feat: v1.3.1 - Multi-transport + Production deployment

- Add HTTP transport (StreamableHTTPServerTransport)
- Add shared server module (src/server/)
- Configure production for hub.descomplicar.pt
- Add SSH tunnel script (start-tunnel.sh)
- Fix connection leak in pg-client.ts
- Fix atomicity bug in comments deletion
- Update docs with test plan for 164 tools

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

start-tunnel.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+# Túnel SSH para MCP Outline PostgreSQL (hub.descomplicar.pt)
+# Cria túnel para o PostgreSQL do Outline no EasyPanel
+#
+# Uso: ./start-tunnel.sh [start|stop|status]
+
+TUNNEL_PORT=5433
+REMOTE_HOST="root@178.63.18.51"
+CONTAINER_IP="172.18.0.46"
+CONTAINER_PORT=5432
+
+start_tunnel() {
+    # Verificar se já está activo
+    if lsof -i :$TUNNEL_PORT >/dev/null 2>&1; then
+        echo "Túnel já activo na porta $TUNNEL_PORT"
+        return 0
+    fi
+
+    # Criar túnel em background
+    ssh -f -N -L $TUNNEL_PORT:$CONTAINER_IP:$CONTAINER_PORT $REMOTE_HOST
+
+    if [ $? -eq 0 ]; then
+        echo "Túnel criado: localhost:$TUNNEL_PORT -> Outline PostgreSQL"
+        echo "DATABASE_URL=postgres://postgres:***@localhost:$TUNNEL_PORT/descomplicar"
+    else
+        echo "Erro ao criar túnel"
+        return 1
+    fi
+}
+
+stop_tunnel() {
+    PID=$(lsof -t -i:$TUNNEL_PORT 2>/dev/null)
+    if [ -n "$PID" ]; then
+        kill $PID
+        echo "Túnel terminado (PID: $PID)"
+    else
+        echo "Nenhum túnel activo na porta $TUNNEL_PORT"
+    fi
+}
+
+status_tunnel() {
+    if lsof -i :$TUNNEL_PORT >/dev/null 2>&1; then
+        echo "Túnel ACTIVO na porta $TUNNEL_PORT"
+        lsof -i :$TUNNEL_PORT | grep ssh
+    else
+        echo "Túnel INACTIVO"
+    fi
+}
+
+case "${1:-start}" in
+    start)
+        start_tunnel
+        ;;
+    stop)
+        stop_tunnel
+        ;;
+    status)
+        status_tunnel
+        ;;
+    *)
+        echo "Uso: $0 [start|stop|status]"
+        exit 1
+        ;;
+esac