pgmoneta: Model Context Server implementation

The motivation behind this project is to extend and introduce a fully functional MCP server for pgmoneta. To achieve this ultimate goal, we have identified a set of subgoals that will transform the current implementation into a production ready system: Introduce Non-Blocking I/O for Intensive I/O Operations (e.g Backup). Architectural Abstraction refactoring via the Rig Framework. Production-Level Security & Authentication. Knowledge Retrieval via MCP Resources. Testing and Documentation