fix(provider): 修正媒体请求转换与上游错误透传

按上游协议能力延迟处理媒体资源：OpenAI 兼容平台默认使用 multipart，显式配置后才发送 JSON URL；Gemini 官方协议使用 Files API，兼容协议使用内嵌 Base64，并同步覆盖相关媒体客户端。\n\n安全的上游 400/422 原始错误会作为下游 message 返回，同时保留结构化诊断信息和历史任务兼容。\n\n验证：API 全量无缓存测试、go vet、pnpm lint、pnpm test、pnpm build、pnpm openapi、git diff --check。
2026-08-05 00:40:42 +08:00
parent c79c2a7b44
commit ebdb96e7d7
19 changed files with 1163 additions and 93 deletions
@@ -53,6 +53,8 @@ curl --fail-with-body \

 Use `PATCH /api/admin/platforms/{platformID}` with the complete platform body. Omit `credentials` to preserve existing secrets. A non-empty credentials object is merged into stored credentials. An empty object clears credentials and requires explicit confirmation.

+OpenAI-compatible image edits use `multipart/form-data` by default. Only set `config.imageEditRequestFormat` to `json_url` when the upstream explicitly documents JSON URL input support; in that mode every image and mask must resolve to a public or presigned HTTP(S) URL. Omitting the setting, or setting it to `multipart`, keeps multipart file upload behavior.
+
 ## Upsert One Platform Model

 `POST /api/admin/platforms/{platformID}/models` inserts or updates the `(platformID, modelName)` binding: