System > Overview's Images metric read the overview's indexed
generated_images rows, while the workspace Overview card and the Images
sidebar badge show the Images page's own total, which also lists files
no row links (110 against 122 on the demo library). The concept's
System metric and sidebar badge are both `images.length`, so the metric
now reads the shell's Images count: one source for all three, a dash
until it is read or when its read failed, re-read on each visit.
The Statistics dialog's "Library totals" were the legacy /stats raw row
counts under the same nouns; they now read "Database records" with
"Prompt records", "Tags on prompts" and "Image records". /stats and the
legacy admin page are unchanged.
Closes#555
Vito
ab17818792