fix(backend): correct federation port forwarding tunnel type handling (#123)

- Fix Type 1 (port forwarding) tunnels to call applyFederationRuntime
  Previously only Type 2 tunnels applied federation runtime, causing
  port forwarding tunnels to not be properly configured in federation mode

- Remove incorrect UDP tunnel type override in federationTunnelCreate
  UDP tunnels were being incorrectly set to Type 2, which conflicted with
  the federation runtime logic that expects Type 1 for port forwarding

These fixes ensure all tunnel types are properly handled in federation mode
with correct runtime configuration applied.

go-backend/internal/http/handler/federation.go

@@ -780,9 +780,6 @@ func (h *Handler) federationTunnelCreate(w http.ResponseWriter, r *http.Request)
 	}
 
 	tunnelType := 1
-	if strings.ToLower(req.Protocol) == "udp" {
-		tunnelType = 2
-	}
 
 	tx, err := h.repo.DB().Begin()
 	if err != nil {

go-backend/internal/http/handler/mutations.go

@@ -569,13 +569,11 @@ func (h *Handler) tunnelCreate(w http.ResponseWriter, r *http.Request) {
 	runtimeState.TunnelID = tunnelID
 	var federationBindings []sqlite.FederationTunnelBinding
 	var federationReleaseRefs []federationRuntimeReleaseRef
-	if typeVal == 2 {
 	federationBindings, federationReleaseRefs, err = h.applyFederationRuntime(runtimeState)
 	if err != nil {
 		response.WriteJSON(w, response.ErrDefault(err.Error()))
 		return
 	}
-	}
 	applyTunnelPortsToRequest(req, runtimeState)
 	if err := replaceTunnelChainsTx(tx, tunnelID, req); err != nil {
 		h.releaseFederationRuntimeRefs(federationReleaseRefs)
@@ -693,13 +691,11 @@ func (h *Handler) tunnelUpdate(w http.ResponseWriter, r *http.Request) {
 
 	var federationBindings []sqlite.FederationTunnelBinding
 	var federationReleaseRefs []federationRuntimeReleaseRef
-	if typeVal == 2 {
 	federationBindings, federationReleaseRefs, err = h.applyFederationRuntime(runtimeState)
 	if err != nil {
 		response.WriteJSON(w, response.ErrDefault(err.Error()))
 		return
 	}
-	}
 	applyTunnelPortsToRequest(req, runtimeState)
 
 	_, err = tx.Exec(`UPDATE tunnel SET name=?, type=?, flow=?, traffic_ratio=?, status=?, in_ip=?, updated_time=? WHERE id=?`,
@@ -2340,7 +2336,7 @@ func (h *Handler) federationLocalDomain() string {
 func (h *Handler) applyFederationRuntime(state *tunnelCreateState) ([]sqlite.FederationTunnelBinding, []federationRuntimeReleaseRef, error) {
 	bindings := make([]sqlite.FederationTunnelBinding, 0)
 	releaseRefs := make([]federationRuntimeReleaseRef, 0)
-	if h == nil || state == nil || state.Type != 2 {
+	if h == nil || state == nil {
 		return bindings, releaseRefs, nil
 	}
 	fc := client.NewFederationClient()