Restore subscriptions in store and account modal (#4461)

Reverts cdcc7747 ("Hide subscriptions in store and account modal behind
a feature flag").

This re-adds the Subscriptions tab to the store, restores the
subscription panel on the account modal, and re-enables the cosmetics
fetch — removing the `SUBSCRIPTIONS_ENABLED` feature flag that gated
them all behind `false`.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

src/client/AccountModal.ts

@@ -27,7 +27,7 @@ import "./components/Difficulties";
 import "./components/FriendsList";
 import "./components/SubscriptionPanel";
 import { modalHeader } from "./components/ui/ModalHeader";
-import { fetchCosmetics, SUBSCRIPTIONS_ENABLED } from "./Cosmetics";
+import { fetchCosmetics } from "./Cosmetics";
 import { translateText } from "./Utils";
 
 @customElement("account-modal")
@@ -38,9 +38,9 @@ export class AccountModal extends BaseModal {
   @state() private isLoadingUser: boolean = false;
 
   private userMeResponse: UserMeResponse | null = null;
-  private cosmetics: Cosmetics | null = null;
   private statsTree: PlayerStatsTree | null = null;
   private recentGames: PlayerGame[] = [];
+  private cosmetics: Cosmetics | null = null;
 
   constructor() {
     super();
@@ -231,7 +231,6 @@ export class AccountModal extends BaseModal {
   }
 
   private renderSubscriptionPanel(): TemplateResult | "" {
-    if (!SUBSCRIPTIONS_ENABLED) return "";
     const sub = this.userMeResponse?.player?.subscription;
     if (!sub) return "";
     const cosmetic = this.cosmetics?.subscriptions?.[sub.tier] ?? null;
@@ -552,12 +551,10 @@ export class AccountModal extends BaseModal {
     this.isLoadingUser = true;
     this.handleLinkResult(args);
 
-    if (SUBSCRIPTIONS_ENABLED) {
-      void fetchCosmetics().then((cosmetics) => {
-        this.cosmetics = cosmetics;
-        this.requestUpdate();
-      });
-    }
+    void fetchCosmetics().then((cosmetics) => {
+      this.cosmetics = cosmetics;
+      this.requestUpdate();
+    });
 
     void getUserMe()
       .then((userMe) => {