feat(pricing): add cucloud and bytedance payg importers

- Add import_cucloud_pricing.go for 联通云 payg 公开价抓取
- Add import_bytedance_pricing.go for 火山引擎/ByteDance Ark 定价导入
- Include test files and sample testdata for both importers
- Update plan catalog inventory docs and seeds
- Add cucloud pricing importer implementation plan
- Align pipeline scripts and smoke gate tests

scripts/import_cucloud_pricing_test.go

@@ -0,0 +1,95 @@
+//go:build llm_script
+
+package main
+
+import (
+	"bytes"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestParseCUCloudPricingBuildsBlendedRecords(t *testing.T) {
+	raw, err := os.ReadFile(filepath.Join("testdata", "cucloud_pricing_sample.html"))
+	if err != nil {
+		t.Fatalf("读取 fixture 失败: %v", err)
+	}
+
+	records, summary, err := parseCUCloudPricingCatalog(string(raw), defaultCUCloudPricingURL)
+	if err != nil {
+		t.Fatalf("parseCUCloudPricingCatalog 返回错误: %v", err)
+	}
+	if len(records) != 4 {
+		t.Fatalf("期望 4 条联通云价格记录，实际 %d", len(records))
+	}
+	if summary.Models != 3 || summary.Records != 4 || summary.Regions != 2 {
+		t.Fatalf("summary 计数错误: %+v", summary)
+	}
+	if !summary.PaygModeConfirmed || summary.PaygPriceTablePublic {
+		t.Fatalf("payg 摘要错误: %+v", summary)
+	}
+
+	recordMap := make(map[string]officialPricingRecord, len(records))
+	for _, record := range records {
+		recordMap[record.ModelName+"|"+record.Region] = record
+	}
+
+	pro := recordMap["DeepSeek-V4-Pro|贵阳基地二区"]
+	if pro.InputPrice != 9.3 || pro.OutputPrice != 9.3 || pro.ProviderName != "DeepSeek" {
+		t.Fatalf("DeepSeek-V4-Pro 记录错误: %+v", pro)
+	}
+	flash := recordMap["DeepSeek-V4-Flash|贵阳基地二区"]
+	if flash.InputPrice != 0.7 || flash.OutputPrice != 0.7 || flash.ProviderName != "DeepSeek" {
+		t.Fatalf("DeepSeek-V4-Flash 记录错误: %+v", flash)
+	}
+	miniWuhan := recordMap["MiniMax-M2.5|武汉四区"]
+	if miniWuhan.InputPrice != 1.1 || miniWuhan.OutputPrice != 1.1 || miniWuhan.ProviderName != "MiniMax" {
+		t.Fatalf("MiniMax-M2.5 武汉记录错误: %+v", miniWuhan)
+	}
+	miniGuiyang := recordMap["MiniMax-M2.5|贵阳基地二区"]
+	if miniGuiyang.InputPrice != 1.1 || miniGuiyang.OutputPrice != 1.1 {
+		t.Fatalf("MiniMax-M2.5 贵阳记录错误: %+v", miniGuiyang)
+	}
+	if _, ok := recordMap["MiniMax-M2.5|上海二十二区"]; ok {
+		t.Fatalf("不支持的区域不应生成记录")
+	}
+}
+
+func TestParseCUCloudPricingRequiresBlendedPriceTable(t *testing.T) {
+	raw, err := os.ReadFile(filepath.Join("testdata", "cucloud_pricing_sample.html"))
+	if err != nil {
+		t.Fatalf("读取 fixture 失败: %v", err)
+	}
+	broken := strings.Replace(string(raw), "综合单价9.30元/百万tokens", "综合单价元/百万tokens", 1)
+	if _, _, err := parseCUCloudPricingCatalog(broken, defaultCUCloudPricingURL); err == nil {
+		t.Fatalf("缺少 blended 价格时应返回错误")
+	}
+}
+
+func TestRunCUCloudPricingImportDryRunPrintsSummary(t *testing.T) {
+	var out bytes.Buffer
+	err := runCUCloudPricingImport(cucloudPricingImportConfig{
+		URL:     defaultCUCloudPricingURL,
+		Fixture: filepath.Join("testdata", "cucloud_pricing_sample.html"),
+		DryRun:  true,
+	}, nil, &out)
+	if err != nil {
+		t.Fatalf("runCUCloudPricingImport 返回错误: %v", err)
+	}
+	output := out.String()
+	for _, want := range []string{
+		"source=cucloud-pricing-import",
+		"models=3",
+		"records=4",
+		"regions=2",
+		"operator=Unicom AISP",
+		"payg_mode_confirmed=true",
+		"payg_price_table_public=false",
+		"dry_run=true",
+	} {
+		if !strings.Contains(output, want) {
+			t.Fatalf("输出缺少 %q，实际: %q", want, output)
+		}
+	}
+}