feat(git): enhance token authentication and credential handling

packages/ui/src/components/sections/git-identities/GitIdentitiesPage.tsx

@@ -73,18 +73,16 @@ export const GitIdentitiesPage: React.FC = () => {
 
   React.useEffect(() => {
     if (importData) {
-      // Pre-fill from imported credential
-      // For repo-specific hosts like "github.com/user/repo", use just "repo" as name
       const parts = importData.host.split('/');
       const displayName = parts.length >= 3 ? parts[parts.length - 1] : importData.host;
-      
+
       setName(displayName);
       setUserName(importData.username);
       setUserEmail('');
       setAuthType('token');
       setSshKey('');
       setHost(importData.host);
-      setColor('string'); // cyan for token-based
+      setColor('string');
       setIcon('code');
     } else if (isNewProfile) {
       setName('');

packages/ui/src/components/sections/git-identities/GitIdentitiesSidebar.tsx

@@ -300,18 +300,11 @@ interface DiscoveredCredentialItemProps {
   onImport: () => void;
 }
 
-/**
- * Get display name for a credential host.
- * For repo-specific hosts like "github.com/user/repo", returns just "repo".
- * For host-only like "github.com", returns "github.com".
- */
 const getCredentialDisplayName = (host: string): string => {
   const parts = host.split('/');
   if (parts.length >= 3) {
-    // repo-specific: github.com/user/repo -> repo
     return parts[parts.length - 1];
   }
-  // host-only: github.com
   return host;
 };