fix: enforce coreConnector.createConfig precondition on createEvmWalletAdapter

Author: fernandomg

src/sdk/core/evm/wallet.test.ts

@@ -150,6 +150,16 @@ describe('createEvmWalletAdapter — unit tests', () => {
     ).toThrow('createEvmWalletAdapter requires at least one chain')
   })
 
+  it('throws when coreConnector does not provide createConfig', () => {
+    expect(() =>
+      createEvmWalletAdapter({
+        coreConnector: {} as never,
+        chains: [mainnet],
+        transports: { [mainnet.id]: http() },
+      }),
+    ).toThrow('config.coreConnector must provide a createConfig function')
+  })
+
   // -------------------------------------------------------------------------
   // getStatus()
   // -------------------------------------------------------------------------

src/sdk/core/evm/wallet.ts

@@ -125,6 +125,11 @@ export function createEvmWalletAdapter(config: EvmWalletConfig): EvmWalletAdapte
       'createEvmWalletAdapter requires at least one chain. Provide chains in config.chains.',
     )
   }
+  if (typeof config.coreConnector?.createConfig !== 'function') {
+    throw new Error(
+      'createEvmWalletAdapter: config.coreConnector must provide a createConfig function.',
+    )
+  }
   const wagmiConfig =
     config.wagmiConfig ?? config.coreConnector.createConfig(config.chains, config.transports)
   const supportedChains = config.chains.map(fromViemChain)