Add alliance renewal action to Radial Menu (#3148)

## Description:

The following PR replaces the (disabled) alliance request button with an
alliance extension/renewal button when the alliance with the target
player is expiring.

Agreeing to renewal via radial menu also hides the message in the
EventsDisplay.

<img width="369" height="364" alt="image"
src="https://github.com/user-attachments/assets/d8040f5c-ad7b-47d0-852f-925ecbf273a8"
/>


https://github.com/user-attachments/assets/aa589edf-6505-46bf-88a3-aa4c2df9137f

Icon size adjusted:

<img width="294" height="252" alt="image"
src="https://github.com/user-attachments/assets/7ca63500-b1fb-427b-965c-cf121a5213da"
/>

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

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

deshack_82603

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

tests/client/graphics/RadialMenuElements.test.ts

@@ -352,6 +352,112 @@ describe("RadialMenuElements", () => {
 
       expect(allyMenu).toBeDefined();
     });
+
+    it("should show extend element when inAllianceExtensionWindow is true", () => {
+      const allyPlayer = {
+        id: () => 2,
+        isAlliedWith: vi.fn(() => true),
+        isPlayer: vi.fn(() => true),
+      } as unknown as PlayerView;
+      mockParams.selected = allyPlayer;
+      mockGame.owner = vi.fn(() => allyPlayer);
+      mockPlayerActions.interaction = {
+        ...mockPlayerActions.interaction,
+        canBreakAlliance: true,
+        allianceInfo: {
+          expiresAt: 100,
+          inExtensionWindow: true,
+          myPlayerAgreedToExtend: true,
+          otherAgreedToExtend: false,
+          canExtend: false,
+        },
+      };
+
+      const subMenu = rootMenuElement.subMenu!(mockParams);
+      const extendMenu = subMenu.find((item) => item.id === "ally_extend");
+
+      expect(extendMenu).toBeDefined();
+    });
+
+    it("should not show extend element when inAllianceExtensionWindow is false", () => {
+      const allyPlayer = {
+        id: () => 2,
+        isAlliedWith: vi.fn(() => true),
+        isPlayer: vi.fn(() => true),
+      } as unknown as PlayerView;
+      mockParams.selected = allyPlayer;
+      mockGame.owner = vi.fn(() => allyPlayer);
+      mockPlayerActions.interaction = {
+        ...mockPlayerActions.interaction,
+        canBreakAlliance: true,
+        allianceInfo: {
+          expiresAt: 100,
+          inExtensionWindow: false,
+          myPlayerAgreedToExtend: false,
+          otherAgreedToExtend: false,
+          canExtend: false,
+        },
+      };
+
+      const subMenu = rootMenuElement.subMenu!(mockParams);
+      const extendMenu = subMenu.find((item) => item.id === "ally_extend");
+
+      expect(extendMenu).toBeUndefined();
+    });
+
+    it("should show extend element as disabled when canExtend is false", () => {
+      const allyPlayer = {
+        id: () => 2,
+        isAlliedWith: vi.fn(() => true),
+        isPlayer: vi.fn(() => true),
+      } as unknown as PlayerView;
+      mockParams.selected = allyPlayer;
+      mockGame.owner = vi.fn(() => allyPlayer);
+      mockPlayerActions.interaction = {
+        ...mockPlayerActions.interaction,
+        canBreakAlliance: true,
+        allianceInfo: {
+          expiresAt: 100,
+          inExtensionWindow: true,
+          myPlayerAgreedToExtend: true,
+          otherAgreedToExtend: false,
+          canExtend: false,
+        },
+      };
+
+      const subMenu = rootMenuElement.subMenu!(mockParams);
+      const extendMenu = subMenu.find((item) => item.id === "ally_extend");
+
+      expect(extendMenu).toBeDefined();
+      expect(extendMenu!.disabled(mockParams)).toBe(true);
+    });
+
+    it("should show extend element as enabled when canExtend is true", () => {
+      const allyPlayer = {
+        id: () => 2,
+        isAlliedWith: vi.fn(() => true),
+        isPlayer: vi.fn(() => true),
+      } as unknown as PlayerView;
+      mockParams.selected = allyPlayer;
+      mockGame.owner = vi.fn(() => allyPlayer);
+      mockPlayerActions.interaction = {
+        ...mockPlayerActions.interaction,
+        canBreakAlliance: true,
+        allianceInfo: {
+          expiresAt: 100,
+          inExtensionWindow: true,
+          myPlayerAgreedToExtend: false,
+          otherAgreedToExtend: false,
+          canExtend: true,
+        },
+      };
+
+      const subMenu = rootMenuElement.subMenu!(mockParams);
+      const extendMenu = subMenu.find((item) => item.id === "ally_extend");
+
+      expect(extendMenu).toBeDefined();
+      expect(extendMenu!.disabled(mockParams)).toBe(false);
+    });
   });
 
   describe("Menu element actions", () => {