Additional OAuth2 logging

app/services/oauth2.js

@@ -167,10 +167,13 @@ class OAuth2Service extends SiteService {
   async processExchange (client, code, redirectUri, done) {
     try {
       const ac = await OAuth2AuthorizationCode.findOne({ code });
+      this.log.debug('process OAuth2 exchange', { client, code, redirectUri });
       if (client.id !== ac.clientId) {
+        this.log.alert('OAuth2 client ID mismatch', { provided: client.id, onfile: ac.clientId });
         return done(null, false);
       }
       if (redirectUri !== ac.redirectUri) {
+        this.log.alert('OAuth2 redirect mismatch', { provided: redirectUri, onfile: ac.redirectUri });
         return done(null, false);
       }
     
@@ -183,6 +186,7 @@ class OAuth2Service extends SiteService {
       });
       await at.save();
 
+      this.log.debug('OAuth2 grant exchanged for token', { client, code, token: at.token });
       return done(null, token);
     } catch (error) {
       this.log.error('failed to process OAuth2 exchange', { error });