refactor(open-sse): registry consolidation + DRY media/oauth/adhoc cleanup

- Single-source registry: oauth clientId/tokenUrl, usage URLs, image/embed
  configs, search defaultModel, codex fixedPort, google token url derive.
- Remove 29 unused OmniRoute providers (registry 100→71); media intact.
- De-adhoc: codex literals → registry format/oauth flags; reasoningInject,
  image/embed openrouter headers + xai bodyFields config-driven.
- Add REGISTRY_TEMPLATE.js + expand PROVIDER_DEFAULTS/schema JSDoc.
- Baselines updated; PROVIDERS 62 + alias 90 byte-for-byte, golden snapshots.

Co-authored-by: Cursor <cursoragent@cursor.com>

open-sse/providers/registry/claude.js

@@ -3,13 +3,40 @@ import { CLAUDE_CLI_SPOOF_HEADERS } from "../shared.js";
 export default {
   id: "claude",
   alias: "cc",
+  display: {
+      "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"]},
+    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"
+    },
+  },
+  oauth: {
     clientId: "9d1c250a-e61b-44d9-88ed-5944d1962f5e",
-    tokenUrl: "https://api.anthropic.com/v1/oauth/token"
+    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" },
@@ -19,5 +46,6 @@ export default {
     { 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" }
-  ]
+  ],
+  features: {"usage":true},
 };