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/black-forest-labs.js

@@ -1,83 +1,31 @@
-
 export default {
-  "id": "black-forest-labs",
-  "alias": "black-forest-labs",
+  id: "black-forest-labs",
+  alias: "black-forest-labs",
+  aliases: [
+    "bfl",
+  ],
+  uiAlias: "bfl",
   display: {
-      "name": "Black Forest Labs",
-      "icon": "image",
-      "color": "#111827",
-      "textIcon": "BF",
-      "website": "https://blackforestlabs.ai",
-      "notice": {
-          "apiKeyUrl": "https://api.bfl.ai"
-      }
+    name: "Black Forest Labs",
+    icon: "image",
+    color: "#111827",
+    textIcon: "BF",
+    website: "https://blackforestlabs.ai",
+    notice: {
+      apiKeyUrl: "https://api.bfl.ai",
+    },
   },
   category: "apikey",
-  uiAlias: "bfl",
   authType: "apikey",
-  aliases: ["bfl"],
-  "transport": null,
-  media: {
-    serviceKinds: ["image"],
-    imageConfig: { baseUrl: "https://api.bfl.ai/v1" }
-  },
-  "models": [
-    {
-      "id": "flux-pro-1.1",
-      "name": "FLUX Pro 1.1",
-      "type": "image",
-      "params": [
-        "n",
-        "size"
-      ]
-    },
-    {
-      "id": "flux-pro-1.1-ultra",
-      "name": "FLUX Pro 1.1 Ultra",
-      "type": "image",
-      "params": [
-        "size"
-      ]
-    },
-    {
-      "id": "flux-pro",
-      "name": "FLUX Pro",
-      "type": "image",
-      "params": [
-        "n",
-        "size"
-      ]
-    },
-    {
-      "id": "flux-dev",
-      "name": "FLUX Dev",
-      "type": "image",
-      "params": [
-        "n",
-        "size"
-      ]
-    },
-    {
-      "id": "flux-kontext-pro",
-      "name": "FLUX Kontext Pro (Edit)",
-      "type": "image",
-      "params": [
-        "size"
-      ],
-      "capabilities": [
-        "edit"
-      ]
-    },
-    {
-      "id": "flux-kontext-max",
-      "name": "FLUX Kontext Max (Edit)",
-      "type": "image",
-      "params": [
-        "size"
-      ],
-      "capabilities": [
-        "edit"
-      ]
-    }
-  ]
+  transport: null,
+  models: [
+    { id: "flux-pro-1.1", name: "FLUX Pro 1.1", params: ["n","size"], kind: "image" },
+    { id: "flux-pro-1.1-ultra", name: "FLUX Pro 1.1 Ultra", params: ["size"], kind: "image" },
+    { id: "flux-pro", name: "FLUX Pro", params: ["n","size"], kind: "image" },
+    { id: "flux-dev", name: "FLUX Dev", params: ["n","size"], kind: "image" },
+    { id: "flux-kontext-pro", name: "FLUX Kontext Pro (Edit)", params: ["size"], capabilities: ["edit"], kind: "image" },
+    { id: "flux-kontext-max", name: "FLUX Kontext Max (Edit)", params: ["size"], capabilities: ["edit"], kind: "image" },
+  ],
+  serviceKinds: ["image"],
+  imageConfig: { baseUrl: "https://api.bfl.ai/v1" },
 };