v0.8.0 — the board replays what everyone else did, instead of arriving rearranged

TODO #13, #15 and #18 — Gitea#20 steps 2-4 pointed at a seated player's own screen.
Every accepted intent, and every automatic phase that does anything, becomes an
ordered presentation step. A bot's whole switching turn used to land in one push;
now it arrives as a run of steps, the district panel follows whoever is acting,
and a [N behind] … [Skip] row says how far the board is from the game.

Solitaire runs the same path — one collector inside submit(), which both session
kinds already funnel through — which is where its automatic phases finally get a
visible beat.

Dwell is assigned by kind: switching holds the screen, turn bookkeeping costs
nothing, and the clock turning over earns the beat. Tunable per viewer without a
rebuild, and off entirely at pace 0.

Also: switching was the one class of action logging unattributed, and now names
its train. Reasoning, measurements and the three things that turned out wrong are
in CHANGELOG.md.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01X6cF1iYvJ1kNmzYBzu4QX6

src/engine/apply.ts

@@ -1642,6 +1642,7 @@ function execute(s: GameState, player: PlayerIndex, i: Intent): GameEvent[] {
       const events: GameEvent[] = [
         {
           type: 'trayMoved',
+          player,
           trayId: i.trayId,
           from,
           to: i.to,
@@ -1706,6 +1707,7 @@ function execute(s: GameState, player: PlayerIndex, i: Intent): GameEvent[] {
         // decides which car is next to come off.
         events.push({
           type: 'carsCoupled',
+          player,
           trayId: i.trayId,
           at: i.to,
           stock: dest.couples,
@@ -1726,7 +1728,7 @@ function execute(s: GameState, player: PlayerIndex, i: Intent): GameEvent[] {
       const stock = i.fromNose
         ? tray.consist.slice(0, i.count)
         : tray.consist.slice(tray.consist.length - i.count);
-      return [{ type: 'carsDropped', trayId: i.trayId, at: here, stock, ...(i.fromNose ? { fromNose: true } : {}) }];
+      return [{ type: 'carsDropped', player, trayId: i.trayId, at: here, stock, ...(i.fromNose ? { fromNose: true } : {}) }];
     }
 
     case 'switch.sortConsist': {
@@ -1735,6 +1737,7 @@ function execute(s: GameState, player: PlayerIndex, i: Intent): GameEvent[] {
       return [
         {
           type: 'consistSorted',
+          player,
           trayId: i.trayId,
           at: here,
           before: tray.consist.map((c) => ({ ...c })),