feat: draggable wallet reorder for chart layering

wallets.js

@@ -361,6 +361,26 @@ export class WalletManager {
     this._persist();
     return { success: true };
   }
+
+  /**
+   * Reorder wallets to match the given address sequence.
+   * Addresses listed first are moved to front; remaining keep their original relative order.
+   * Only recognized addresses are kept in the new order.
+   * @param {string[]} addresses
+   */
+  setWalletOrder(addresses) {
+    const addrSet = this._wallets.map(w => w.address);
+    const ordered = [];
+    for (const addr of addresses) {
+      if (addrSet.includes(addr)) {
+        const w = this._wallets.find(x => x.address === addr);
+        if (w) ordered.push(w);
+      }
+    }
+    const remaining = this._wallets.filter(w => !ordered.includes(w));
+    this._wallets = [...ordered, ...remaining];
+    this._persist();
+  }
 }
 
 export default WalletManager;