fix: ensure proxy is used by @polymarket/clob-client

Add proxy-patch.cjs that patches https.request BEFORE axios is loaded.
This forces all Polymarket API calls through the proxy, including
internal axios instances used by @polymarket/clob-client.

Import patch as very first thing in sniper.js and sniper-tui.js.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/sniper.js

@@ -9,6 +9,9 @@
  * For the TUI dashboard version, use: npm run sniper-tui
  */
 
+// Load proxy patch BEFORE any other imports (must patch https before axios is loaded)
+import './utils/proxy-patch.cjs';
+
 import { validateMMConfig } from './config/index.js';
 import config from './config/index.js';
 import logger from './utils/logger.js';