feat: add local auth billing and usage management

lib/evolink/image-client.ts

@@ -2,12 +2,13 @@ import type { EnabledImageCapability, GenerationStatus } from "@/lib/types";
 
 export type ImageCreationEngine = "jimeng" | "evolink" | "bailian";
 
+export const EVOLINK_PLATFORM_RESOLUTION = "1K" as const;
+
 export type EvolinkImageSettings = {
   apiKey?: string;
   baseUrl: string;
   model: string;
   quality?: string;
-  resolution?: string;
 };
 
 export type EvolinkImageConfig = EvolinkImageSettings & {
@@ -33,11 +34,9 @@ export function getSelectedImageEngine(): ImageCreationEngine {
 }
 
 export function getEffectiveImageEngine(capability: EnabledImageCapability, override?: unknown): ImageCreationEngine {
-  if (capability === "image.upscale") return "jimeng";
   const overrideEngine = normalizeImageEngine(override);
   if (overrideEngine) return overrideEngine;
   if (capability === "image.generate") return selectedEngineFrom(process.env.IMAGE_GENERATE_ENGINE);
-  if (capability === "image.inpaint") return selectedEngineFrom(process.env.IMAGE_INPAINT_ENGINE);
   return getSelectedImageEngine();
 }
 
@@ -62,8 +61,7 @@ export function getEvolinkImageSettings(): EvolinkImageSettings {
     apiKey: process.env.EVOLINK_API_KEY?.trim() || undefined,
     baseUrl: (process.env.EVOLINK_BASE_URL || "https://api.evolink.ai").replace(/\/+$/, ""),
     model: process.env.EVOLINK_IMAGE_MODEL || "gpt-image-2",
-    quality: cleanOptional(process.env.EVOLINK_IMAGE_QUALITY),
-    resolution: cleanOptional(process.env.EVOLINK_IMAGE_RESOLUTION || "2K")
+    quality: cleanOptional(process.env.EVOLINK_IMAGE_QUALITY)
   };
 }
 
@@ -85,33 +83,20 @@ export function buildEvolinkImagePayload(
   input: Record<string, unknown>,
   settings = getEvolinkImageSettings()
 ): Record<string, unknown> {
-  if (capability === "image.upscale") {
-    throw new Error("EvoLink image engine does not support upscale in this integration.");
-  }
-
   const prompt = String(input.prompt || "").trim();
   const imageUrls = asStringArray(input.imageUrls);
   const payload: Record<string, unknown> = {
     model: settings.model,
-    prompt: prompt || (capability === "image.inpaint" ? "删除" : ""),
+    prompt,
     n: 1
   };
 
   if (!payload.prompt) throw new Error("Prompt is required for image generation.");
   const quality = cleanOptional(typeof input.quality === "string" ? input.quality : undefined) || settings.quality;
   if (quality) payload.quality = quality;
-  if (settings.resolution) payload.resolution = settings.resolution;
+  payload.resolution = EVOLINK_PLATFORM_RESOLUTION;
   assignSize(payload, input);
 
-  if (capability === "image.inpaint") {
-    if (imageUrls.length !== 2) {
-      throw new Error("EvoLink inpainting requires original image and mask URLs.");
-    }
-    payload.image_urls = [imageUrls[0]];
-    payload.mask_url = imageUrls[1];
-    return payload;
-  }
-
   if (imageUrls.length) payload.image_urls = imageUrls;
   return payload;
 }