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/ollama-local.js

@@ -1,20 +1,17 @@
-
 export default {
-  "id": "ollama-local",
-  "alias": "ollama-local",
+  id: "ollama-local",
+  alias: "ollama-local",
   display: {
-      "name": "Ollama Local",
-      "icon": "cloud",
-      "color": "#ffffffff",
-      "textIcon": "OL",
-      "website": "https://ollama.com"
+    name: "Ollama Local",
+    icon: "cloud",
+    color: "#ffffffff",
+    textIcon: "OL",
+    website: "https://ollama.com",
   },
   category: "apikey",
-  "transport": {
-    "baseUrl": "http://localhost:11434/api/chat",
-    "format": "ollama"
+  transport: {
+    baseUrl: "http://localhost:11434/api/chat",
+    format: "ollama",
   },
-  media: {
-    serviceKinds: ["llm"]
-  }
+  serviceKinds: ["llm"],
 };