agent-2pc v1.9.0: Unified Diff Preview Engine & Portable .a2pc Transaction Bundles

⚡ What's New in v1.9.0

• Transaction Unified Diff & Diffstat Engine (src/diff.rs):
  • Added agent-2pc diff --tid <TID> [--stat] and MCP tool agent_2pc_diff.
  • Generates git-style unified diffs and file change statistics across all staged mutations in Phase 1 before calling commit.
• Portable Swarm Transaction Bundles (src/bundle.rs):
  • Added agent-2pc export --tid <TID> [--output <file>] and agent-2pc import --file <bundle.a2pc>.
  • Serializes an active 2PC transaction into a portable .a2pc bundle with full scratch filesystem payloads and CRC32 tamper verification.
  • Allows cross-agent handoffs, multi-agent code review, and swarm coordination.
• MCP Surface Expansion (19 Tools):
  • Registered agent_2pc_diff, agent_2pc_export, and agent_2pc_import with full M8ven/OpenAI dual-location behavioral annotations.
• Client SDKs Updated:
  • Python SDK: added session.diff(stat=...) and session.export_bundle(output=...).
  • TypeScript SDK: added session.diff(stat?: boolean) and session.exportBundle(output?: string).
• Registry & Verification:
  • 49/49 passing tests across 12 test suites.
  • Clippy clean on Rust 2024 edition.
  • Live on Crates.io: cargo install agent-2pc (v1.9.0).