A move names the round it was made for; a stale one is refused

The room counts rounds played and sends the count in its view; a page
sends it back with each move, and the server refuses a move whose count
is behind (a slow connection, a second click, a stale tab), or that has
no count at all (an old page, told to reload). Before, such a move was
taken as the move for the next round. Found in Dip's acceptance run.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Jm2auWk6RP71CjaAb4FMoG

template/src/lib/net/client.ts

@@ -131,7 +131,7 @@ export function makeApi<State, Input>() {
 		view: (roomId: string, token: string) => call<View>('GET', `/api/rooms/${roomId}?token=${encodeURIComponent(token)}`),
 		/** The gallery's view: no token, no seat, nothing any player could not see. */
 		watch: (roomId: string) => call<View>('GET', `/api/rooms/${roomId}`),
-		turn: (roomId: string, token: string, input: Input) => call<View>('POST', `/api/rooms/${roomId}/turn`, { token, input }),
+		turn: (roomId: string, token: string, input: Input, resolved: number) => call<View>('POST', `/api/rooms/${roomId}/turn`, { token, input, resolved }),
 		say: (roomId: string, token: string, text: string) => call<View>('POST', `/api/rooms/${roomId}/say`, { token, text }),
 		/** A word from the gallery, signed with a name, when the host allows it. */
 		sayFromGallery: (roomId: string, name: string, text: string) => call<View>('POST', `/api/rooms/${roomId}/say`, { name, text }),

template/src/lib/net/room.svelte.ts

@@ -148,7 +148,7 @@ export class Room {
 	async submit(input: Input): Promise<boolean> {
 		this.sending = true;
 		try {
-			return await this.act(() => api.turn(this.roomId, this.token, input), 'The move did not reach the server.');
+			return await this.act(() => api.turn(this.roomId, this.token, input, this.view.resolved), 'The move did not reach the server.');
 		} finally {
 			this.sending = false;
 		}

template/src/lib/net/view.ts

@@ -23,6 +23,8 @@ export interface RoomView<State> {
 	seats: { id: SeatId; name: string; bot: boolean }[];
 	/** Seats that still have to move before the round resolves. */
 	waitingOn: SeatId[];
+	/** Rounds played so far; a move is sent with the count it was made against. */
+	resolved: number;
 	/** The round being written, from one; null before the game begins. */
 	turn: number | null;
 	over: Outcome | null;