fix: Add validation for getContract params

.changeset/shy-bats-eat.md

@@ -0,0 +1,5 @@
+---
+"thirdweb": patch
+---
+
+Validate getContract params

packages/thirdweb/src/contract/contract.ts

@@ -1,6 +1,7 @@
 import type { Abi } from "abitype";
 import type { Chain } from "../chains/types.js";
 import type { ThirdwebClient } from "../client/client.js";
+import { isAddress } from "../utils/address.js";
 
 /**
  * @contract
@@ -42,5 +43,14 @@ export type ThirdwebContract<abi extends Abi = []> = Readonly<
 export function getContract<const abi extends Abi = []>(
   options: ContractOptions<abi>,
 ): ThirdwebContract<abi> {
+  if (!options.client) {
+    throw new Error("getContract validation error: Client is required");
+  }
+  if (!isAddress(options.address)) {
+    throw new Error("getContract validation error: Invalid address");
+  }
+  if (!options.chain || !options.chain.id) {
+    throw new Error("getContract validation error: Chain is required");
+  }
   return options;
 }