feat: add comprehensive forward handler e2e tests
Add TCP/UDP forward handler e2e tests covering basic forwarding, alias
(forward/tcp), sniffing, raw pipe, idleTimeout, multi-node protocol
filtering, sniffing bypass (403), stateful UDP, and stateless UDP.
New files:
- forward_test.go: ForwardSuite with 9 test methods
- testdata/forward/: server configs (tcp, udp, stateless, sniffing,
bypass, multi-node, idleTimeout)
- scripts/tcp_idle_timeout.py, udp_forward_test.py: Python harnesses
for in-container idle timeout and UDP echo verification
ginuerzh
0bb9109c71