docs: say where the focus bar sits per layout, not per page

F4a called it "a bar at the top of the page", which the previous two
commits made false above `lg` — the working agreement's two-column bullet
and the PRD's desktop split both described a rail the bar was not in.
"Above everything it affects" is the rule that survived the move; where
that lands now depends on whether the layout has a rail.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

AGENTS.md

@@ -511,7 +511,10 @@ to an open page). Four things hold it up:
 - **The page is two columns past `lg`, and the split is the one below.** What the page *tells* the
   reader to do — the next deadlines, tonight's dailies — pins to a rail on the left and stays put
   while the lists it *shows* them scroll beside it. Below that breakpoint it is one column in the
-  same order. The rail's rule belongs to the panel, not the column: the panel is short and the list
+  same order. The focus bar goes at the top of that rail rather than full-width above both columns:
+  it narrows what the rail holds, and a wide row of chips above everything pushes the headline
+  deadline down the page. On a phone, and on the timeline, which has no rail, it is back at the top
+  of the page — one render site per view, never both at once. The rail's rule belongs to the panel, not the column: the panel is short and the list
   is long, so a full-height divider would spend most of its length walling off a gap.
 - **Truncating a list is not re-sorting it.** Each section shows `LIST_CAP` rows and offers "show
   all N". The rows below the cut keep their place in the order, stay counted in the header, and stay

docs/PRD.md

@@ -31,8 +31,9 @@ One persona: a player of 2–5 gacha games who checks in a few times a week, mos
 
 Most often is not only, and the desktop layout is not the phone layout stretched. Past `lg` the page
 splits: what it is *telling* the reader to do — the next deadlines, tonight's dailies — pins to a
-rail on the left and stays put, while the lists it is *showing* them scroll beside it. Below that
+rail on the left and stays put, while the lists it is *showing* them scroll beside it. The focus bar
-breakpoint the same split produces the same answer in one column: instructions first.
+(F4a) rides at the top of that rail, because it narrows what is in it. Below that breakpoint the same
+split produces the same answer in one column: instructions first.
 They care about accuracy of end dates above everything else — a wrong date is worse than a missing
 event, because a missing event sends them to a wiki while a wrong one makes them miss content.
 
@@ -131,9 +132,13 @@ tool for the thing a player of four games actually does while reading: clear one
 next. Doing that with the on/off switches costs two taps per game and leaves the settings panel no
 longer describing what they play.
 
-So focus is a **lens over the filter, not a second filter**: a bar at the top of the page, above
+So focus is a **lens over the filter, not a second filter**: a bar above everything it affects,
-everything it affects, narrowing every view — headline, dailies, lists, calendar and counts — to one
+narrowing every view — headline, dailies, lists, calendar and counts — to one game, with a "next
-game, with a "next game" control that steps through them and ends by returning to all. It never
+game" control that steps through them and ends by returning to all. "Above everything it affects" is
+the top of the page on a phone and on the timeline, and past `lg` it is the top of the checklist's
+rail: there the bar pins with the deadlines and dailies it narrows, rather than spending the full
+width of a wide screen on a row of chips and pushing "next to expire" — the answer the reader opened
+the page for — below the fold to make room. It never
 changes `hiddenGames`, "All" is always one tap away, and a focus on a game that is switched off or
 has left the feed is ignored rather than obeyed, so it can never strand the reader on a blank page
 whose cause is elsewhere. Each chip carries that game's outstanding count, so a game with nothing