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/zhipu_coding_plan_lib.go

@@ -0,0 +1,81 @@
+//go:build llm_script
+
+package main
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+)
+
+const (
+	defaultZhipuCodingPlanOverviewURL  = "https://docs.bigmodel.cn/cn/coding-plan/overview"
+	defaultZhipuCodingPlanPromotionURL = "https://docs.bigmodel.cn/cn/update/promotion"
+)
+
+func parseZhipuCodingPlanCatalog(overviewRaw string, promotionRaw string) ([]subscriptionImportRecord, error) {
+	publishedAt, known := publishedAtFromText(firstNonEmptyText(overviewRaw, promotionRaw))
+	pricePattern := regexp.MustCompile(`低至\s*([\d.]+)\s*元/月`)
+	priceMatch := pricePattern.FindStringSubmatch(promotionRaw)
+	if len(priceMatch) != 2 {
+		return nil, fmt.Errorf("zhipu promo floor price not found")
+	}
+
+	modelScope := []string{}
+	modelPattern := regexp.MustCompile(`包含\s+([^\n]+)`)
+	modelMatch := modelPattern.FindStringSubmatch(overviewRaw)
+	if len(modelMatch) == 2 {
+		for _, item := range strings.Split(modelMatch[1], "、") {
+			item = strings.TrimSpace(strings.TrimSuffix(item, "。"))
+			if item != "" {
+				modelScope = append(modelScope, item)
+			}
+		}
+	}
+
+	notes := []string{
+		"GLM Coding Plan 提供 Lite/Pro/Max 三档能力。",
+	}
+	if strings.Contains(overviewRaw, "每 5 小时最多约 80 / 400 / 1,600 次 prompts") {
+		notes = append(notes, "5 小时额度：Lite 80 / Pro 400 / Max 1600 prompts。")
+	}
+	if strings.Contains(overviewRaw, "每周最多约 400 / 2,000 / 8,000 次 prompts") {
+		notes = append(notes, "每周额度：Lite 400 / Pro 2000 / Max 8000 prompts。")
+	}
+	if strings.Contains(overviewRaw, "Lite 套餐每月包含 100 次 MCP 调用") {
+		notes = append(notes, "MCP 月额度：Lite 100 / Pro 1000 / Max 4000。")
+	}
+	if strings.Contains(promotionRaw, "首单 9 折") {
+		notes = append(notes, "首单 9 折优惠，新老用户均可参与。")
+	}
+	notes = append(notes, "公开文档仅披露活动底价，分档定价仍需控制台核验。")
+
+	return []subscriptionImportRecord{{
+		ProviderName:     "Zhipu AI",
+		ProviderNameCn:   "智谱 AI",
+		ProviderCountry:  "CN",
+		ProviderWebsite:  "https://open.bigmodel.cn",
+		OperatorName:     "Zhipu",
+		OperatorNameCn:   "智谱开放平台",
+		OperatorCountry:  "CN",
+		OperatorWebsite:  "https://docs.bigmodel.cn/",
+		OperatorType:     "official",
+		PlanFamily:       "coding_plan",
+		PlanCode:         "zhipu-coding-plan-promo-floor",
+		PlanName:         "GLM Coding Plan 限时活动价（低至）",
+		Tier:             "PromoFloor",
+		BillingCycle:     "monthly",
+		Currency:         "CNY",
+		ListPrice:        mustParseSubscriptionPrice(priceMatch[1]),
+		PriceUnit:        "CNY/month",
+		QuotaValue:       0,
+		QuotaUnit:        "",
+		PlanScope:        "GLM Coding Plan",
+		ModelScope:       modelScope,
+		SourceURL:        defaultZhipuCodingPlanPromotionURL,
+		PublishedAt:      publishedAt,
+		EffectiveDate:    effectiveDateFromPublishedAt(publishedAt),
+		Notes:            strings.Join(notes, "；"),
+		PublishedAtKnown: known,
+	}}, nil
+}