Add .ts.net to _isLocalIpAddress() check so Tailscale URLs get the same redirect-safe HTTP handling as local IPs. This fixes auth detection failing to show username/password fields for Tailscale connections. Fixes #38 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>