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/glm-cn.js

@@ -1,44 +1,33 @@
-
 export default {
-  "id": "glm-cn",
-  "alias": "glm-cn",
+  id: "glm-cn",
+  alias: "glm-cn",
   display: {
-      "name": "GLM (China)",
-      "icon": "code",
-      "color": "#DC2626",
-      "textIcon": "GC",
-      "website": "https://open.bigmodel.cn",
-      "notice": {
-          "apiKeyUrl": "https://open.bigmodel.cn/usercenter/apikeys"
-      }
+    name: "GLM (China)",
+    icon: "code",
+    color: "#DC2626",
+    textIcon: "GC",
+    website: "https://open.bigmodel.cn",
+    notice: {
+      apiKeyUrl: "https://open.bigmodel.cn/usercenter/apikeys",
+    },
   },
   category: "apikey",
-  "transport": {
-    "baseUrl": "https://open.bigmodel.cn/api/coding/paas/v4/chat/completions",
-    "headers": {},
-    usage: { url: "https://open.bigmodel.cn/api/monitor/usage/quota/limit" }
+  transport: {
+    baseUrl: "https://open.bigmodel.cn/api/coding/paas/v4/chat/completions",
+    headers: {},
+    usage: {
+      url: "https://open.bigmodel.cn/api/monitor/usage/quota/limit",
+    },
   },
-  "models": [
-    {
-      "id": "glm-5.1",
-      "name": "GLM 5.1"
-    },
-    {
-      "id": "glm-5",
-      "name": "GLM 5"
-    },
-    {
-      "id": "glm-4.7",
-      "name": "GLM-4.7"
-    },
-    {
-      "id": "glm-4.6",
-      "name": "GLM-4.6"
-    },
-    {
-      "id": "glm-4.5-air",
-      "name": "GLM-4.5-Air"
-    }
+  models: [
+    { id: "glm-5.1", name: "GLM 5.1" },
+    { id: "glm-5", name: "GLM 5" },
+    { id: "glm-4.7", name: "GLM-4.7" },
+    { id: "glm-4.6", name: "GLM-4.6" },
+    { id: "glm-4.5-air", name: "GLM-4.5-Air" },
   ],
-  features: {"usage":true,"usageApikey":true},
+  features: {
+    usage: true,
+    usageApikey: true,
+  },
 };