Remove duplicate device counting logic by consolidating three identical
implementations into a single reusable function.
**Changes:**
- Refactor agent_live/index.ex mount/3 to use calculate_device_counts/1
- Delete duplicate calculate_cloud_poller_counts/1 function
- Replace all usages with calculate_device_counts/1
**Before:**
- Lines 31-47: Inline counting for agent_tokens and cloud_pollers
- Lines 312-318: calculate_device_counts/1
- Lines 320-326: calculate_cloud_poller_counts/1 (identical logic)
**After:**
- Single calculate_device_counts/1 function used everywhere
- ~20 lines removed
**Benefits:**
- Eliminates triple duplication of counting logic
- Single source of truth for device counting
- Easier to maintain and test
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Graham McIntire
6f6627a54d