Session Resumption Framework and Multi-Platform Pipeline Automation

This major update introduces a high-performance Session Resumption (Fast Reconnect) mechanism to bypass heavy post-quantum handshakes on reconnections. We have also standardized automated workflows across Windows, Linux, and macOS.

Key Changes & Resolved Issues

• Post-Quantum Session Resumption (Issue #4): Implemented a stateful session-resumption layer. Using a secure server-side SessionStore and AES-GCM Ticket encryption, returning clients can now reuse negotiated master keys. This completely bypasses heavy ML-KEM-768 math, drastically reducing latency on reconnects.
• Lock-Based Client Caching: Integrated active session caching on the client side with strict mutex-based synchronization to prevent race conditions during concurrent connection spawns.
• Standardized Bash Automation (test.sh): Added a Linux and macOS native verification script to parity the Windows PowerShell workflow. It executes formatting, module tidying, go vet, fuzzing, race detection, and cross-compilation.
• Apple Silicon & macOS Support: Upgraded the compilation pipeline to cross-compile optimized production binaries for macOS Intel (darwin/amd64) and macOS Apple Silicon (darwin/arm64), outputting all artifacts to the managed ./dist/ directory.

Performance & Resilience Validation

The new session resumption pipeline was verified under race-detector conditions. Tests confirm smooth fallback behavior: once the Session TTL expires, both client and server gracefully fall back to a full hybrid PQC handshake without dropping active connections.

Verification

To run the new multi-platform test suite, format check, and compile all binaries (Windows, Linux, macOS) locally:

On Linux/macOS:
chmod +x test.sh
./test.sh

On Windows:
.\test.ps1