Use connection.createWallet() instead of loading keypair from file

Replace loadWalletFromFile() with connection.createWallet() which creates
and funds a wallet automatically, eliminating the need for a pre-existing
keypair file in the test environment.

Also remove the unused 'os' import and the keypair generation step from
GitHub Actions workflow.

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

Co-Authored-By: Claude <noreply@anthropic.com>

Author: mikemaccana

.github/workflows/test.yml

@@ -35,11 +35,6 @@ jobs:
 
       - run: solana --version
 
-      - name: Generate Solana keypair
-        run: |
-          mkdir -p ~/.config/solana
-          solana-keygen new --no-bip39-passphrase --silent --outfile ~/.config/solana/id.json
-
       - run: npm i
 
       - run: npm test

tests/election.ts

@@ -22,7 +22,6 @@ import {
   deserializeLE,
   buildFinalizeCompDefInstruction,
 } from "./arcium-solana-kit/helpers.js";
-import * as os from "os";
 import { describe, test, before } from "node:test";
 import assert from "node:assert";
 import {
@@ -77,9 +76,7 @@ describe("Election", () => {
     // Initialize Solana Kit connection
     connection = connect("localnet");
 
-    pollAuthority = await connection.loadWalletFromFile(
-      `${os.homedir()}/.config/solana/id.json`
-    );
+    pollAuthority = await connection.createWallet();
 
     // Computation definitions are persistent onchain PDAs that register encrypted instruction handlers
     // (like "vote", "create_poll", "reveal_result"). They must be initialized ONCE per