refactor(registry): B2 migrate to LiteLLM-style schema — unified models[] with kind field

- 71 registry files: flat `media.*Config.models` → `models[]` with `kind` field
- `media` wrapper removed → serviceKinds, *Config fields promoted top-level
- `type` field renamed to `kind` (llm/image/tts/stt/embedding/embedding/video/music)
- providers/index.js: PROVIDER_MEDIA now built from flat top-level media fields
- shared/constants/providers.js: buildProviderEntry reads flat top-level media fields
- route /v1/models: modelKind() uses kind||type; removed subConfig merge block
- models/info route: removed sub-config fallback lookup (all models in PROVIDER_MODELS)
- ttsProviders/index.js: synthesizeViaConfig reads tts models from PROVIDER_MODELS
- test-models route, helpers.js, validate route: kind||type compat
- Baselines: PROVIDERS 62/62 ✅, Alias 90/90 ✅

Co-authored-by: Cursor <cursoragent@cursor.com>

open-sse/providers/registry/gemini-cli.js

@@ -1,53 +1,51 @@
 import { GOOGLE_OAUTH_CLIENT } from "../shared.js";
 
 export default {
-  "id": "gemini-cli",
-  "alias": "gc",
+  id: "gemini-cli",
+  alias: "gc",
+  uiAlias: "gc",
   display: {
-      "name": "Gemini CLI",
-      "icon": "terminal",
-      "color": "#4285F4",
-      "website": "https://github.com/google-gemini/gemini-cli",
-      "notice": {
-          "signupUrl": "https://github.com/google-gemini/gemini-cli"
-      },
-      "deprecated": true,
-      "deprecationNotice": "RISK_NOTICE"
+    name: "Gemini CLI",
+    icon: "terminal",
+    color: "#4285F4",
+    website: "https://github.com/google-gemini/gemini-cli",
+    notice: {
+      signupUrl: "https://github.com/google-gemini/gemini-cli",
+    },
+    deprecated: true,
+    deprecationNotice: "RISK_NOTICE",
   },
   category: "free",
-  uiAlias: "gc",
-  "transport": {
-    "baseUrl": "https://cloudcode-pa.googleapis.com/v1internal",
-    "format": "gemini-cli",
+  transport: {
+    baseUrl: "https://cloudcode-pa.googleapis.com/v1internal",
+    format: "gemini-cli",
     cliVersion: "0.34.0",
     apiClient: "google-genai-sdk/1.41.0 gl-node/v22.19.0",
     usage: {
       quotaUrl: "https://cloudcode-pa.googleapis.com/v1internal:retrieveUserQuota",
-      loadCodeAssistUrl: "https://cloudcode-pa.googleapis.com/v1internal:loadCodeAssist"
+      loadCodeAssistUrl: "https://cloudcode-pa.googleapis.com/v1internal:loadCodeAssist",
     },
-    ...GOOGLE_OAUTH_CLIENT
+    clientId: "681255809395-oo8ft2oprdrnp9e3aqf6av3hmdib135j.apps.googleusercontent.com",
+    clientSecret: "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",
   },
-  "oauth": {
-    "authorizeUrl": "https://accounts.google.com/o/oauth2/v2/auth",
-    "tokenUrl": "https://oauth2.googleapis.com/token",
-    "userInfoUrl": "https://www.googleapis.com/oauth2/v1/userinfo",
-    "scopes": [
+  models: [
+    { id: "gemini-3-flash-preview", name: "Gemini 3 Flash Preview" },
+    { id: "gemini-3-pro-preview", name: "Gemini 3 Pro Preview" },
+  ],
+  oauth: {
+    authorizeUrl: "https://accounts.google.com/o/oauth2/v2/auth",
+    tokenUrl: "https://oauth2.googleapis.com/token",
+    userInfoUrl: "https://www.googleapis.com/oauth2/v1/userinfo",
+    scopes: [
       "https://www.googleapis.com/auth/cloud-platform",
       "https://www.googleapis.com/auth/userinfo.email",
-      "https://www.googleapis.com/auth/userinfo.profile"
-    ]
-  ,
-    refresh: {"encoding":"form"}
-  },
-  "models": [
-    {
-      "id": "gemini-3-flash-preview",
-      "name": "Gemini 3 Flash Preview"
+      "https://www.googleapis.com/auth/userinfo.profile",
+    ],
+    refresh: {
+      encoding: "form",
     },
-    {
-      "id": "gemini-3-pro-preview",
-      "name": "Gemini 3 Pro Preview"
-    }
-  ],
-  features: {"usage":true},
+  },
+  features: {
+    usage: true,
+  },
 };