feat: add built-in Volcengine Ark provider support (#741)

Add Volcengine Ark as a first-class API key provider with official model presets, endpoint configuration, API key validation, model discovery, connection testing, provider logo, and runtime alias mapping for `ark/*` model IDs.

Made-with: Cursor

Co-authored-by: kingsy <kingsylin@vip.qq.com>

open-sse/config/providerModels.js

@@ -327,6 +327,19 @@ export const PROVIDER_MODELS = {
     { id: "qwen3-coder-plus", name: "Qwen3 Coder Plus" },
     { id: "glm-4.7", name: "GLM 4.7" },
   ],
+  "volcengine-ark": [
+    { id: "Doubao-Seed-2.0-Code", name: "Doubao-Seed-2.0-Code" },
+    { id: "Doubao-Seed-2.0-pro", name: "Doubao-Seed-2.0-pro" },
+    { id: "Doubao-Seed-2.0-lite", name: "Doubao-Seed-2.0-lite" },
+    { id: "Doubao-Seed-Code", name: "Doubao-Seed-Code" },
+    { id: "GLM-5.1", name: "GLM-5.1" },
+    { id: "MiniMax-M2.7", name: "MiniMax-M2.7" },
+    { id: "Kimi-K2.6", name: "Kimi-K2.6" },
+    { id: "MiniMax-M2.5", name: "MiniMax-M2.5" },
+    { id: "Kimi-K2.5", name: "Kimi-K2.5" },
+    { id: "GLM-4.7", name: "GLM-4.7" },
+    { id: "DeepSeek-V3.2", name: "DeepSeek-V3.2" },
+  ],
   deepseek: [
     { id: "deepseek-chat", name: "DeepSeek V3.2 Chat" },
     { id: "deepseek-reasoner", name: "DeepSeek V3.2 Reasoner" },

open-sse/config/providers.js

@@ -156,6 +156,11 @@ export const PROVIDERS = {
     format: "openai",
     headers: {}
   },
+  "volcengine-ark": {
+    baseUrl: "https://ark.cn-beijing.volces.com/api/coding/v3/chat/completions",
+    format: "openai",
+    headers: {}
+  },
   github: {
     baseUrl: "https://api.githubcopilot.com/chat/completions",
     responsesUrl: "https://api.githubcopilot.com/responses",

open-sse/services/model.js

@@ -49,6 +49,8 @@ const ALIAS_TO_PROVIDER_ID = {
   nanobanana: "nanobanana",
   ch: "chutes",
   chutes: "chutes",
+  ark: "volcengine-ark",
+  "volcengine-ark": "volcengine-ark",
   cursor: "cursor",
   vx: "vertex",
   vertex: "vertex",