next.js

b4dabaff - docs: note the `:has()` scaling limit in the Interactive apps guide (#95925)

docs: note the `:has()` scaling limit in the Interactive apps guide (#95925) ### What? Adds a "Good to know" to the Interactive apps guide explaining that the `data-pending` + `group-has-data-pending:`/`has-data-pending:` pattern compiles to the CSS `:has()` selector, and when to reach for client state instead. ### Why? `:has()` is re-evaluated over the anchored subtree whenever the attribute toggles, so a broad anchor (like the whole board) combined with a high-frequency interaction can add up. The guide taught the pattern without noting that scaling limit, so a reader could copy the board-wide dim into a per-frame interaction and hit style-recalc cost. ### How? Documentation only. One callout in Step 3, calibrated so the guide's own board usage stays fine (it toggles only per filter, and dragging deliberately skips it), and pointing to client state for the high-frequency case.