresolved state so the UI cannot label the row purchase-ready.
+		item.ReasonCode, item.Reason, item.NextAction = CodeMappingRequired, "采购规格尚未匹配并保存", "open_mapping"
+	}
 	reference, minPrice, maxPrice, err := purchasePriceRange(pdd.SpecsJSON, item.MappedColor, guard)
 	if err != nil {
 		item.ReasonCode, item.Reason, item.NextAction = "PDD_PRICE_MISSING", err.Error(), "open_pdd"

server/app/goauto/purchase/batch_spec_match_test.go

@@ -142,7 +142,7 @@ func TestBatchSpecMatchPersistsExactMatchButPurchaseDoesNotWaitForIt(t *testing.
 	service.Matcher = matcher
 
 	before, err := service.BatchPreview(context.Background(), BatchPreviewRequest{SYBProductIDs: []uint64{f.syb.ID}})
-	if err != nil || len(before.Items) != 1 || !before.Items[0].Eligible || !before.Items[0].AIMatchEligible || before.Items[0].ProcessStage != ProcessStagePurchaseReady {
+	if err != nil || len(before.Items) != 1 || !before.Items[0].Eligible || !before.Items[0].AIMatchEligible || before.Items[0].ProcessStage != ProcessStageColorMapping {
 		t.Fatalf("live-probe purchase was incorrectly gated by persisted mapping: %+v err=%v", before, err)
 	}
 
@@ -181,7 +181,7 @@ func TestExtractedUncertainSpecsCanBeMatchedBeforePurchase(t *testing.T) {
 	service.Matcher = matcher
 
 	before, err := service.BatchPreview(context.Background(), BatchPreviewRequest{SYBProductIDs: []uint64{f.syb.ID}})
-	if err != nil || len(before.Items) != 1 || !before.Items[0].Eligible || !before.Items[0].AIMatchEligible || before.Items[0].ProcessStage != ProcessStagePurchaseReady {
+	if err != nil || len(before.Items) != 1 || !before.Items[0].Eligible || !before.Items[0].AIMatchEligible || before.Items[0].ProcessStage != ProcessStageColorMapping {
 		t.Fatalf("extracted uncertain specs were not purchase-ready for live probing: %+v err=%v", before, err)
 	}
 	matched, err := service.BatchSpecMatch(context.Background(), BatchSpecMatchRequest{SYBProductIDs: []uint64{f.syb.ID}})
@@ -231,7 +231,7 @@ func TestBatchPreviewExposesExplicitAIMatchEligibility(t *testing.T) {
 		t.Fatalf("preview failed: %+v err=%v", preview, err)
 	}
 	item := preview.Items[0]
-	if !item.AIMatchEligible || item.AIMatchDisabledReason != "" || !item.Eligible || item.ProcessStage != ProcessStagePurchaseReady {
+	if !item.AIMatchEligible || item.AIMatchDisabledReason != "" || !item.Eligible || item.ProcessStage != ProcessStageColorMapping {
 		t.Fatalf("explicit AI eligibility mismatch: %+v", item)
 	}
 }

server/app/goauto/purchase/batch_test.go

@@ -314,7 +314,7 @@ func TestBatchPreviewBulkLoadsAndNeverCallsAIMatcher(t *testing.T) {
 		t.Fatalf("batch preview used %d queries, want 7 bounded queries including collection eligibility and current purchase rule", queries)
 	}
 	if len(response.Items) != 2 || !response.Items[0].Eligible || !response.Items[1].Eligible || response.EligibleCount != 2 {
-		t.Fatalf("unresolved rows must be ready for mandatory live probing: %+v", response)
+		t.Fatalf("unresolved rows remain eligible for live probing but are not purchase-ready: %+v", response)
 	}
 }
 
@@ -329,7 +329,7 @@ func TestBatchPreviewAllowsIncompleteArchivedCandidatesForMandatoryLiveProbe(t *
 	}
 
 	response, err := testService(db).BatchPreview(context.Background(), BatchPreviewRequest{SYBProductIDs: []uint64{fixture.syb.ID}})
-	if err != nil || len(response.Items) != 1 || !response.Items[0].Eligible || response.Items[0].ProcessStage != ProcessStagePurchaseReady {
+	if err != nil || len(response.Items) != 1 || !response.Items[0].Eligible || response.Items[0].ProcessStage != ProcessStageManualAction {
 		t.Fatalf("incomplete archive blocked live probe task creation: %+v err=%v", response, err)
 	}
 }