Add per-route details to status, move socket to /srv/mc-proxy/

mcproxyctl status now shows individual routes per listener with
hostname, backend, mode, and re-encrypt indicator. Proto, gRPC
server, client library, and CLI all updated.

Default gRPC socket path moved from /var/run/mc-proxy.sock to
/srv/mc-proxy/mc-proxy.sock to match the service data directory
convention.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

internal/config/config.go

@@ -39,7 +39,7 @@ type Database struct {
 
 // GRPC holds the gRPC admin API configuration.
 type GRPC struct {
-	Addr string `toml:"addr"` // Unix socket path (e.g., "/var/run/mc-proxy.sock")
+	Addr string `toml:"addr"` // Unix socket path (e.g., "/srv/mc-proxy/mc-proxy.sock")
 }
 
 // Listener is a proxy listener with its routes.
@@ -218,7 +218,7 @@ func (c *Config) validate() error {
 	if c.GRPC.Addr != "" {
 		socketPath := c.GRPC.SocketPath()
 		if !strings.Contains(socketPath, "/") {
-			return fmt.Errorf("grpc.addr must be a Unix socket path (e.g., /var/run/mc-proxy.sock)")
+			return fmt.Errorf("grpc.addr must be a Unix socket path (e.g., /srv/mc-proxy/mc-proxy.sock)")
 		}
 	}
 

internal/config/config_test.go

@@ -200,8 +200,8 @@ func TestGRPCSocketPath(t *testing.T) {
 		addr string
 		want string
 	}{
-		{"/var/run/mc-proxy.sock", "/var/run/mc-proxy.sock"},
-		{"unix:/var/run/mc-proxy.sock", "/var/run/mc-proxy.sock"},
+		{"/srv/mc-proxy/mc-proxy.sock", "/srv/mc-proxy/mc-proxy.sock"},
+		{"unix:/srv/mc-proxy/mc-proxy.sock", "/srv/mc-proxy/mc-proxy.sock"},
 	}
 	for _, tt := range tests {
 		g := GRPC{Addr: tt.addr}
@@ -220,7 +220,7 @@ func TestValidateGRPCUnixSocket(t *testing.T) {
 path = "/tmp/test.db"
 
 [grpc]
-addr = "/var/run/mc-proxy.sock"
+addr = "/srv/mc-proxy/mc-proxy.sock"
 `
 	if err := os.WriteFile(path, []byte(data), 0600); err != nil {
 		t.Fatalf("write config: %v", err)

internal/grpcserver/grpcserver.go

@@ -434,12 +434,23 @@ func (a *AdminServer) GetStatus(_ context.Context, _ *pb.GetStatusRequest) (*pb.
 	var listeners []*pb.ListenerStatus
 	for _, ls := range a.srv.Listeners() {
 		routes := ls.Routes()
+		var pbRoutes []*pb.Route
+		for hostname, route := range routes {
+			pbRoutes = append(pbRoutes, &pb.Route{
+				Hostname:          hostname,
+				Backend:           route.Backend,
+				Mode:              route.Mode,
+				BackendTls:        route.BackendTLS,
+				SendProxyProtocol: route.SendProxyProtocol,
+			})
+		}
 		listeners = append(listeners, &pb.ListenerStatus{
 			Addr:              ls.Addr,
 			RouteCount:        int32(len(routes)),
 			ActiveConnections: ls.ActiveConnections.Load(),
 			ProxyProtocol:     ls.ProxyProtocol,
 			MaxConnections:    ls.MaxConnections,
+			Routes:            pbRoutes,
 		})
 	}