fix: Clear answer creation timeout before ICE gathering

The timeout for creating an answer was incorrectly including the
ICE gathering process, causing the answerer to fail when ICE gathering
took close to the timeout duration.

Now the timeout is cleared immediately after createAnswer() completes,
and ICE gathering relies on its own separate timeout.

Fixes connection failures where answerer would timeout even though
the answer was created successfully.

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

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

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@xtr-dev/rondevu-client",
-  "version": "0.5.0",
+  "version": "0.5.1",
   "description": "TypeScript client for Rondevu topic-based peer discovery and signaling server",
   "type": "module",
   "main": "dist/index.js",