Stored named model count

Stored latest named-model count for each OpenRouter rankings section in the digest. rankings_daily stores 50. rankings_tool_calling and rankings_image_output store no latest_named_count, so they stay off this page. The label is the stored section name. The number is the stored latest_named_count. With one stored count, the bar is full. The latest_top list on rankings_daily has 12 rows, so 50 is not the length of that list. This count is separate from the named-token total and from the 14-day named-token series. A section with no stored latest named count stays off the page.