feat: MCP Support M2

[double16]

Fixes #49

• MCP servers supported
• stdio runs locally, still needs docker isolation
• Tools are namespaced
• Output is saved in files and only file references are returned for content > 4K
• Changed from numeric toolLimit to list of allowed tools

Review needs

• Is the tool prompt sufficient for the agent?
• Is the list_mcp_tools full catalog sufficient for the agent?
• UI, again, it's vibe coded because I lack experience with react

[double16]

I'm seeing the agent often passing incorrect types to the tool.

Error executing tool port_scan: 2 validation errors for port_scanArguments\nip_addresses\n  Input should be a valid list [type=list_type, input_value='192.168.1.84', input_type=str]\n    For further information visit https://errors.pydantic.dev/2.11/v/list_type\nports\n  Input should be a valid list [type=list_type, input_value='4001', input_type=str]

Here is the tool context prompt:

## MCP TOOLS

Available general MCP tools:
- list_mcp_tools()  # full MCP tool catalog including input schema, output schema, description
- shyhurricane_directory_buster(url: str = None, depth: int = 3, method: str = 'GET', wordlist: Optional[str] = None, cookies: Optional[dict] = None, params: Optional[dict] = None, extensions: Optional[list[str]] = None, ignored_response_codes: Optional[list[int]] = None, additional_hosts: Optional[dict] = None, user_agent: Optional[str] = None, request_headers: Optional[dict] = None, timeout_seconds: Optional[int] = None)
- shyhurricane_port_scan(hostnames: Optional[list[str]] = None, ip_addresses: Optional[list[str]] = None, ip_subnets: Optional[list[str]] = None, ports: Optional[list[int]] = None, port_range_low: Optional[int] = None, port_range_high: Optional[int] = None, additional_hosts: Optional[dict] = None, timeout_seconds: Optional[int] = None, retry: bool = False)

[westonbrown]

Successfully integrated MCP support into release-0.1.4 after resolving config type ordering (MCPConnection forward reference) and logger import path conflicts from the config refactoring. Tested with HTB MCP server - agent successfully discovered 13 tools and executed list_events, retrieve_teams, and other MCP tools with outputs saved to artifacts.

[westonbrown]

Thank you @double16 for this excellent MCP integration work! Since you're unavailable and we needed this feature for release-0.1.4, we've manually integrated your changes with the necessary fixes for our refactored config system (commit 07e1219). The MCP support is now live and tested with HTB - closing this PR as completed.

[westonbrown]

Integrated manually into release-0.1.4 with config compatibility fixes