feat: add Crush MCP server configurations and validate multiple MCP servers

- Add crush.json with comprehensive MCP configurations for Crush AI assistant
- Configure stdio-based MCPs: penpot, context7, docker, drawio, redmine
- Configure HTTP-based MCP: nextcloud (port 8083 with SSE endpoint)
- Fix mcp-redmine Dockerfile with correct python module entrypoint
- Fix nextcloud-mcp Dockerfile to handle .dockerignore blocking observability
- Fix drawio-mcp Dockerfile to use pnpm and correct build directory
- Update docker-compose.yml with proper MCP server configurations
- Add environment variable configuration for MCPs requiring external services
- Create MCP validation script to test servers with protocol messages
- Update STATUS.md with confirmed working MCP servers and their requirements
- Validate: penpot, context7, docker, drawio, redmine, nextcloud (HTTP)
- Document required env vars for ghost, imap, proxmox, penpot MCPs
- Configure Crush to use both stdio (docker run) and HTTP endpoints

validate-mcp.sh

@@ -14,11 +14,20 @@ INIT_MSG='{"jsonrpc":"2.0","method":"initialize","params":{"capabilities":{},"pr
 test_mcp_server() {
     local container_name=$1
     local timeout=${2:-5}
+    shift 2
+    local env_vars=("$@")
 
     echo -e "${YELLOW}Testing $container_name...${NC}"
 
-    # Run container with stdin input
+    # Build environment arguments
+    local env_args=""
+    for env_var in "${env_vars[@]}"; do
+        env_args="$env_args -e $env_var"
+    done
+
+    # Run container with stdin input and environment variables
     result=$(timeout $timeout docker run --rm -i --name "$container_name-test" \
+        $env_args \
         "$container_name" \
         <<<"$INIT_MSG" \
         2>&1)
@@ -56,14 +65,42 @@ test_mcp_server() {
 echo -e "${YELLOW}=== MCP Server Validation ===${NC}\n"
 
 # Stdio-based MCP servers
-test_mcp_server "kneldevstack-aimiddleware-ghost-mcp"
-test_mcp_server "kneldevstack-aimiddleware-penpot-mcp"
-test_mcp_server "kneldevstack-aimiddleware-imap-mcp"
-test_mcp_server "kneldevstack-aimiddleware-proxmox-mcp"
+test_mcp_server "kneldevstack-aimiddleware-ghost-mcp" \
+    "GHOST_URL=https://ghost.example.com" \
+    "GHOST_API_KEY=dummy-key"
+
+test_mcp_server "kneldevstack-aimiddleware-penpot-mcp" \
+    "PENPOT_URL=https://design.penpot.app" \
+    "PENPOT_TOKEN=dummy-token"
+
+test_mcp_server "kneldevstack-aimiddleware-imap-mcp" \
+    "IMAP_HOST=imap.example.com" \
+    "IMAP_USERNAME=user@example.com" \
+    "IMAP_PASSWORD=dummy-password"
+
+test_mcp_server "kneldevstack-aimiddleware-proxmox-mcp" \
+    "PROXMOX_HOST=https://proxmox.example.com" \
+    "PROXMOX_USER=root@pam" \
+    "PROXMOX_TOKEN=dummy-token" \
+    "PROXMOX_NODE=pve"
+
 test_mcp_server "kneldevstack-aimiddleware-context7-mcp"
+
 test_mcp_server "kneldevstack-aimiddleware-docker-mcp"
+
 test_mcp_server "kneldevstack-aimiddleware-drawio-mcp"
-test_mcp_server "kneldevstack-aimiddleware-mcp-redmine"
-test_mcp_server "kneldevstack-aimiddleware-nextcloud-mcp"
+
+test_mcp_server "kneldevstack-aimiddleware-mcp-redmine" \
+    "REDMINE_URL=https://redmine.example.com" \
+    "REDMINE_API_KEY=dummy-key"
+
+# HTTP-based MCP servers
+echo -e "${YELLOW}Testing nextcloud-mcp (HTTP endpoint)...${NC}"
+result=$(timeout 5 curl -s http://localhost:8083/health/live 2>&1 || echo "Connection failed")
+if echo "$result" | grep -q "200 OK\|healthy"; then
+    echo -e "${GREEN}✓ nextcloud-mcp (HTTP): Running on http://localhost:8083${NC}"
+else
+    echo -e "${YELLOW}⚠ nextcloud-mcp (HTTP): Not running or unhealthy${NC}"
+fi
 
 echo -e "\n${YELLOW}=== Validation Complete ===${NC}"