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/xiaomi-tokenplan.js

@@ -1,70 +1,42 @@
-
 export default {
-  "id": "xiaomi-tokenplan",
-  "alias": "xiaomi-tokenplan",
+  id: "xiaomi-tokenplan",
+  alias: "xiaomi-tokenplan",
+  aliases: [
+    "xmtp",
+  ],
+  uiAlias: "xmtp",
   display: {
-      "name": "Xiaomi MiMo (Token Plan)",
-      "icon": "smart_toy",
-      "color": "#FF6700",
-      "textIcon": "XT",
-      "website": "https://mimo.xiaomi.com",
-      "notice": {
-          "text": "Xiaomi MiMo Token Plan subscription (API key starts with tp-). Token Plan keys are cluster-specific — select the region matching your subscription.",
-          "apiKeyUrl": "https://mimo.xiaomi.com"
-      }
+    name: "Xiaomi MiMo (Token Plan)",
+    icon: "smart_toy",
+    color: "#FF6700",
+    textIcon: "XT",
+    website: "https://mimo.xiaomi.com",
+    notice: {
+      text: "Xiaomi MiMo Token Plan subscription (API key starts with tp-). Token Plan keys are cluster-specific — select the region matching your subscription.",
+      apiKeyUrl: "https://mimo.xiaomi.com",
+    },
   },
   category: "apikey",
-  uiAlias: "xmtp",
   hasProviderSpecificData: true,
   defaultRegion: "sgp",
-  aliases: ["xmtp"],
-  "transport": {
-    "baseUrl": "https://token-plan-sgp.xiaomimimo.com/v1/chat/completions",
+  transport: {
+    baseUrl: "https://token-plan-sgp.xiaomimimo.com/v1/chat/completions",
     regions: {
       sgp: "https://token-plan-sgp.xiaomimimo.com/v1",
       cn: "https://token-plan-cn.xiaomimimo.com/v1",
-      ams: "https://token-plan-ams.xiaomimimo.com/v1"
+      ams: "https://token-plan-ams.xiaomimimo.com/v1",
     },
-    defaultRegion: "sgp"
+    defaultRegion: "sgp",
   },
-  "models": [
-    {
-      "id": "mimo-v2.5-pro",
-      "name": "MiMo V2.5 Pro"
-    },
-    {
-      "id": "mimo-v2.5-pro-claude",
-      "name": "MiMo V2.5 Pro (Claude Native)",
-      "targetFormat": "claude",
-      "upstreamModelId": "mimo-v2.5-pro"
-    },
-    {
-      "id": "mimo-v2.5",
-      "name": "MiMo V2.5"
-    },
-    {
-      "id": "mimo-v2-pro",
-      "name": "MiMo V2 Pro"
-    },
-    {
-      "id": "mimo-v2-omni",
-      "name": "MiMo V2 Omni"
-    },
-    {
-      "id": "mimo-v2-tts",
-      "name": "MiMo V2 TTS"
-    },
-    {
-      "id": "mimo-v2.5-tts",
-      "name": "MiMo V2.5 TTS"
-    },
-    {
-      "id": "mimo-v2.5-tts-voiceclone",
-      "name": "MiMo V2.5 TTS Voice Clone"
-    },
-    {
-      "id": "mimo-v2.5-tts-voicedesign",
-      "name": "MiMo V2.5 TTS Voice Design"
-    }
-  ]
+  models: [
+    { id: "mimo-v2.5-pro", name: "MiMo V2.5 Pro" },
+    { id: "mimo-v2.5-pro-claude", name: "MiMo V2.5 Pro (Claude Native)", targetFormat: "claude", upstreamModelId: "mimo-v2.5-pro" },
+    { id: "mimo-v2.5", name: "MiMo V2.5" },
+    { id: "mimo-v2-pro", name: "MiMo V2 Pro" },
+    { id: "mimo-v2-omni", name: "MiMo V2 Omni" },
+    { id: "mimo-v2-tts", name: "MiMo V2 TTS" },
+    { id: "mimo-v2.5-tts", name: "MiMo V2.5 TTS" },
+    { id: "mimo-v2.5-tts-voiceclone", name: "MiMo V2.5 TTS Voice Clone" },
+    { id: "mimo-v2.5-tts-voicedesign", name: "MiMo V2.5 TTS Voice Design" },
+  ],
 };