Implements a "sticky" round-robin strategy that uses the same provider account for a configurable number of consecutive calls (default 3) before switching to the next one. This optimizes for prompt caching by reducing organization/account rotation. Adds a configuration input to the Profile settings page. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>