v0.12.1

Changed

• disable homeboy autofix

Fixed

• resolve Instagram username via Facebook Graph API instead of graph.instagram.com, which rejects FB Login tokens with 'Cannot parse access token' and silently stored empty usernames
• return save_account result from OAuth storage callback
• resolve Instagram user ID from Facebook token and support fb_exchange_token
• use Facebook graph endpoint for token exchange
• use Facebook Login dialog for Instagram Graph API publishing