The index a screen draws and the columns a filter reads were ninety percent the same, published twice; they are one document now, and `helm facets` is gone. What each design carries moves out into `loadout.json`, a quarter of the bytes that most filtering never asks for. The two are joined by position and checked by the build each carries: `helm_library_loadout` refuses a loadout from another run, and until one is joined a filter that asks what a design carries is refused rather than answered against designs that carry nothing. Change-Id: I7d15dad9c2926085462f9b38f7274e3e936a6ff4