feat(gateway): 补齐桌面端高级媒体直连接口

新增图片矢量化、视频超分、每日用量、计价与任务隔离能力，并通过环境变量解析平台凭据。

已通过 Go 全量门禁、迁移检查、镜像构建以及 Vectorizer 五格式和 Topaz 3 秒视频真实 DEV 验收。

apps/api/internal/runner/param_processor_test.go

@@ -39,6 +39,20 @@ func TestVideoModelTypeInferenceReadsContentArray(t *testing.T) {
 	}
 }
 
+func TestAdvancedMediaModelTypeInference(t *testing.T) {
+	if got := modelTypeFromKind("images.vectorize", nil); got != "image_vectorize" {
+		t.Fatalf("images.vectorize model type = %s", got)
+	}
+	if got := modelTypeFromKind("videos.upscales", nil); got != "video_enhance" {
+		t.Fatalf("videos.upscales model type = %s", got)
+	}
+	for _, alias := range []string{"vectorize", "image-vectorizer", "image_vectorize"} {
+		if got := canonicalModelType(alias); got != "image_vectorize" {
+			t.Fatalf("canonical image vectorize alias %q = %q", alias, got)
+		}
+	}
+}
+
 func TestVideoContentTextContributesToTokenEstimate(t *testing.T) {
 	tokens := estimateRequestTokens(map[string]any{
 		"model": "demo-video",