feat(imports): add real pricing and subscription collectors

Add plan catalog and subscription schema support, seed baselines, and real importers for core domestic subscriptions plus stable official pricing sources.

This commit also hardens the shared fetch layers so the importers can support live collection and database writes instead of relying on manual placeholders alone.

scripts/youdao_pricing_lib.go

@@ -0,0 +1,76 @@
+//go:build llm_script
+
+package main
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+)
+
+const defaultYoudaoPricingURL = "https://ai.youdao.com/new/model-service"
+
+var youdaoCardPattern = regexp.MustCompile(`(?s)([A-Za-z0-9.+\- ]+)\n([A-Za-z][A-Za-z0-9 ]+)\n.*?上下文长度\s*([0-9A-Za-z., ]+)\n.*?输入[:：]?\s*¥?([\d.]+)\n.*?输出[:：]?\s*¥?([\d.]+)\n.*?(查看详情|即将上线)`)
+
+func parseYoudaoPricingCatalog(raw string) ([]officialPricingRecord, error) {
+	matches := youdaoCardPattern.FindAllStringSubmatch(raw, -1)
+	if len(matches) == 0 {
+		return nil, fmt.Errorf("unexpected youdao pricing content")
+	}
+
+	records := make([]officialPricingRecord, 0, len(matches))
+	for _, match := range matches {
+		modelName := strings.TrimSpace(match[1])
+		providerName := normalizeYoudaoProvider(match[2])
+		if strings.TrimSpace(match[6]) != "查看详情" {
+			continue
+		}
+		providerNameCn, providerCountry, providerWebsite := providerMetadata(providerName)
+		record := officialPricingRecord{
+			ModelID:         normalizeExternalID("youdao", modelName),
+			ModelName:       modelName,
+			ProviderName:    providerName,
+			ProviderNameCn:  providerNameCn,
+			ProviderCountry: providerCountry,
+			ProviderWebsite: providerWebsite,
+			OperatorName:    "Youdao Zhiyun MaaS",
+			OperatorNameCn:  "有道智云 MaaS",
+			OperatorCountry: "CN",
+			OperatorWebsite: "https://sf.163.com",
+			OperatorType:    "relay",
+			Region:          "CN",
+			Currency:        "CNY",
+			InputPrice:      mustParseSubscriptionPrice(match[4]),
+			OutputPrice:     mustParseSubscriptionPrice(match[5]),
+			ContextLength:   parseContextLengthCommon(match[3]),
+			SourceURL:       defaultYoudaoPricingURL,
+			ModelSourceURL:  defaultYoudaoPricingURL,
+			DateConfidence:  "unknown",
+			DateSourceKind:  "official_product_page",
+			Modality:        detectModality(modelName),
+		}
+		record.IsFree = record.InputPrice == 0 && record.OutputPrice == 0
+		records = append(records, record)
+	}
+	if len(records) == 0 {
+		return nil, fmt.Errorf("no active youdao pricing cards found")
+	}
+	return records, nil
+}
+
+func normalizeYoudaoProvider(raw string) string {
+	switch strings.ToLower(strings.TrimSpace(raw)) {
+	case "deepseek":
+		return "DeepSeek"
+	case "qwen":
+		return "Qwen"
+	case "kimi":
+		return "Moonshot AI"
+	case "minimax":
+		return "MiniMax"
+	case "zhipu":
+		return "Zhipu AI"
+	default:
+		return strings.TrimSpace(raw)
+	}
+}