Fix windows ntlmv2 signing

[matteoguarnaccia]

Summary

Fixes Windows share authentication/connectivity with modern SMB servers.

Problem

• NTLMv2 challenge fields were not fully reused when building the Type 3 message.
• The client advertised unsupported NTLM Version data.
• Some SMB2 servers accept authentication but reject TREE_CONNECT with STATUS_ACCESS_DENIED when SMB2 signing is required.
• TREE_CONNECT included the port in the UNC path.

Changes

• Parse NTLM Type 2 challenge flags, target info, and server challenge.
• Build the NTLMv2 response using the server-provided target info.
• Derive the NTLMv2 session base key.
• Sign authenticated SMB2 requests with HMAC-SHA256.
• Send TREE_CONNECT path as \\host\share.
• Pin @types/node to a TypeScript 4-compatible Node 18 version so the project builds reliably.

Validation

Tested against a Windows SMB share with:

• NTLMv2 authentication
• SMB2 TREE_CONNECT
• readDirectory("/")

Build validation:

• npm.cmd run build