feat(billing): resolve chat and rectification pricing by feature

frontend/src/app/api/consult/route.ts

@@ -29,6 +29,7 @@ import {
   shouldLoadGeneralDailyPanchanga,
 } from "@/lib/consultation-entrypoint";
 import { CreditRpcError } from "@/lib/consultation-billing";
+import { resolveFeaturePricing } from "@/lib/feature-pricing";
 import { reserveConsultationModel } from "@/lib/consultation-model-selection";
 import { resolveSessionLanguageModel } from "@/lib/model-catalog";
 import { createAdminSupabaseClient } from "@/lib/supabase/admin";
@@ -361,12 +362,13 @@ export async function POST(request: Request) {
         chatSession.model_id,
         (modelId) => sessionModel?.id === modelId ? sessionModel : null,
         async (model) => {
+          const pricing = await resolveFeaturePricing(accounting, "chat.standard", model.id);
           const { data, error } = await accounting.rpc("reserve_consultation_usage", {
             p_user_id: userId,
             p_request_id: requestId,
             p_session_id: sessionId,
             p_requested_model_id: model.id,
-            p_credit_cost: model.creditCost,
+            p_credit_cost: pricing.credit_cost,
           });
           const reservation = consultationReservationSchema.safeParse(first(data ?? []));
           if (error || !reservation.success) {

frontend/src/app/api/rectification/agent/route.ts

@@ -24,6 +24,7 @@ import { safePublicEvent } from "@/lib/rectification-agentic/v9/stream-mapping";
 import { RECTIFICATION_SKILL_NAME, RECTIFICATION_SKILL_VERSION } from "@/lib/rectification-agentic/v9/case-status";
 import { blocksPromptExtraction } from "@/lib/consult-safety";
 import { authorizeUsage, completeUsage, releaseUsage } from "@/lib/consultation-billing";
+import { resolveFeaturePricing } from "@/lib/feature-pricing";
 import { loadRuntimeFeatureFlags } from "@/lib/feature-flags";
 import { isProductEnabled } from "@/lib/product-access";
 import { resolveSessionLanguageModel } from "@/lib/model-catalog";
@@ -564,12 +565,13 @@ export async function POST(request: Request) {
           }
           try {
             const billingRequestId = await rectificationBillingRequestId(accounting, userId, caseId);
+            const pricing = await resolveFeaturePricing(accounting, "rectification", selectedModel.id);
             const result = await authorizeUsage(accounting, {
               userId,
               requestId: billingRequestId,
               featureKey: "rectification",
               requestedModelId: selectedModel.id,
-              creditCost: selectedModel.creditCost,
+              creditCost: pricing.credit_cost,
             });
             if (result.success) return { success: true, status: 200 };
             return {
@@ -719,8 +721,16 @@ export async function POST(request: Request) {
       } catch (error) {
         const code = error instanceof RectificationToolServiceError ? error.code : "run_failed";
         console.error(`[rectification-v9] run failed case=${caseId} code=${code}`);
-        if (code === "billing_denied" || code.includes("insufficient")) {
-          send({ type: "error", code: "billing_denied", message: "咨询点数不足，请先兑换后再继续。" });
+        if (code === "insufficient_credits" || code.includes("insufficient")) {
+          send({ type: "error", code: "insufficient_credits", message: "校正点数不足，请先兑换后再继续。" });
+        } else if (code === "fair_use_minute") {
+          send({ type: "error", code, message: "请求频率达到安全上限，请稍后再试。" });
+        } else if (code === "fair_use_day") {
+          send({ type: "error", code, message: "今日请求频率达到安全上限，请明天再试。" });
+        } else if (code === "fair_use_billing_period") {
+          send({ type: "error", code, message: "当前账户触发安全熔断，请稍后再试或联系支持。" });
+        } else if (code === "billing_denied") {
+          send({ type: "error", code, message: "暂时无法确认校正点数，请稍后重试。" });
         } else if (code.includes("legacy_skill_identity_unverifiable")) {
           send({ type: "error", code: "skill_identity_unverifiable", message: "该校正绑定的是无法核验的历史 Skill，请先采用当前注册版本。" });
         } else if (code.includes("skill_identity_missing")) {

frontend/src/components/admin/feature-pricing-management.tsx

@@ -34,7 +34,6 @@ export function FeaturePricingManagement() {
 
   useEffect(() => {
     let active = true;
-    setIsLoading(true);
     adminRequestJson<{ data: Row[] }>("/api/admin/feature-pricing")
       .then((payload) => { if (active) setRows(payload.data); })
       .finally(() => { if (active) setIsLoading(false); });