feat(providers): add trae/windsurf/zed/workbuddy/codebuddy-intl + icons

- New providers: trae, windsurf, zed, workbuddy, codebuddy-intl
  (registry + executor, wired into executors/index.js + registry/index.js)
- zed: port hosted cloud proxy from OmniRoute — RSA access-token → short-lived
  LLM token exchange (shared/zedAuth.js) + NDJSON {event}/{status}/[DONE]
  stream translated back to OpenAI via Claude/Gemini/OpenAI-Responses translators
- Provider icons (128x128 png) for the 5 new providers
- qoder + tokenRefresh provider tweaks

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

open-sse/providers/registry/trae.js

@@ -0,0 +1,77 @@
+// Trae (ByteDance marscode) provider registry entry.
+// Auth + exchange URLs verified from cockpit-tools/src-tauri/src/modules/trae_oauth.rs.
+// Region origins verified from trae_account.rs lines 63-66.
+// Chat endpoint path /cloudide/api/v3/trae/Chat is GUESSED (TODO verify upstream).
+export default {
+  id: "trae",
+  alias: "tr",
+  uiAlias: "tr",
+  aliases: ["marscode"],
+  category: "oauth",
+  authType: "oauth",
+  hasOAuth: true,
+  authModes: ["oauth"],
+  display: {
+    name: "Trae",
+    icon: "bolt",
+    color: "#FF6A00",
+    textIcon: "TR",
+    website: "https://www.trae.ai",
+    notice: { signupUrl: "https://www.trae.ai" },
+  },
+  transport: {
+    // IDE flow (cockpit-tools verified): x-cloudide-token auth, OpenAI-shaped SSE.
+    baseUrl: "https://api.marscode.com/cloudide/api/v3/trae/Chat",
+    format: "openai",
+    headers: {
+      "x-app-version": "3.5.54",
+      "x-app-type": "stable",
+      "x-env": "production",
+      "client_id": "ono9krqynydwx5",
+      "User-Agent": "Trae/1.0.0 antigravity-cockpit-tools",
+    },
+    // Auth: x-cloudide-token + Authorization: Bearer — injected by executor buildHeaders.
+    auth: {
+      combined: true,
+      header: "x-cloudide-token",
+      scheme: "raw",
+    },
+    usage: {
+      url: "https://api.marscode.com/cloudide/api/v3/trae/GetUserInfo",
+    },
+    regions: {
+      cn: "https://api.marscode.com",
+      sg: "https://api.trae.ai",
+      us: "https://www.trae.ai",
+    },
+    defaultRegion: "cn",
+  },
+  oauth: {
+    clientId: "ono9krqynydwx5",
+    clientSecret: "-",
+    platform: "trae",
+    pollInterval: 1500,
+    // Login guidance returns LoginHost for browser open.
+    loginGuidanceUrl: "https://api.marscode.com/cloudide/api/v3/trae/GetLoginGuidance",
+    // ExchangeToken: refresh -> access (POST JSON, body below).
+    tokenUrl: "https://api.marscode.com/cloudide/api/v3/trae/oauth/ExchangeToken",
+    exchangeTokenUrl: "https://api.marscode.com/cloudide/api/v3/trae/oauth/ExchangeToken",
+    refreshUrl: "https://api.marscode.com/cloudide/api/v3/trae/oauth/ExchangeToken",
+    userInfoUrl: "https://api.marscode.com/cloudide/api/v3/trae/GetUserInfo",
+    // Trae refresh uses custom JSON body, not OAuth form — handled by refresh.js, not config-driven.
+    refresh: { encoding: "json" },
+  },
+  // Model catalog sourced from OmniRoute (IDE flow, core-normal.trae.ai).
+  models: [
+    { id: "auto", name: "Auto (Server Picks)" },
+    { id: "work", name: "Work (Fast)" },
+    { id: "gemini-3.1-pro", name: "Gemini 3.1 Pro" },
+    { id: "gemini-3-flash-solo", name: "Gemini 3 Flash" },
+    { id: "minimax-m3", name: "MiniMax M3" },
+    { id: "minimax-m2.7", name: "MiniMax M2.7" },
+    { id: "kimi-k2.5", name: "Kimi K2.5" },
+    { id: "gpt-5.4", name: "GPT 5.4" },
+    { id: "gpt-5.2", name: "GPT 5.2" },
+  ],
+  features: { usage: true },
+};