Drop repo:community.lexicon.preference.ai from OAuth scope

PDS auth servers don't list repo:<NSID> scopes in scopes_supported and
the bskyweb OAuth metadata handler hardcodes the legacy scope set, so
requesting the granular scope produces invalid_scope at login. Reverting
to the previously-shipping scope string. The AI preferences feature
continues to work via transition:generic.

Author: rudyfraser

bskyweb/static/oauth-client-metadata.json

@@ -5,7 +5,7 @@
 	"redirect_uris": [
 		"https://blacksky.community/auth/web/callback"
 	],
-	"scope": "atproto transition:generic transition:email transition:chat.bsky identity:handle account:email?action=manage account:status?action=manage repo:community.lexicon.preference.ai",
+	"scope": "atproto transition:generic transition:email transition:chat.bsky identity:handle account:email?action=manage account:status?action=manage",
 	"token_endpoint_auth_method": "none",
 	"response_types": [
 		"code"

src/state/session/oauth-web-client.ts

@@ -15,7 +15,7 @@ const OAUTH_CLIENT_NAME: string =
   process.env.EXPO_PUBLIC_OAUTH_CLIENT_NAME || 'Blacksky Community'
 
 const OAUTH_SCOPE =
-  'atproto transition:generic transition:email transition:chat.bsky identity:handle account:email?action=manage account:status?action=manage repo:community.lexicon.preference.ai'
+  'atproto transition:generic transition:email transition:chat.bsky identity:handle account:email?action=manage account:status?action=manage'
 
 function isLoopback() {
   if (typeof window === 'undefined') return false