chore(providers): refresh catalogs, free tiers, and hide stale ones

Update model lists and context lengths across free/apikey providers,
move bazaarlink, kilo-gateway, and kimchi into freeTier, demote llm7 to
apikey, and hide bluesminds, sambanova, zed, and mimo-free.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

open-sse/providers/registry/kimchi.js

@@ -13,7 +13,7 @@ export default {
       signupUrl: "https://app.kimchi.dev",
     },
   },
-  category: "oauth",
+  category: "freeTier",
   authModes: ["oauth"],
   hasOAuth: true,
   transport: {