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/claude.js

@@ -3,41 +3,61 @@ import { CLAUDE_CLI_SPOOF_HEADERS } from "../shared.js";
 export default {
   id: "claude",
   alias: "cc",
+  uiAlias: "cc",
   display: {
-      "name": "Claude Code",
-      "icon": "smart_toy",
-      "color": "#D97757",
-      "website": "https://claude.ai",
-      "notice": {
-          "signupUrl": "https://claude.ai"
-      },
-      "deprecated": true,
-      "deprecationNotice": "RISK_NOTICE"
+    name: "Claude Code",
+    icon: "smart_toy",
+    color: "#D97757",
+    website: "https://claude.ai",
+    notice: {
+      signupUrl: "https://claude.ai",
+    },
+    deprecated: true,
+    deprecationNotice: "RISK_NOTICE",
   },
   category: "oauth",
-  uiAlias: "cc",
   transport: {
     baseUrl: "https://api.anthropic.com/v1/messages",
     format: "claude",
     urlSuffix: "?beta=true",
-    headers: { ...CLAUDE_CLI_SPOOF_HEADERS },
-    quirks: { cloakToolsOnOAuth: true },
-    auth: {"apiKey":{"header":"x-api-key","scheme":"raw"},"oauth":{"header":"Authorization","scheme":"bearer"},"hooks":["claudeOverlay"]},
+    headers: {
+      "Anthropic-Version": "2023-06-01",
+      "Anthropic-Beta": "claude-code-20250219,oauth-2025-04-20,interleaved-thinking-2025-05-14,context-management-2025-06-27,prompt-caching-scope-2026-01-05,advanced-tool-use-2025-11-20,effort-2025-11-24,structured-outputs-2025-12-15,fast-mode-2026-02-01,redact-thinking-2026-02-12,token-efficient-tools-2026-03-28",
+      "Anthropic-Dangerous-Direct-Browser-Access": "true",
+      "User-Agent": "claude-cli/2.1.92 (external, sdk-cli)",
+      "X-App": "cli",
+      "X-Stainless-Helper-Method": "stream",
+      "X-Stainless-Retry-Count": "0",
+      "X-Stainless-Runtime-Version": "v24.14.0",
+      "X-Stainless-Package-Version": "0.80.0",
+      "X-Stainless-Runtime": "node",
+      "X-Stainless-Lang": "js",
+      "X-Stainless-Arch": "arm64",
+      "X-Stainless-Os": "MacOS",
+      "X-Stainless-Timeout": "600",
+    },
+    quirks: {
+      cloakToolsOnOAuth: true,
+    },
+    auth: {
+      apiKey: {
+        header: "x-api-key",
+        scheme: "raw",
+      },
+      oauth: {
+        header: "Authorization",
+        scheme: "bearer",
+      },
+      hooks: [
+        "claudeOverlay",
+      ],
+    },
     usage: {
       oauthUrl: "https://api.anthropic.com/api/oauth/usage",
       orgUrl: "https://api.anthropic.com/v1/organizations/{org_id}/usage",
-      settingsUrl: "https://api.anthropic.com/v1/settings"
+      settingsUrl: "https://api.anthropic.com/v1/settings",
     },
   },
-  oauth: {
-    clientId: "9d1c250a-e61b-44d9-88ed-5944d1962f5e",
-    authorizeUrl: "https://claude.ai/oauth/authorize",
-    tokenUrl: "https://api.anthropic.com/v1/oauth/token",
-    scopes: ["org:create_api_key", "user:profile", "user:inference"],
-    codeChallengeMethod: "S256",
-    refreshLeadMs: 14400000,
-    refresh: {"encoding":"json"}
-  },
   models: [
     { id: "claude-opus-4-8", name: "Claude Opus 4.8" },
     { id: "claude-opus-4-7", name: "Claude Opus 4.7" },
@@ -45,7 +65,24 @@ export default {
     { id: "claude-sonnet-4-6", name: "Claude Sonnet 4.6" },
     { id: "claude-opus-4-5-20251101", name: "Claude 4.5 Opus" },
     { id: "claude-sonnet-4-5-20250929", name: "Claude 4.5 Sonnet" },
-    { id: "claude-haiku-4-5-20251001", name: "Claude 4.5 Haiku" }
+    { id: "claude-haiku-4-5-20251001", name: "Claude 4.5 Haiku" },
   ],
-  features: {"usage":true},
+  oauth: {
+    clientId: "9d1c250a-e61b-44d9-88ed-5944d1962f5e",
+    authorizeUrl: "https://claude.ai/oauth/authorize",
+    tokenUrl: "https://api.anthropic.com/v1/oauth/token",
+    scopes: [
+      "org:create_api_key",
+      "user:profile",
+      "user:inference",
+    ],
+    codeChallengeMethod: "S256",
+    refreshLeadMs: 14400000,
+    refresh: {
+      encoding: "json",
+    },
+  },
+  features: {
+    usage: true,
+  },
 };