feat: add local auth billing and usage management

lib/jimeng/capabilities.ts

@@ -5,7 +5,7 @@ export type JimengCapabilityConfig = {
   label: string;
   reqKey: string;
   enabled: boolean;
-  route: "generate" | "inpaint" | "upscale";
+  route: "generate";
   description: string;
   docsUrl: string;
 };
@@ -20,24 +20,6 @@ export function getJimengCapabilities(): Record<ImageCapability, JimengCapabilit
       route: "generate",
       description: "面向营销主图、人像写真、平面设计和风格化素材的通用生成能力。",
       docsUrl: "https://www.volcengine.com/docs/85621/2275082"
-    },
-    "image.inpaint": {
-      id: "image.inpaint",
-      label: "交互编辑 inpainting",
-      reqKey: process.env.JIMENG_IMAGE_INPAINT_REQ_KEY || "jimeng_image2image_dream_inpaint",
-      enabled: true,
-      route: "inpaint",
-      description: "局部重绘与消除笔能力，使用原图和黑白 mask 生成编辑结果。",
-      docsUrl: "https://www.volcengine.com/docs/85621/1976207"
-    },
-    "image.upscale": {
-      id: "image.upscale",
-      label: "智能超清",
-      reqKey: process.env.JIMENG_IMAGE_UPSCALE_REQ_KEY || "jimeng_i2i_seed3_tilesr_cvtob",
-      enabled: true,
-      route: "upscale",
-      description: "对 AIGC 图和低质量图像做 4K/8K 超清与细节增强。",
-      docsUrl: "https://www.volcengine.com/docs/85621/2164806"
     }
   };
 }
@@ -67,42 +49,15 @@ export function buildJimengPayload(
   reqKey: string,
   input: Record<string, unknown>
 ): Record<string, unknown> {
-  if (capability === "image.generate") {
-    const payload: Record<string, unknown> = {
-      req_key: reqKey,
-      prompt: String(input.prompt || "").trim()
-    };
-    if (!payload.prompt) throw new Error("Prompt is required for image generation.");
-    const imageUrls = asStringArray(input.imageUrls);
-    if (imageUrls.length) payload.image_urls = imageUrls;
-    assignOptional(payload, input, ["scale", "width", "height", "min_ratio", "max_ratio", "force_single"]);
-    return payload;
-  }
-
-  if (capability === "image.inpaint") {
-    const imageUrls = asStringArray(input.imageUrls);
-    if (imageUrls.length !== 2) {
-      throw new Error("Inpainting requires exactly two public image URLs: original image and mask.");
-    }
-    return {
-      req_key: reqKey,
-      image_urls: imageUrls,
-      prompt: String(input.prompt || "删除").trim() || "删除",
-      ...(typeof input.seed === "number" ? { seed: input.seed } : {})
-    };
-  }
-
-  const imageUrls = asStringArray(input.imageUrls);
-  if (imageUrls.length !== 1) {
-    throw new Error("Upscale requires exactly one public image URL.");
-  }
-  const resolution = input.resolution === "8k" ? "8k" : "4k";
-  return {
+  const payload: Record<string, unknown> = {
     req_key: reqKey,
-    image_urls: imageUrls,
-    resolution,
-    ...(typeof input.scale === "number" ? { scale: input.scale } : {})
+    prompt: String(input.prompt || "").trim()
   };
+  if (!payload.prompt) throw new Error("Prompt is required for image generation.");
+  const imageUrls = asStringArray(input.imageUrls);
+  if (imageUrls.length) payload.image_urls = imageUrls;
+  assignOptional(payload, input, ["scale", "width", "height", "min_ratio", "max_ratio", "force_single"]);
+  return payload;
 }
 
 export function buildJimengQueryPayload(reqKey: string, taskId: string): Record<string, unknown> {