fix: branch reset on workdir change and Codex MCP server config merge

- Reset git branch to current when user changes working directory in create-agent modal
- Fix Codex MCP servers not being passed from extra.codex.mcp_servers config
- Remove macbook host from default daemons
- Update test expectations and structure

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/app/src/contexts/daemon-registry-context.tsx

@@ -8,7 +8,6 @@ const LEGACY_SETTINGS_KEY = "@paseo:settings";
 const FALLBACK_DAEMON_URL = "ws://localhost:6767/ws";
 const DEFAULT_DAEMONS: Array<{ label: string; wsUrl: string; restUrl?: string | null }> = [
   { label: "localhost", wsUrl: "ws://localhost:6767/ws" },
-  { label: "macbook", wsUrl: "ws://mohameds-macbook-pro:6767/ws" },
 ];
 const DAEMON_REGISTRY_QUERY_KEY = ["daemon-registry"];