* Sanitize sensitive fields in request header and body in logger
* fix: log request headers, body, and query only when debug logs are enabled
* fix: add missing env to examples
* fix: crash due to missing env vars
feat: enhance security validation for MCP configurations
- Added environment variable checks for CUSTOM_MCP_SECURITY_CHECK, CUSTOM_MCP_PROTOCOL, and HTTP_DENY_LIST across various Docker and application files.
- Implemented validation functions in MCP core to prevent command injection and ensure safe environment variable usage