Display alliance timer in player panel (#805)

## Description:
Below Traitor: , There will be Alliance Status. And will display timer,
after timer ends will show Alliance Expired. Also this Alliance Status
will only show if player had alliance.

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [x] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

## Please put your Discord username so you can be contacted if a bug or
regression is found:
dovg

resources/lang/en.json

@@ -403,6 +403,7 @@
     "gold": "Gold",
     "troops": "Troops",
     "traitor": "Traitor",
+    "alliance_time_remaining": "Time Remaining",
     "embargo": "Stopped trading with you",
     "nuke": "Nukes sent by them to you",
     "start_trade": "Start trading",

src/client/graphics/layers/PlayerPanel.ts

@@ -45,6 +45,9 @@ export class PlayerPanel extends LitElement implements Layer {
   @state()
   private isVisible: boolean = false;
 
+  @state()
+  private allianceExpiryText: string | null = null;
+
   public show(actions: PlayerActions, tile: TileRef) {
     this.actions = actions;
     this.tile = tile;
@@ -170,11 +173,38 @@ export class PlayerPanel extends LitElement implements Layer {
       const myPlayer = this.g.myPlayer();
       if (myPlayer !== null && myPlayer.isAlive()) {
         this.actions = await myPlayer.actions(this.tile);
+
+        if (this.actions?.interaction?.allianceCreatedAtTick !== undefined) {
+          const createdAt = this.actions.interaction.allianceCreatedAtTick;
+          const durationTicks = this.g.config().allianceDuration();
+          const expiryTick = createdAt + durationTicks;
+          const remainingTicks = expiryTick - this.g.ticks();
+
+          if (remainingTicks > 0) {
+            const remainingSeconds = Math.max(
+              0,
+              Math.floor(remainingTicks / 10),
+            ); // 10 ticks per second
+            this.allianceExpiryText = this.formatDuration(remainingSeconds);
+          }
+        } else {
+          this.allianceExpiryText = null;
+        }
         this.requestUpdate();
       }
     }
   }
 
+  private formatDuration(totalSeconds: number): string {
+    if (totalSeconds <= 0) return "0s";
+    const minutes = Math.floor(totalSeconds / 60);
+    const seconds = totalSeconds % 60;
+    let time = "";
+    if (minutes > 0) time += `${minutes}m `;
+    time += `${seconds}s`;
+    return time.trim();
+  }
+
   getTotalNukesSent(otherId: PlayerID): number {
     const stats = this.g.player(otherId).stats();
     if (!stats) {
@@ -309,6 +339,20 @@ export class PlayerPanel extends LitElement implements Layer {
                 </div>
               </div>
 
+              ${this.allianceExpiryText !== null
+                ? html`
+                    <div class="flex flex-col gap-1">
+                      <div class="text-white text-opacity-80 text-sm px-2">
+                        ${translateText("player_panel.alliance_time_remaining")}
+                      </div>
+                      <div
+                        class="bg-opacity-50 bg-gray-700 rounded p-2 text-white"
+                      >
+                        ${this.allianceExpiryText}
+                      </div>
+                    </div>
+                  `
+                : ""}
               <!-- Stats -->
               <div class="flex flex-col gap-1">
                 <div class="text-white text-opacity-80 text-sm px-2">

src/core/GameRunner.ts

@@ -201,6 +201,10 @@ export class GameRunner {
         canDonate: player.canDonate(other),
         canEmbargo: !player.hasEmbargoAgainst(other),
       };
+      const alliance = player.allianceWith(other as Player);
+      if (alliance) {
+        actions.interaction.allianceCreatedAtTick = alliance.createdAt();
+      }
     }
 
     return actions;

src/core/game/Game.ts

@@ -616,6 +616,7 @@ export interface PlayerInteraction {
   canTarget: boolean;
   canDonate: boolean;
   canEmbargo: boolean;
+  allianceCreatedAtTick?: Tick;
 }
 
 export interface EmojiMessage {