feat: add Avalanche C-Chain network support

package.json

@@ -13,7 +13,7 @@
 	},
 	"dependencies": {
 		"@erc7730/sdk": "^0.1.3",
-		"@openscan/network-connectors": "1.3.2",
+		"@openscan/network-connectors": "1.4.0",
 		"@rainbow-me/rainbowkit": "^2.2.8",
 		"@react-native-async-storage/async-storage": "^1.24.0",
 		"@tanstack/react-query": "^5.90.21",

src/config/networks.json

@@ -185,6 +185,35 @@
         }
       ]
     },
+    {
+      "type": "evm",
+      "networkId": "eip155:43114",
+      "slug": "avax",
+      "name": "Avalanche C-Chain",
+      "shortName": "Avalanche",
+      "description": "EVM-compatible smart contract platform with high throughput",
+      "currency": "AVAX",
+      "color": "#E84142",
+      "isTestnet": false,
+      "logo": "assets/networks/43114.svg",
+      "links": [
+        {
+          "name": "Website",
+          "url": "https://www.avax.network",
+          "description": "Official Avalanche website"
+        },
+        {
+          "name": "Docs",
+          "url": "https://docs.avax.network",
+          "description": "Developer documentation"
+        },
+        {
+          "name": "Bridge",
+          "url": "https://core.app/bridge",
+          "description": "Bridge assets to Avalanche"
+        }
+      ]
+    },
     {
       "type": "evm",
       "networkId": "eip155:11155111",

src/services/adapters/EVMAdapter/EVMAdapter.ts

@@ -11,7 +11,8 @@ import {
 
 import { normalizeBlockNumber } from "../shared/normalizeBlockNumber";
 import { mergeMetadata } from "../shared/mergeMetadata";
-import type { EthereumClient, SupportedChainId } from "@openscan/network-connectors";
+import type { EthereumClient } from "@openscan/network-connectors";
+import type { AppChainId } from "../../../types";
 import { getRethClient, NONCE_LOOKUP_CHAIN_ID } from "../../../config/rethProviders";
 import { NonceLookupService } from "../../NonceLookupService";
 
@@ -22,7 +23,7 @@ import { NonceLookupService } from "../../NonceLookupService";
 export class EVMAdapter extends NetworkAdapter {
   private client: EthereumClient;
 
-  constructor(networkId: SupportedChainId | 11155111 | 97 | 31337, client: EthereumClient) {
+  constructor(networkId: AppChainId, client: EthereumClient) {
     super(networkId);
     this.client = client;
 

src/services/adapters/NetworkAdapter.ts

@@ -1,5 +1,6 @@
-import type { SupportedChainId, EthereumClient } from "@openscan/network-connectors";
+import type { EthereumClient } from "@openscan/network-connectors";
 import type {
+  AppChainId,
   Block,
   Transaction,
   Address,
@@ -51,7 +52,7 @@ export abstract class NetworkAdapter {
   isLocalHost: boolean;
   protected txSearch: AddressTransactionSearch | null = null;
 
-  constructor(networkId: SupportedChainId | 31337 | 11155111 | 97) {
+  constructor(networkId: AppChainId) {
     this.networkId = networkId;
     this.isLocalHost = networkId === 31337;
   }

src/services/adapters/adaptersFactory.ts

@@ -8,6 +8,7 @@ import { ArbitrumAdapter } from "./ArbitrumAdapter/ArbitrumAdapter";
 import { BitcoinAdapter } from "./BitcoinAdapter/BitcoinAdapter";
 import type {
   ArbitrumClient,
+  AvalancheClient,
   AztecClient,
   BaseClient,
   BitcoinClient,
@@ -24,21 +25,23 @@ export class AdapterFactory {
    * Create an EVM network adapter
    */
   static createAdapter(
-    networkId: SupportedChainId | 11155111 | 97 | 31337,
+    networkId: SupportedChainId,
     client:
       | EthereumClient
       | OptimismClient
       | BNBClient
       | PolygonClient
       | BaseClient
       | ArbitrumClient
+      | AvalancheClient
       | AztecClient,
   ): NetworkAdapter {
     switch (networkId) {
       case 1:
       case 11155111:
       case 31337:
-        return new EVMAdapter(networkId, client as EthereumClient);
+      case 43114:
+        return new EVMAdapter(networkId, client as unknown as EthereumClient);
       case 10:
         return new OptimismAdapter(networkId, client as OptimismClient);
       case 56:

src/types/index.ts

@@ -1,4 +1,4 @@
-import type { EthLog } from "@openscan/network-connectors";
+import type { EthLog, SupportedChainId } from "@openscan/network-connectors";
 import type React from "react";
 
 // ==================== NETWORK TYPES ====================
@@ -8,6 +8,13 @@ import type React from "react";
  */
 export type NetworkType = "evm" | "bitcoin";
 
+/**
+ * All EVM chain IDs supported by the app.
+ * Maps directly to the connector library's SupportedChainId.
+ * When adding a new EVM network, add its chain ID to network-connectors first.
+ */
+export type AppChainId = SupportedChainId;
+
 // ==================== CORE DOMAIN TYPES ====================
 
 export interface NetworkStats {